orcus | a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31-07-2024 01:19

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General

Target

a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
Size

5.0MB
MD5

93ad1a38b740881308f9492b58087be4
SHA1

f10d052b2ad88d1dbd18106e905a8d2bdd25beb8
SHA256

a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4
SHA512

2bc31e6aceb9f1b0742df897a06460eaed766bd024093e1da7e5f5e4d1ad3c68744131cc2f419f0b330ae08b884c227582a24b00a76045333ef7099906c13eee
SSDEEP

24576:mBB4MROxnFE3viyrrcI0AilFEvxHPloo25+G7v/6:mQMiuqyrrcI0AilFEvxHP65+Un

Score

10^/10

orcus discovery persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

192.168.237.51:10135

Mutex

db01bc20e2f0413a9aa19ef1aa8b967e

Attributes

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

Signatures

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

Orcus main payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x0007000000019080-31.dat	family_orcus

Orcurs Rat Executable 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2668-1-0x0000000001060000-0x000000000116E000-memory.dmp	orcus
behavioral1/files/0x0007000000019080-31.dat	orcus
behavioral1/memory/1420-37-0x0000000000890000-0x000000000099E000-memory.dmp	orcus

Executes dropped EXE 6 IoCs

Processes:

WindowsInput.exeWindowsInput.exeOrcus.execncmd.execncmd.exeOrcus.exe

pid	Process
2872	WindowsInput.exe
1044	WindowsInput.exe
1420	Orcus.exe
1276	cncmd.exe
2880	cncmd.exe
1740	Orcus.exe

Loads dropped DLL 3 IoCs

Processes:

a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exeOrcus.exe

pid	Process
2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
1420	Orcus.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Orcus.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files (x86)\\Orcus\\Orcus.exe\""	Orcus.exe

Drops file in System32 directory 3 IoCs

Processes:

a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exeWindowsInput.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe

Drops file in Program Files directory 3 IoCs

Processes:

a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe

description	ioc	Process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.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 5 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

Processes:

a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exeOrcus.execncmd.exeOrcus.execncmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cncmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cncmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

Orcus.execncmd.exe

pid	Process
1420	Orcus.exe
1420	Orcus.exe
2880	cncmd.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe
1420	Orcus.exe
2880	cncmd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Orcus.execncmd.execncmd.exe

description	pid	Process
Token: SeDebugPrivilege	1420	Orcus.exe
Token: SeDebugPrivilege	1276	cncmd.exe
Token: SeDebugPrivilege	2880	cncmd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Orcus.exe

pid	Process
1420	Orcus.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exeOrcus.execncmd.exetaskeng.exe

description	pid	Process	procid_target
PID 2668 wrote to memory of 2872	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	31
PID 2668 wrote to memory of 2872	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	31
PID 2668 wrote to memory of 2872	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	31
PID 2668 wrote to memory of 2872	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	31
PID 2668 wrote to memory of 1420	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	33
PID 2668 wrote to memory of 1420	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	33
PID 2668 wrote to memory of 1420	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	33
PID 2668 wrote to memory of 1420	2668	a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe	33
PID 1420 wrote to memory of 1276	1420	Orcus.exe	35
PID 1420 wrote to memory of 1276	1420	Orcus.exe	35
PID 1420 wrote to memory of 1276	1420	Orcus.exe	35
PID 1420 wrote to memory of 1276	1420	Orcus.exe	35
PID 1276 wrote to memory of 2880	1276	cncmd.exe	36
PID 1276 wrote to memory of 2880	1276	cncmd.exe	36
PID 1276 wrote to memory of 2880	1276	cncmd.exe	36
PID 1276 wrote to memory of 2880	1276	cncmd.exe	36
PID 2008 wrote to memory of 1740	2008	taskeng.exe	37
PID 2008 wrote to memory of 1740	2008	taskeng.exe	37
PID 2008 wrote to memory of 1740	2008	taskeng.exe	37
PID 2008 wrote to memory of 1740	2008	taskeng.exe	37

C:\Users\Admin\AppData\Local\Temp\a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe
"C:\Users\Admin\AppData\Local\Temp\a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2872
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Users\Admin\AppData\Roaming\cncmd.exe
    "C:\Users\Admin\AppData\Roaming\cncmd.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 1420 /protectFile
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1276
  - - C:\Users\Admin\AppData\Roaming\cncmd.exe
      "C:\Users\Admin\AppData\Roaming\cncmd.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 1420 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2880

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:1044

C:\Windows\system32\taskeng.exe
taskeng.exe {19A1240A-CBCF-4F61-84E5-136B0BD3ECEC} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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:\Program Files (x86)\Orcus\Orcus.exe

Filesize
5.0MB

MD5
93ad1a38b740881308f9492b58087be4

SHA1
f10d052b2ad88d1dbd18106e905a8d2bdd25beb8

SHA256
a96b129e94f234a2a5c30d344c8f25c23e76e3e2b3d2c20ea608b46bb9f7f2b4

SHA512
2bc31e6aceb9f1b0742df897a06460eaed766bd024093e1da7e5f5e4d1ad3c68744131cc2f419f0b330ae08b884c227582a24b00a76045333ef7099906c13eee

Download Submit
C:\Users\Admin\AppData\Roaming\Orcus\err_db01bc20e2f0413a9aa19ef1aa8b967e.dat

Filesize
1KB

MD5
6087b0f2c921c35fda28b607d998a3bb

SHA1
e214e5445afb65470095f65e5dba34772dfa6838

SHA256
ffb1b966086b8d2998d3df57d8505af043b70fa471faa42caf0b8a117eb0ce3d

SHA512
4414af5cad249d82ce0cf15ffd18a6057b9a96e259ccdd3200caed079574392613d7359828b1847f07e206c2e11bbb9abfaded13937ddabf8dd19a37c2f1e3c3

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

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/1044-24-0x0000000000300000-0x000000000030C000-memory.dmp

Filesize
48KB

Download
memory/1276-53-0x00000000010C0000-0x00000000010C8000-memory.dmp

Filesize
32KB

Download
memory/1420-43-0x0000000004860000-0x0000000004870000-memory.dmp

Filesize
64KB

Download
memory/1420-42-0x0000000004790000-0x00000000047A8000-memory.dmp

Filesize
96KB

Download
memory/1420-41-0x0000000004740000-0x000000000478E000-memory.dmp

Filesize
312KB

Download
memory/1420-38-0x0000000000800000-0x0000000000812000-memory.dmp

Filesize
72KB

Download
memory/1420-37-0x0000000000890000-0x000000000099E000-memory.dmp

Filesize
1.1MB

Download
memory/2668-6-0x0000000000D30000-0x0000000000D38000-memory.dmp

Filesize
32KB

Download
memory/2668-34-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-7-0x0000000000D40000-0x0000000000D48000-memory.dmp

Filesize
32KB

Download
memory/2668-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/2668-5-0x0000000000A70000-0x0000000000A82000-memory.dmp

Filesize
72KB

Download
memory/2668-4-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-3-0x00000000009F0000-0x0000000000A4C000-memory.dmp

Filesize
368KB

Download
memory/2668-2-0x0000000000300000-0x000000000030E000-memory.dmp

Filesize
56KB

Download
memory/2668-1-0x0000000001060000-0x000000000116E000-memory.dmp

Filesize
1.1MB

Download
memory/2872-22-0x000007FEF63D0000-0x000007FEF6DBC000-memory.dmp

Filesize
9.9MB

Download
memory/2872-19-0x000007FEF63D0000-0x000007FEF6DBC000-memory.dmp

Filesize
9.9MB

Download
memory/2872-18-0x00000000011E0000-0x00000000011EC000-memory.dmp

Filesize
48KB

Download
memory/2872-16-0x000007FEF63D3000-0x000007FEF63D4000-memory.dmp

Filesize
4KB

Download