Malware Analysis Report

2025-03-15 06:50

Sample ID 240106-bjz3qsfba4
Target ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74
SHA256 ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74
Tags
orcus rat spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74

Threat Level: Known bad

The file ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74 was found to be: Known bad.

Malicious Activity Summary

orcus rat spyware stealer

Orcus

Orcus main payload

Orcurs Rat Executable

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

NTFS ADS

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-06 01:11

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-06 01:11

Reported

2024-01-06 01:13

Platform

win10v2004-20231222-en

Max time kernel

7s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe"

Signatures

Orcus

rat spyware stealer 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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe

"C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe"

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

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

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\RES6C28.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC6C27.tmp"

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\kxntiiyf.cmdline"

C:\Windows\SysWOW64\WindowsInput.exe

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

C:\Windows\SysWOW64\WindowsInput.exe

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

C:\Program Files\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.exe"

C:\Users\Admin\AppData\Roaming\java.exe

"C:\Users\Admin\AppData\Roaming\java.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 2320 "/protectFile"

C:\Users\Admin\AppData\Roaming\java.exe

"C:\Users\Admin\AppData\Roaming\java.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 2320 /protectFile

C:\Program Files\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
N/A 10.0.2.15:4444 tcp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
N/A 10.0.2.15:4444 tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
N/A 10.0.2.15:4444 tcp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
GB 96.17.178.176:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
N/A 10.0.2.15:4444 tcp
GB 96.17.178.176:80 tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
GB 96.17.178.176:80 tcp
NL 52.111.243.31:443 tcp

Files

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

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/2960-14-0x000000001B3C0000-0x000000001B41C000-memory.dmp

memory/2960-17-0x000000001B580000-0x000000001B58E000-memory.dmp

memory/2960-18-0x00007FFA582E0000-0x00007FFA58C81000-memory.dmp

memory/2960-20-0x000000001BFF0000-0x000000001C08C000-memory.dmp

memory/2960-19-0x000000001BA80000-0x000000001BF4E000-memory.dmp

memory/2960-13-0x0000000000B30000-0x0000000000B40000-memory.dmp

memory/2960-12-0x00007FFA582E0000-0x00007FFA58C81000-memory.dmp

memory/2960-34-0x000000001C6A0000-0x000000001C6B6000-memory.dmp

memory/2960-39-0x000000001CA90000-0x000000001CAF2000-memory.dmp

memory/2960-38-0x0000000000EB0000-0x0000000000EB8000-memory.dmp

memory/2960-42-0x000000001CBF0000-0x000000001CC0E000-memory.dmp

memory/2960-41-0x000000001D9B0000-0x000000001DAA0000-memory.dmp

memory/2960-43-0x000000001DAB0000-0x000000001DAF9000-memory.dmp

memory/2960-40-0x000000001D3F0000-0x000000001D9AA000-memory.dmp

memory/2960-37-0x0000000000B90000-0x0000000000B98000-memory.dmp

memory/2960-36-0x0000000000E20000-0x0000000000E32000-memory.dmp

memory/2960-44-0x0000000000B30000-0x0000000000B40000-memory.dmp

memory/2960-45-0x000000001DB90000-0x000000001DC00000-memory.dmp

memory/3232-26-0x00000000022D0000-0x00000000022E0000-memory.dmp

memory/2960-46-0x0000000000B30000-0x0000000000B40000-memory.dmp

memory/400-62-0x00000000007A0000-0x00000000007AC000-memory.dmp

memory/400-64-0x0000000001080000-0x0000000001092000-memory.dmp

memory/400-66-0x000000001B3F0000-0x000000001B42C000-memory.dmp

memory/400-65-0x00000000029B0000-0x00000000029C0000-memory.dmp

memory/400-63-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/400-70-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/3752-72-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/3752-73-0x000000001A920000-0x000000001AA2A000-memory.dmp

memory/2960-48-0x000000001DE60000-0x000000001DE80000-memory.dmp

memory/2960-90-0x00007FFA582E0000-0x00007FFA58C81000-memory.dmp

memory/2320-92-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/2320-93-0x000000001BCA0000-0x000000001BCB0000-memory.dmp

memory/2320-91-0x0000000000EA0000-0x0000000000F8E000-memory.dmp

memory/2320-94-0x00000000032C0000-0x00000000032D2000-memory.dmp

memory/2960-89-0x00007FFA582E0000-0x00007FFA58C81000-memory.dmp

memory/2320-97-0x000000001C310000-0x000000001C35E000-memory.dmp

memory/2320-99-0x000000001C6A0000-0x000000001C6B8000-memory.dmp

memory/2320-100-0x000000001C9F0000-0x000000001CBB2000-memory.dmp

memory/2320-102-0x000000001C0F0000-0x000000001C100000-memory.dmp

memory/1200-118-0x00000000004B0000-0x00000000004B8000-memory.dmp

memory/1200-119-0x0000000074440000-0x0000000074BF0000-memory.dmp

memory/1200-123-0x0000000074440000-0x0000000074BF0000-memory.dmp

memory/2592-124-0x0000000074440000-0x0000000074BF0000-memory.dmp

memory/3136-113-0x000000001B830000-0x000000001B840000-memory.dmp

memory/2320-105-0x000000001BCA0000-0x000000001BCB0000-memory.dmp

memory/3136-101-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/3752-125-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/3136-127-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/2320-128-0x00007FFA547C0000-0x00007FFA55281000-memory.dmp

memory/2320-129-0x000000001BCA0000-0x000000001BCB0000-memory.dmp

memory/2320-130-0x000000001BCA0000-0x000000001BCB0000-memory.dmp

memory/2592-131-0x0000000074440000-0x0000000074BF0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-06 01:11

Reported

2024-01-06 01:13

Platform

win7-20231129-en

Max time kernel

7s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus main payload

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

Executes dropped EXE

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

Enumerates physical storage devices

NTFS ADS

Description Indicator Process Target
File created C:\Users\Admin\AppData\Local\Temp\>2K9 B5:AB>2K9 4>:C<5=B.bat C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe N/A
File opened for modification C:\Users\Admin\AppData\Local\Temp\>2K9 B5:AB>2K9 4>:C<5=B.bat C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe

"C:\Users\Admin\AppData\Local\Temp\ac9b33b420e2e43dd32353bfdbd518be729cd01f94e6c554acc806c53bbf9d74.exe"

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\RES2CCC.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC2CCB.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\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {EC781C57-DFF9-4334-9E6A-80EE56003F5F} S-1-5-21-3470981204-343661084-3367201002-1000:GLTGRJAG\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\java.exe

"C:\Users\Admin\AppData\Roaming\java.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 1084 "/protectFile"

C:\Users\Admin\AppData\Roaming\java.exe

"C:\Users\Admin\AppData\Roaming\java.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 1084 /protectFile

C:\Program Files\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.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\apivk0qh.cmdline"

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

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

Network

Country Destination Domain Proto
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp
N/A 10.0.2.15:4444 tcp

Files

memory/2564-8-0x0000000000280000-0x000000000028E000-memory.dmp

memory/2564-7-0x0000000000AF0000-0x0000000000B4C000-memory.dmp

memory/2564-10-0x0000000002130000-0x00000000021B0000-memory.dmp

memory/2564-15-0x000007FEF5340000-0x000007FEF5CDD000-memory.dmp

memory/2564-24-0x0000000000B70000-0x0000000000B86000-memory.dmp

memory/2564-28-0x0000000000AE0000-0x0000000000AE8000-memory.dmp

memory/2564-27-0x0000000000540000-0x0000000000548000-memory.dmp

memory/2564-26-0x00000000002B0000-0x00000000002C2000-memory.dmp

memory/1748-38-0x00000000003E0000-0x00000000003EC000-memory.dmp

memory/1748-39-0x000007FEED140000-0x000007FEEDB2C000-memory.dmp

memory/2564-32-0x0000000002130000-0x00000000021B0000-memory.dmp

memory/2172-44-0x0000000000CD0000-0x0000000000CDC000-memory.dmp

memory/2172-46-0x0000000019510000-0x0000000019590000-memory.dmp

memory/2172-45-0x000007FEEC750000-0x000007FEED13C000-memory.dmp

memory/1748-42-0x000007FEED140000-0x000007FEEDB2C000-memory.dmp

memory/2564-57-0x000007FEF5340000-0x000007FEF5CDD000-memory.dmp

memory/1084-58-0x000000001AF70000-0x000000001AFF0000-memory.dmp

memory/1084-56-0x000007FEEC750000-0x000007FEED13C000-memory.dmp

memory/1084-55-0x0000000000D70000-0x0000000000E5E000-memory.dmp

memory/1084-61-0x0000000000D00000-0x0000000000D4E000-memory.dmp

memory/1084-62-0x0000000000D50000-0x0000000000D68000-memory.dmp

memory/1084-63-0x0000000002380000-0x0000000002390000-memory.dmp

memory/2720-74-0x000007FEEC750000-0x000007FEED13C000-memory.dmp

memory/956-75-0x0000000000130000-0x0000000000138000-memory.dmp

memory/2720-77-0x000000001B010000-0x000000001B090000-memory.dmp

memory/956-80-0x0000000074170000-0x000000007485E000-memory.dmp

memory/2972-81-0x0000000074170000-0x000000007485E000-memory.dmp

memory/956-76-0x0000000074170000-0x000000007485E000-memory.dmp

memory/1084-64-0x000000001AF70000-0x000000001AFF0000-memory.dmp

memory/2564-9-0x000007FEF5340000-0x000007FEF5CDD000-memory.dmp

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

MD5 b0192788dc200e0fbb86387a2777fb7c
SHA1 a72bb0981cbff3e34fcef2d59ed768c289d97679
SHA256 06bcc57616dda2c242ef62c6c1ed600899205a84bf8b9f80559055d2632edbde
SHA512 e6b444f41e31a694556cff5b5ec41e045952b2307bb87b3d95da3662ff622b096280dc0fb0ca55e0f7cec06b28b4efb097bb226b0a9e894b648d3d0c0202ebb4

\Users\Admin\AppData\Local\Temp\menu.exe.exe

MD5 45c45ace2d5f711ba816261e9214a8c5
SHA1 3fa04e651792277f0d4d1df40ba658dedf86938a
SHA256 e7f858e5b433ee5e797ec9f5068898c2241f961a71a3e0337decec0ae6131ada
SHA512 0feaa2c2d4069c83503e6338a87be6d23ca70a3e16520ae53389c087ecc6ac2be607b7f5f1b3acad19b265946c36accf473fc75f3e0eb0ccb354e84a6cdd6186

memory/2720-82-0x000007FEEC750000-0x000007FEED13C000-memory.dmp

memory/2172-83-0x000007FEEC750000-0x000007FEED13C000-memory.dmp

memory/1084-84-0x000007FEEC750000-0x000007FEED13C000-memory.dmp

memory/1084-85-0x000000001AF70000-0x000000001AFF0000-memory.dmp

memory/1084-86-0x000000001AF70000-0x000000001AFF0000-memory.dmp

memory/2972-87-0x0000000074170000-0x000000007485E000-memory.dmp