orcus | 67186135fcb9c521054eafaeab47b5c6c92f25a97c35f8178bee5778e4d45636

Analysis

max time kernel
150s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
01/04/2025, 08:04

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General

Target

NEGR.exe
Size

907KB
MD5

c37aede530770e4960f21ca09f3a8e1c
SHA1

588a47f35d6c90ed47c433da4fdb35309cb8f166
SHA256

67186135fcb9c521054eafaeab47b5c6c92f25a97c35f8178bee5778e4d45636
SHA512

0f880912f868d7a678e01fe6f7ba09889a9d465bb033e9fc5993f59a5144b8c7b75cc1009c000f6d3f3a584d3954c9beb4ce938bc80b1b2aebe78f139dd65dc4
SSDEEP

24576:N3s4MROxnFj3G73MJJXRrZlI0AilFEvxHiWB:N3/Mi1kOhrZlI0AilFEvxHi

Score

10^/10

orcus negr discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

negr

213.209.143.58:2095

Mutex

aab067bbecf6478ca540d713fe8e0084

Attributes

autostart_method
Disable
enable_keylogger
true
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
Orcus
watchdog_path
AppData\OrcusWatchdog.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000240c9-31.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral1/files/0x00080000000240c9-31.dat	orcus
behavioral1/memory/1764-42-0x0000000000190000-0x0000000000278000-memory.dmp	orcus

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	NEGR.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	Orcus.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	OrcusWatchdog.exe

Executes dropped EXE 4 IoCs

pid	Process
1764	Orcus.exe
3596	Orcus.exe
4888	OrcusWatchdog.exe
3184	OrcusWatchdog.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	NEGR.exe
File created	C:\Windows\assembly\Desktop.ini	NEGR.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Orcus\Orcus.exe	NEGR.exe
File opened for modification	C:\Program Files\Orcus\Orcus.exe	NEGR.exe
File created	C:\Program Files\Orcus\Orcus.exe.config	NEGR.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	NEGR.exe
File opened for modification	C:\Windows\assembly	NEGR.exe
File created	C:\Windows\assembly\Desktop.ini	NEGR.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OrcusWatchdog.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OrcusWatchdog.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1764	Orcus.exe
1764	Orcus.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
3184	OrcusWatchdog.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe
1764	Orcus.exe
3184	OrcusWatchdog.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1764	Orcus.exe
Token: SeDebugPrivilege	4888	OrcusWatchdog.exe
Token: SeDebugPrivilege	3184	OrcusWatchdog.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1764	Orcus.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 2984	684	NEGR.exe	88
PID 684 wrote to memory of 2984	684	NEGR.exe	88
PID 2984 wrote to memory of 2392	2984	csc.exe	91
PID 2984 wrote to memory of 2392	2984	csc.exe	91
PID 684 wrote to memory of 1764	684	NEGR.exe	92
PID 684 wrote to memory of 1764	684	NEGR.exe	92
PID 1764 wrote to memory of 4888	1764	Orcus.exe	96
PID 1764 wrote to memory of 4888	1764	Orcus.exe	96
PID 1764 wrote to memory of 4888	1764	Orcus.exe	96
PID 4888 wrote to memory of 3184	4888	OrcusWatchdog.exe	97
PID 4888 wrote to memory of 3184	4888	OrcusWatchdog.exe	97
PID 4888 wrote to memory of 3184	4888	OrcusWatchdog.exe	97

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\NEGR.exe
"C:\Users\Admin\AppData\Local\Temp\NEGR.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:684
- 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\anectqq1.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2984
- - 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\RES9183.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC9182.tmp"
    3⤵
    PID:2392
- C:\Program Files\Orcus\Orcus.exe
  "C:\Program Files\Orcus\Orcus.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
    "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 1764 /protectFile
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4888
  - - C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
      "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 1764 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3184

C:\Program Files\Orcus\Orcus.exe
"C:\Program Files\Orcus\Orcus.exe"
1⤵
- Executes dropped EXE
PID:3596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\Orcus\Orcus.exe

Filesize
907KB

MD5
c37aede530770e4960f21ca09f3a8e1c

SHA1
588a47f35d6c90ed47c433da4fdb35309cb8f166

SHA256
67186135fcb9c521054eafaeab47b5c6c92f25a97c35f8178bee5778e4d45636

SHA512
0f880912f868d7a678e01fe6f7ba09889a9d465bb033e9fc5993f59a5144b8c7b75cc1009c000f6d3f3a584d3954c9beb4ce938bc80b1b2aebe78f139dd65dc4

Download Submit
C:\Program Files\Orcus\Orcus.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OrcusWatchdog.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES9183.tmp

Filesize
1KB

MD5
d15fbb0834d467b960b6dd847be47a98

SHA1
93b495b625d662b2d40b7f1be2e23a241a2bb72a

SHA256
206efdcb0bdbb22390cae31fa42ba3c7d1d00287a479f757c549466bee3a8c7c

SHA512
1dd293cbb5d09e62b5b3e5a00abeaaf0445723c87ded3433b5550e4130b6870c23865d478b5d7e2b290e4cdfcf3507ebc06af919be62262720c9448106da1e39

Download Submit
C:\Users\Admin\AppData\Local\Temp\anectqq1.dll

Filesize
76KB

MD5
5ce38375e9f505b73e685756bce7cd3d

SHA1
9b586cb49e80ed68e687c6e7e60768cb5e6c1aa3

SHA256
eb6f1fb6c491dc92e3840776667a34678a108aad980f9482ff94bac909458fea

SHA512
afa5300a86becaf417c43ca5aec7d102f8de729865df8b128c9808cd7bd739312f514d663d3058fed228fe1e7fc4af17ed0439eea0d2ab7b3e6adfa69da1b7f9

Download Submit
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSC9182.tmp

Filesize
676B

MD5
8d793d2b96e5881b6f24035b4356baea

SHA1
591103fe2e21d0c84576037426b6640ef8218ae9

SHA256
f1d41de671bae028bce07ee21cd162387994394e2dc2f4041f86b0415effa895

SHA512
63cce14a2c8f558f7a2de72f17b0589358281c3aed001a2df75efba7a11d570bfcc143c1472d7df2c56abf536d522f0ea9c79906903229418c170b05a6d48f6f

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\anectqq1.0.cs

Filesize
208KB

MD5
351f1b86897ad95c8f25f07bde436b27

SHA1
e3d3eae58e2ea3ff31d23348eafb7e190bf36f74

SHA256
96702e4f0b014441dc34ff9eac3164b15fe0151dccd92525e3e0f563b37f4469

SHA512
84f7dd30d0bbf16a385b4bf76a72eea5bca849e928a6a6d9b928a3c897a2b966494d8beeefdb8a8cab1c6c63d4bc4cde84a9a700c4e901588dd99195f86b5ef7

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\anectqq1.cmdline

Filesize
349B

MD5
e14232efe3283d5f2c0db506f4f18190

SHA1
a3de433f845785477fc77e0621b2570e20fce1af

SHA256
c290b92d5e009f82fc2afa67fe87dc90a89d06a3dadb08a918e78f9ac3b71b71

SHA512
1b256d9932cfd971117e64b79b54cb9340486ecf1ddafb2d482dd368408b611d485fc399a0a22d5b0923f4f1949075db14c9deb05a3b2494a08caa9f2fafa508

Download Submit
memory/684-5-0x000000001C000000-0x000000001C00E000-memory.dmp

Filesize
56KB

Download
memory/684-25-0x000000001BD70000-0x000000001BD82000-memory.dmp

Filesize
72KB

Download
memory/684-8-0x00007FFFB02F0000-0x00007FFFB0C91000-memory.dmp

Filesize
9.6MB

Download
memory/684-1-0x00007FFFB02F0000-0x00007FFFB0C91000-memory.dmp

Filesize
9.6MB

Download
memory/684-23-0x000000001D110000-0x000000001D126000-memory.dmp

Filesize
88KB

Download
memory/684-7-0x000000001CA50000-0x000000001CAEC000-memory.dmp

Filesize
624KB

Download
memory/684-0-0x00007FFFB05A5000-0x00007FFFB05A6000-memory.dmp

Filesize
4KB

Download
memory/684-6-0x000000001C4E0000-0x000000001C9AE000-memory.dmp

Filesize
4.8MB

Download
memory/684-2-0x000000001BE10000-0x000000001BE6C000-memory.dmp

Filesize
368KB

Download
memory/684-41-0x00007FFFB02F0000-0x00007FFFB0C91000-memory.dmp

Filesize
9.6MB

Download
memory/1764-44-0x0000000000AF0000-0x0000000000B3E000-memory.dmp

Filesize
312KB

Download
memory/1764-70-0x000000001C5E0000-0x000000001C6EA000-memory.dmp

Filesize
1.0MB

Download
memory/1764-48-0x000000001B6C0000-0x000000001B882000-memory.dmp

Filesize
1.8MB

Download
memory/1764-43-0x0000000000AD0000-0x0000000000AE2000-memory.dmp

Filesize
72KB

Download
memory/1764-45-0x000000001AE70000-0x000000001AE88000-memory.dmp

Filesize
96KB

Download
memory/1764-72-0x00007FFFACB93000-0x00007FFFACB95000-memory.dmp

Filesize
8KB

Download
memory/1764-46-0x000000001B4F0000-0x000000001B500000-memory.dmp

Filesize
64KB

Download
memory/1764-69-0x000000001C490000-0x000000001C4CC000-memory.dmp

Filesize
240KB

Download
memory/1764-42-0x0000000000190000-0x0000000000278000-memory.dmp

Filesize
928KB

Download
memory/1764-40-0x00007FFFACB93000-0x00007FFFACB95000-memory.dmp

Filesize
8KB

Download
memory/1764-68-0x000000001C430000-0x000000001C442000-memory.dmp

Filesize
72KB

Download
memory/2984-21-0x00007FFFB02F0000-0x00007FFFB0C91000-memory.dmp

Filesize
9.6MB

Download
memory/2984-14-0x00007FFFB02F0000-0x00007FFFB0C91000-memory.dmp

Filesize
9.6MB

Download
memory/4888-62-0x0000000000540000-0x0000000000548000-memory.dmp

Filesize
32KB

Download