orcus | 66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253c

Analysis

max time kernel
119s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23/03/2025, 21:42

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General

Target

66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
Size

1.8MB
MD5

f989ff7a571201f40e54273508ddff80
SHA1

9cacdc239acc40450eae2c829ccb8288d73fcf72
SHA256

66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253c
SHA512

ac8667da670bd6b75a47c6c736ccac5d520669b4f44c55fb0b7ca813b8b9a3da19fa0003aaffe5b9615635f63abb2e45a5561516b8f444bfe9131f3279c32f0b
SSDEEP

49152:v5YjREzhJp52XHlUW8hKHXzzTiSTZdXTZdHXTZdXTZ:v

Score

10^/10

orcus discovery persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

127.0.0.1:7777

Mutex

37ac276d673e458f96b24d45f7ec9f03

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Lime Crypter
taskscheduler_taskname
Orcus
watchdog_path
Temp\Lime Crypter

Signatures

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

Orcurs Rat Executable 5 IoCs

resource	yara_rule
behavioral1/memory/744-22-0x0000000000400000-0x00000000004EC000-memory.dmp	orcus
behavioral1/memory/744-18-0x0000000000400000-0x00000000004EC000-memory.dmp	orcus
behavioral1/memory/744-16-0x0000000000400000-0x00000000004EC000-memory.dmp	orcus
behavioral1/memory/744-26-0x0000000000400000-0x00000000004EC000-memory.dmp	orcus
behavioral1/memory/744-24-0x0000000000400000-0x00000000004EC000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
2224	Filename.exe
2588	WindowsInput.exe
2312	WindowsInput.exe
2864	Orcus.exe

Loads dropped DLL 3 IoCs

pid	Process
2204	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
744	Regasm.exe
744	Regasm.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Filename.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Filename.exe"	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe

Drops file in System32 directory 3 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2224 set thread context of 744	2224	Filename.exe	34

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	Regasm.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	Regasm.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	Regasm.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 4 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	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Filename.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2204	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe
2224	Filename.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
Token: SeDebugPrivilege	2224	Filename.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2224	2204	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe	32
PID 2204 wrote to memory of 2224	2204	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe	32
PID 2204 wrote to memory of 2224	2204	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe	32
PID 2204 wrote to memory of 2224	2204	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe	32
PID 2224 wrote to memory of 2576	2224	Filename.exe	33
PID 2224 wrote to memory of 2576	2224	Filename.exe	33
PID 2224 wrote to memory of 2576	2224	Filename.exe	33
PID 2224 wrote to memory of 2576	2224	Filename.exe	33
PID 2224 wrote to memory of 2576	2224	Filename.exe	33
PID 2224 wrote to memory of 2576	2224	Filename.exe	33
PID 2224 wrote to memory of 2576	2224	Filename.exe	33
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 2224 wrote to memory of 744	2224	Filename.exe	34
PID 744 wrote to memory of 2588	744	Regasm.exe	35
PID 744 wrote to memory of 2588	744	Regasm.exe	35
PID 744 wrote to memory of 2588	744	Regasm.exe	35
PID 744 wrote to memory of 2588	744	Regasm.exe	35
PID 744 wrote to memory of 2864	744	Regasm.exe	37
PID 744 wrote to memory of 2864	744	Regasm.exe	37
PID 744 wrote to memory of 2864	744	Regasm.exe	37
PID 744 wrote to memory of 2864	744	Regasm.exe	37

C:\Users\Admin\AppData\Local\Temp\66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
"C:\Users\Admin\AppData\Local\Temp\66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe"
1⤵
- 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 WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Roaming\Filename.exe
  "C:\Users\Admin\AppData\Roaming\Filename.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe"
    3⤵
    PID:2576
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe"
    3⤵
    - 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:744
  - - C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      4⤵
      Executes dropped EXE
      Drops file in System32 directory
      PID:2588
  - - C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2864

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2312

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

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Downloads

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Program Files (x86)\Orcus\Orcus.exe

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Roaming\Filename.exe

Filesize
1.8MB

MD5
f989ff7a571201f40e54273508ddff80

SHA1
9cacdc239acc40450eae2c829ccb8288d73fcf72

SHA256
66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253c

SHA512
ac8667da670bd6b75a47c6c736ccac5d520669b4f44c55fb0b7ca813b8b9a3da19fa0003aaffe5b9615635f63abb2e45a5561516b8f444bfe9131f3279c32f0b

Download Submit
\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

Download Submit
memory/744-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/744-28-0x0000000000720000-0x000000000077C000-memory.dmp

Filesize
368KB

Download
memory/744-30-0x00000000009D0000-0x00000000009D8000-memory.dmp

Filesize
32KB

Download
memory/744-12-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/744-14-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/744-22-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/744-18-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/744-16-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/744-26-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/744-24-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/744-27-0x00000000004F0000-0x00000000004FE000-memory.dmp

Filesize
56KB

Download
memory/744-29-0x00000000009B0000-0x00000000009C2000-memory.dmp

Filesize
72KB

Download
memory/2204-0-0x00000000747BE000-0x00000000747BF000-memory.dmp

Filesize
4KB

Download
memory/2204-1-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download
memory/2224-11-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2224-10-0x00000000005D0000-0x00000000005E8000-memory.dmp

Filesize
96KB

Download
memory/2224-9-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2224-56-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2224-57-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2312-43-0x0000000000110000-0x000000000011C000-memory.dmp

Filesize
48KB

Download
memory/2588-39-0x0000000000160000-0x000000000016C000-memory.dmp

Filesize
48KB

Download
memory/2864-55-0x0000000000390000-0x00000000003A2000-memory.dmp

Filesize
72KB

Download