orcus | 9b52478f24a02f622d71fc14c484e03dd240f0ac0b9166e0b58defa0edfc0404

Resubmissions

10-02-2025 03:23

250210-dxrdvszrgv 10

10-02-2025 03:16

250210-dspdpszqhw 10

Analysis

max time kernel
145s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-02-2025 03:23

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General

Target

OrcusRAT.exe
Size

16.3MB
MD5

bec4a5b0b6db81ce39d6f2e3721911e3
SHA1

4d5cff870c8012f0978ecb6d4a579dc84a4f2ad3
SHA256

9b52478f24a02f622d71fc14c484e03dd240f0ac0b9166e0b58defa0edfc0404
SHA512

8990173964cd8ff719ac3f524e0ba6c5a99c815ecf6549cf67b126e7d581b8a2a8bc1432fc7d844f5e4b590b3554ee320370968be3fc5b7c623d3e8b29d8b1c6
SSDEEP

196608:CI6JYPVMxrZbapOU4SxTtn52dQ2CIierfBrec1CoHktdsXNPIawd4D3jtg4neJx0:C9JYaxrckZxQ2I431HHiWE63ju4en

Score

10^/10

orcus xworm discovery execution persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

Version

5.0

127.0.0.1:32934

skidderhay-32934.portmap.host:32934

Mutex

lbyKzAzevfD9uOTG

Attributes

Install_directory
%ProgramData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/files/0x000700000001211a-2.dat	family_xworm
behavioral1/memory/2088-8-0x0000000000D00000-0x0000000000D12000-memory.dmp	family_xworm
behavioral1/memory/1864-54-0x0000000000810000-0x0000000000822000-memory.dmp	family_xworm
behavioral1/memory/848-57-0x0000000000B20000-0x0000000000B32000-memory.dmp	family_xworm

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral1/files/0x00080000000173da-10.dat	orcus
behavioral1/memory/1796-15-0x00000000013D0000-0x000000000240E000-memory.dmp	orcus

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2728	powershell.exe
2844	powershell.exe
2616	powershell.exe
1968	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\program.lnk	23232.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\program.lnk	23232.exe

Executes dropped EXE 4 IoCs

pid	Process
2088	23232.exe
1796	Orcus.Administration.exe
1864	program
848	program

Loads dropped DLL 7 IoCs

pid	Process
2388	OrcusRAT.exe
2388	OrcusRAT.exe
1260	WerFault.exe
1260	WerFault.exe
1260	WerFault.exe
1260	WerFault.exe
1260	WerFault.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\program = "C:\\ProgramData\\program"	23232.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1260	1796	WerFault.exe	31

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	Orcus.Administration.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OrcusRAT.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2728	powershell.exe
2844	powershell.exe
2616	powershell.exe
1968	powershell.exe
2088	23232.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2088	23232.exe
Token: SeDebugPrivilege	2728	powershell.exe
Token: SeDebugPrivilege	2844	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	1968	powershell.exe
Token: SeDebugPrivilege	2088	23232.exe
Token: SeDebugPrivilege	1864	program
Token: SeDebugPrivilege	848	program

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2088	23232.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2088	2388	OrcusRAT.exe	30
PID 2388 wrote to memory of 2088	2388	OrcusRAT.exe	30
PID 2388 wrote to memory of 2088	2388	OrcusRAT.exe	30
PID 2388 wrote to memory of 2088	2388	OrcusRAT.exe	30
PID 2388 wrote to memory of 1796	2388	OrcusRAT.exe	31
PID 2388 wrote to memory of 1796	2388	OrcusRAT.exe	31
PID 2388 wrote to memory of 1796	2388	OrcusRAT.exe	31
PID 2388 wrote to memory of 1796	2388	OrcusRAT.exe	31
PID 1796 wrote to memory of 1260	1796	Orcus.Administration.exe	32
PID 1796 wrote to memory of 1260	1796	Orcus.Administration.exe	32
PID 1796 wrote to memory of 1260	1796	Orcus.Administration.exe	32
PID 1796 wrote to memory of 1260	1796	Orcus.Administration.exe	32
PID 2088 wrote to memory of 2728	2088	23232.exe	33
PID 2088 wrote to memory of 2728	2088	23232.exe	33
PID 2088 wrote to memory of 2728	2088	23232.exe	33
PID 2088 wrote to memory of 2844	2088	23232.exe	35
PID 2088 wrote to memory of 2844	2088	23232.exe	35
PID 2088 wrote to memory of 2844	2088	23232.exe	35
PID 2088 wrote to memory of 2616	2088	23232.exe	37
PID 2088 wrote to memory of 2616	2088	23232.exe	37
PID 2088 wrote to memory of 2616	2088	23232.exe	37
PID 2088 wrote to memory of 1968	2088	23232.exe	39
PID 2088 wrote to memory of 1968	2088	23232.exe	39
PID 2088 wrote to memory of 1968	2088	23232.exe	39
PID 2088 wrote to memory of 2888	2088	23232.exe	41
PID 2088 wrote to memory of 2888	2088	23232.exe	41
PID 2088 wrote to memory of 2888	2088	23232.exe	41
PID 1392 wrote to memory of 1864	1392	taskeng.exe	46
PID 1392 wrote to memory of 1864	1392	taskeng.exe	46
PID 1392 wrote to memory of 1864	1392	taskeng.exe	46
PID 1392 wrote to memory of 848	1392	taskeng.exe	47
PID 1392 wrote to memory of 848	1392	taskeng.exe	47
PID 1392 wrote to memory of 848	1392	taskeng.exe	47

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\OrcusRAT.exe
"C:\Users\Admin\AppData\Local\Temp\OrcusRAT.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\23232.exe
  "C:\Users\Admin\AppData\Local\Temp\23232.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2088
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\23232.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2728
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '23232.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2844
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\program'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2616
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'program'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1968
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "program" /tr "C:\ProgramData\program"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2888
- C:\Users\Admin\AppData\Local\Temp\Orcus.Administration.exe
  "C:\Users\Admin\AppData\Local\Temp\Orcus.Administration.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1796
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1796 -s 544
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1260

C:\Windows\system32\taskeng.exe
taskeng.exe {198FA02E-3F57-4E1F-A872-06BF061A63D1} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1392
- C:\ProgramData\program
  C:\ProgramData\program
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1864
- C:\ProgramData\program
  C:\ProgramData\program
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
7379823d6d13ede1dc3274e1ad8eabf9

SHA1
1729159c4f7c7512100b39b6b68d570e5d5ebfe1

SHA256
3487cacf28912806dd18b28f6a47bef183c67b7174a2fbca61aebff4cb2ca184

SHA512
c278e8f138da93cb205f08cfca7e492622d10514d2d8b6159ed6239480406951134cc6f3aebf472f2ff468830e1d5220428a185b517e6b1c254119a704e06482

Download Submit
\Users\Admin\AppData\Local\Temp\23232.exe

Filesize
43KB

MD5
eb6c2368d07caa4598c0f72272771459

SHA1
1ea1f56535c3d3f9b5842903bb7c74acbfc9cba6

SHA256
a6924534ab62ca1d4b1ba033346761aa1d8146f969ca1be80e9c94587a9569aa

SHA512
905d2bf25b2c92293002c46d711705888c892aa94a39440cf25e367ecf2265a0c4ccb8e5c778acc00e7c3bd5bf0d10957efd7fc8d2bc73d60f0f0eb365da4dd6

Download Submit
\Users\Admin\AppData\Local\Temp\Orcus.Administration.exe

Filesize
16.2MB

MD5
a6347e4e194adb6d2a3fae52598d8cdd

SHA1
aa06c496c20d6e04142d4a5205a032680a452a0d

SHA256
911e3e95efddbae9d1c2f4b04027567c76823116755097b5868b7241c7e30cbc

SHA512
2ee24604c0edbc09096e2344ca6c1f74b1067b9aff7f077d0b4e42cd8f51dd1116e98016e34f0a1d951fcdbc8bfed33b1709a9692ba95b3ea3cd84d9ce080922

Download Submit
memory/848-57-0x0000000000B20000-0x0000000000B32000-memory.dmp

Filesize
72KB

Download
memory/1796-15-0x00000000013D0000-0x000000000240E000-memory.dmp

Filesize
16.2MB

Download
memory/1864-54-0x0000000000810000-0x0000000000822000-memory.dmp

Filesize
72KB

Download
memory/2088-49-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp

Filesize
9.9MB

Download
memory/2088-48-0x000007FEF5253000-0x000007FEF5254000-memory.dmp

Filesize
4KB

Download
memory/2088-50-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp

Filesize
9.9MB

Download
memory/2088-8-0x0000000000D00000-0x0000000000D12000-memory.dmp

Filesize
72KB

Download
memory/2088-6-0x000007FEF5253000-0x000007FEF5254000-memory.dmp

Filesize
4KB

Download
memory/2728-26-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2728-25-0x000000001B620000-0x000000001B902000-memory.dmp

Filesize
2.9MB

Download
memory/2844-32-0x000000001B770000-0x000000001BA52000-memory.dmp

Filesize
2.9MB

Download
memory/2844-33-0x00000000005F0000-0x00000000005F8000-memory.dmp

Filesize
32KB

Download