Malware Analysis Report

2025-03-15 06:47

Sample ID 250113-dq42dawkbq
Target b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N
SHA256 b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6
Tags
winzip orcus discovery rat spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6

Threat Level: Known bad

The file b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N was found to be: Known bad.

Malicious Activity Summary

winzip orcus discovery rat spyware stealer

Orcurs Rat Executable

Orcus main payload

Orcus family

Orcus

Orcurs Rat Executable

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Drops desktop.ini file(s)

Drops file in System32 directory

Drops file in Windows directory

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-13 03:13

Signatures

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A N/A

Orcus family

orcus

Orcus main payload

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-13 03:13

Reported

2025-01-13 03:15

Platform

win7-20241010-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Orcus main payload

Description Indicator Process Target
N/A N/A N/A N/A

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\WindowsInput.exe C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.exe.config C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.InstallState C:\Windows\SysWOW64\WindowsInput.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File opened for modification C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File created C:\Program Files\winzip data\winzip.exe.config C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Program Files\winzip data\winzip.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files\winzip data\winzip.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2848 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
PID 2848 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
PID 2848 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
PID 2852 wrote to memory of 2752 N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
PID 2852 wrote to memory of 2752 N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
PID 2852 wrote to memory of 2752 N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
PID 2848 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2848 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2848 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2848 wrote to memory of 1456 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Program Files\winzip data\winzip.exe
PID 2848 wrote to memory of 1456 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Program Files\winzip data\winzip.exe
PID 2848 wrote to memory of 1456 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Program Files\winzip data\winzip.exe
PID 2356 wrote to memory of 1448 N/A C:\Windows\system32\taskeng.exe C:\Program Files\winzip data\winzip.exe
PID 2356 wrote to memory of 1448 N/A C:\Windows\system32\taskeng.exe C:\Program Files\winzip data\winzip.exe
PID 2356 wrote to memory of 1448 N/A C:\Windows\system32\taskeng.exe C:\Program Files\winzip data\winzip.exe
PID 1456 wrote to memory of 1440 N/A C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1456 wrote to memory of 1440 N/A C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1456 wrote to memory of 1440 N/A C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1456 wrote to memory of 1440 N/A C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1440 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1440 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1440 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1440 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe

"C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe"

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe

"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\medmod-z.cmdline"

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3DBD.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC3DBC.tmp"

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe" --install

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe"

C:\Program Files\winzip data\winzip.exe

"C:\Program Files\winzip data\winzip.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {D96BE172-75DD-4354-A3B8-5D3D9E03253B} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]

C:\Program Files\winzip data\winzip.exe

"C:\Program Files\winzip data\winzip.exe"

C:\Users\Admin\AppData\Local\Temp\winzip.exe

"C:\Users\Admin\AppData\Local\Temp\winzip.exe" /launchSelfAndExit "C:\Program Files\winzip data\winzip.exe" 1456 /protectFile

C:\Users\Admin\AppData\Local\Temp\winzip.exe

"C:\Users\Admin\AppData\Local\Temp\winzip.exe" /watchProcess "C:\Program Files\winzip data\winzip.exe" 1456 "/protectFile"

Network

Country Destination Domain Proto
N/A 192.168.10.13:7415 tcp
US 8.8.8.8:53 z3roxl33t.hopto.org udp
N/A 192.168.10.13:7415 tcp
N/A 192.168.10.13:7415 tcp
N/A 192.168.10.13:7415 tcp
N/A 192.168.10.13:7415 tcp

Files

memory/2848-0-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp

memory/2848-2-0x0000000000280000-0x000000000028E000-memory.dmp

memory/2848-1-0x00000000023F0000-0x000000000244C000-memory.dmp

memory/2848-3-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

memory/2848-4-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

\??\c:\Users\Admin\AppData\Local\Temp\medmod-z.cmdline

MD5 c9fe05243dda28bc8bb4c4684669df2b
SHA1 d7ee9f9eeedac8da8c8a716d5584cef916bc283f
SHA256 c433009924cfe64fb0be236f2875522217248a5c8de1186be8dbe83a31e30733
SHA512 0dac4187c7af02f09abf8dc71e72f40fb5aef66fbe6891e486e4326392e3627fe89497f824e95e95a6e7d064e65ae627a6dd9e1c91aad453274d9e36b97e504e

\??\c:\Users\Admin\AppData\Local\Temp\medmod-z.0.cs

MD5 250321226bbc2a616d91e1c82cb4ab2b
SHA1 7cffd0b2e9c842865d8961386ab8fcfac8d04173
SHA256 ef2707f83a0c0927cfd46b115641b9cae52a41123e4826515b9eeb561785218d
SHA512 bda59ca04cdf254f837f2cec6da55eff5c3d2af00da66537b9ebaa3601c502ae63772f082fd12663b63d537d2e03efe87a3b5746ef25e842aaf1c7d88245b4e1

memory/2852-10-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

\??\c:\Users\Admin\AppData\Local\Temp\CSC3DBC.tmp

MD5 7730887fcbb4f70ffcb752f259df67c9
SHA1 3cb701f3a38e474ed994940237c182a6a801e5db
SHA256 ff93de464b5478d66231e11e9cc6803b23ad99724b370814cb113636c16606d7
SHA512 97a788a1d6f2bf334687070ce678c56e2fe00b22ebfac8c5b9d47dee4aa1d994f8f24e133cbc944974cb46474b1a6b338ab06497d557097556cab88729119681

C:\Users\Admin\AppData\Local\Temp\RES3DBD.tmp

MD5 fb2d1ad2cb40fe16eac29d59e434ef7e
SHA1 34187981655531e5c87bb6e17a86a5674072fbdd
SHA256 f687d7fba1134d6c9c130f4284f459353719c223a2c930e64322693f65dd25b4
SHA512 d7a63665cd4794d1af46fc32a03cc5af351972e5f5022430d8bb09228ce15e9958c376caf81856660d5b75583163db04bde0988e87eb014b46d9a3f6a5bd5e86

memory/2852-17-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\medmod-z.dll

MD5 110a395d4a32b648267cbdd3abaef982
SHA1 38259e2e2e5709392a6b9cc9fabc29b7c976e494
SHA256 59474a7c1fb9528e1c75783246985a7fac08c8b6804c5f5be927d06cb9d133e9
SHA512 2f4481aae9fb002d6de6d966a51eb669584daed09090f9e74631cc778f1596d17e383a300240e26da3aa0be9896d1db646edd2c12f35ab3a1b77b71de0380b8a

memory/2848-19-0x0000000000860000-0x0000000000876000-memory.dmp

memory/2848-21-0x0000000000390000-0x00000000003A2000-memory.dmp

C:\Windows\SysWOW64\WindowsInput.exe

MD5 e6fcf516d8ed8d0d4427f86e08d0d435
SHA1 c7691731583ab7890086635cb7f3e4c22ca5e409
SHA256 8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512 c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

C:\Windows\SysWOW64\WindowsInput.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/2684-29-0x0000000001290000-0x000000000129C000-memory.dmp

memory/1604-33-0x0000000000280000-0x000000000028C000-memory.dmp

C:\Program Files\winzip data\winzip.exe

MD5 dc9238b0734a5ef282d6a1497fc5e730
SHA1 2cc7368ab3de9f2b8eb33c60d8e8592bc96c16fb
SHA256 b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6
SHA512 5cb90f8940e82557feb182861ccd59168c1e75e9eb9cf3a83541701503bee31ddecdaf4f61db275572cbfcb07c2ba7c85817e4226e13a836153bd9b435b44900

memory/1456-43-0x0000000000DF0000-0x0000000000EDA000-memory.dmp

memory/2848-44-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

memory/1456-45-0x0000000000290000-0x00000000002A2000-memory.dmp

memory/1456-46-0x0000000000DA0000-0x0000000000DEE000-memory.dmp

memory/1456-47-0x0000000000C80000-0x0000000000C98000-memory.dmp

memory/1456-48-0x0000000000BF0000-0x0000000000C00000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\winzip.exe

MD5 913967b216326e36a08010fb70f9dba3
SHA1 7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf
SHA256 8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
SHA512 c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

memory/1440-58-0x0000000001230000-0x0000000001238000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-13 03:13

Reported

2025-01-13 03:15

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Orcus main payload

Description Indicator Process Target
N/A N/A N/A N/A

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation C:\Program Files\winzip data\winzip.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\WindowsInput.exe C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.exe.config C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.InstallState C:\Windows\SysWOW64\WindowsInput.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File opened for modification C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File created C:\Program Files\winzip data\winzip.exe.config C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
N/A N/A C:\Program Files\winzip data\winzip.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Program Files\winzip data\winzip.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files\winzip data\winzip.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2440 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
PID 2440 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
PID 3276 wrote to memory of 4268 N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
PID 3276 wrote to memory of 4268 N/A C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
PID 2440 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2440 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2440 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Program Files\winzip data\winzip.exe
PID 2440 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe C:\Program Files\winzip data\winzip.exe
PID 1696 wrote to memory of 740 N/A C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1696 wrote to memory of 740 N/A C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 1696 wrote to memory of 740 N/A C:\Program Files\winzip data\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 740 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 740 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe
PID 740 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\winzip.exe C:\Users\Admin\AppData\Local\Temp\winzip.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe

"C:\Users\Admin\AppData\Local\Temp\b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6N.exe"

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe

"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ymykbw1w.cmdline"

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESDDED.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCDDEC.tmp"

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe" --install

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe"

C:\Program Files\winzip data\winzip.exe

"C:\Program Files\winzip data\winzip.exe"

C:\Program Files\winzip data\winzip.exe

"C:\Program Files\winzip data\winzip.exe"

C:\Users\Admin\AppData\Local\Temp\winzip.exe

"C:\Users\Admin\AppData\Local\Temp\winzip.exe" /launchSelfAndExit "C:\Program Files\winzip data\winzip.exe" 1696 /protectFile

C:\Users\Admin\AppData\Local\Temp\winzip.exe

"C:\Users\Admin\AppData\Local\Temp\winzip.exe" /watchProcess "C:\Program Files\winzip data\winzip.exe" 1696 "/protectFile"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
N/A 192.168.10.13:7415 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 z3roxl33t.hopto.org udp
N/A 192.168.10.13:7415 tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 z3roxl33t.hopto.org udp
N/A 192.168.10.13:7415 tcp
US 8.8.8.8:53 85.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 z3roxl33t.hopto.org udp
N/A 192.168.10.13:7415 tcp
US 8.8.8.8:53 z3roxl33t.hopto.org udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
N/A 192.168.10.13:7415 tcp
US 8.8.8.8:53 z3roxl33t.hopto.org udp

Files

memory/2440-0-0x00007FFDF74A5000-0x00007FFDF74A6000-memory.dmp

memory/2440-1-0x00007FFDF71F0000-0x00007FFDF7B91000-memory.dmp

memory/2440-2-0x000000001B790000-0x000000001B7EC000-memory.dmp

memory/2440-5-0x000000001B890000-0x000000001B89E000-memory.dmp

memory/2440-7-0x00007FFDF71F0000-0x00007FFDF7B91000-memory.dmp

memory/2440-6-0x000000001BED0000-0x000000001C39E000-memory.dmp

memory/2440-8-0x000000001C440000-0x000000001C4DC000-memory.dmp

\??\c:\Users\Admin\AppData\Local\Temp\ymykbw1w.cmdline

MD5 ebd57eddc86cb34cee429525db1d4397
SHA1 f33287c1d4516599a6a6fea12a6ebffc4b216d78
SHA256 6e2f6cc558700ff85269ccf564fef38f88ab489961f73dd89d71f68cc15f7d58
SHA512 a264540120d8a82caf366a680ce570e3ee7117035af23f0366d83fca83ab253d31081f2363b76f01e4e2011369a32ba4863ce477ad740a9af37b7eaa80455dee

\??\c:\Users\Admin\AppData\Local\Temp\ymykbw1w.0.cs

MD5 5adcb7ce5d7ce610cbe54782589576ec
SHA1 26f16111d34213b7e8e89b9aa52bb4ff0c93f823
SHA256 178efbba8b825b94770462f146752adb39d9769e943410b5cb9a728be7136318
SHA512 7638de8f2fab381fe53a8dacfce431e1b6ad250b02ac8f380b9d04a20f84952ead347a203c858044d54583f2464346f993a7d79bc2a41b2b05161fee065bc33b

memory/3276-14-0x00007FFDF71F0000-0x00007FFDF7B91000-memory.dmp

\??\c:\Users\Admin\AppData\Local\Temp\CSCDDEC.tmp

MD5 08834df5ee80e201d43fd90c00df7c6e
SHA1 834dd1e124e2242d4e65092a9560f24438f39d45
SHA256 3197f98628776e8e4eb62edcf418f5b2edd05d0ba5bf049d5362bc9469ff31d2
SHA512 0ef9e0fd05859a7ebbddd4816d7927d3bb8978f0c3bd614867abf2fa3026942be7d8eebbdf5f467227d90b6193944299567a440b06dea8150cf7930c96e98aa8

C:\Users\Admin\AppData\Local\Temp\RESDDED.tmp

MD5 f17c76dbde38a34ad4a541023b3b7be8
SHA1 76954f7749647230c05517ee954384e92df8ddb0
SHA256 a48d7a011ce1c139632314f49a4a0886fb709c0aca419aa98ca70baf1dad2066
SHA512 9542db8043a04645cb891f063bb3cb679722a8a7a5a1417c6f1b6f512a97536be3ffeee894a3456c3da0be14fe069f736fb4f2ca5b03b85d903ab06681b5a597

memory/3276-21-0x00007FFDF71F0000-0x00007FFDF7B91000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\ymykbw1w.dll

MD5 26ed7dd2d36e3607fcc040f4e696eca7
SHA1 e1c5cab9d01cec3b0d11a4c599caec339b6d64ab
SHA256 b606662e27fe9b15f852175081073a9ef0797f8739025e90be692a6fa71d2f1b
SHA512 16e67ba49311507a195720394411c5051ffa71f554c2d4240c6dc86dffbf04040292a0eef95163dc172d04e041cf2d94b6a9381f4b453c81d3c578dc002df924

memory/2440-23-0x000000001B8D0000-0x000000001B8E6000-memory.dmp

memory/2440-25-0x00000000010C0000-0x00000000010D2000-memory.dmp

memory/2440-26-0x000000001C500000-0x000000001C520000-memory.dmp

C:\Windows\SysWOW64\WindowsInput.exe

MD5 e6fcf516d8ed8d0d4427f86e08d0d435
SHA1 c7691731583ab7890086635cb7f3e4c22ca5e409
SHA256 8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512 c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

C:\Windows\SysWOW64\WindowsInput.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/836-40-0x0000000000100000-0x000000000010C000-memory.dmp

memory/836-41-0x00007FFDF3F03000-0x00007FFDF3F05000-memory.dmp

memory/836-42-0x0000000002290000-0x00000000022A2000-memory.dmp

memory/836-43-0x000000001AC00000-0x000000001AC3C000-memory.dmp

memory/3564-48-0x000000001AD10000-0x000000001AE1A000-memory.dmp

C:\Program Files\winzip data\winzip.exe

MD5 dc9238b0734a5ef282d6a1497fc5e730
SHA1 2cc7368ab3de9f2b8eb33c60d8e8592bc96c16fb
SHA256 b505f6e7fafa18347c284328726d1bb3060b79eabd93e5abd4e818304ad305d6
SHA512 5cb90f8940e82557feb182861ccd59168c1e75e9eb9cf3a83541701503bee31ddecdaf4f61db275572cbfcb07c2ba7c85817e4226e13a836153bd9b435b44900

memory/1696-65-0x00000000002A0000-0x000000000038A000-memory.dmp

memory/2440-66-0x00007FFDF71F0000-0x00007FFDF7B91000-memory.dmp

memory/1696-67-0x000000001ADF0000-0x000000001AE02000-memory.dmp

memory/1696-68-0x000000001B340000-0x000000001B38E000-memory.dmp

memory/1696-70-0x000000001B4E0000-0x000000001B4F8000-memory.dmp

memory/1696-71-0x000000001B850000-0x000000001BA12000-memory.dmp

memory/1696-72-0x000000001B630000-0x000000001B640000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\winzip.exe

MD5 913967b216326e36a08010fb70f9dba3
SHA1 7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf
SHA256 8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
SHA512 c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

memory/740-86-0x0000000000980000-0x0000000000988000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\winzip.exe.log

MD5 4eaca4566b22b01cd3bc115b9b0b2196
SHA1 e743e0792c19f71740416e7b3c061d9f1336bf94
SHA256 34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
SHA512 bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1