orcus | 66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253c

Analysis

max time kernel
120s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-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 1 IoCs

resource	yara_rule
behavioral2/memory/5216-22-0x0000000000400000-0x00000000004EC000-memory.dmp	orcus

Checks computer location settings 2 TTPs 2 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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	Regasm.exe

Executes dropped EXE 4 IoCs

pid	Process
4828	Filename.exe
5876	WindowsInput.exe
5428	WindowsInput.exe
2036	Orcus.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-1-5-21-308834014-1004923324-1191300197-1000\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 4828 set thread context of 5216	4828	Filename.exe	97

Drops file in Program Files directory 3 IoCs

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4368	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe
4828	Filename.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4368	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
Token: SeDebugPrivilege	4828	Filename.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 4828	4368	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe	95
PID 4368 wrote to memory of 4828	4368	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe	95
PID 4368 wrote to memory of 4828	4368	66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe	95
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 4828 wrote to memory of 5216	4828	Filename.exe	97
PID 5216 wrote to memory of 5876	5216	Regasm.exe	98
PID 5216 wrote to memory of 5876	5216	Regasm.exe	98
PID 5216 wrote to memory of 2036	5216	Regasm.exe	100
PID 5216 wrote to memory of 2036	5216	Regasm.exe	100
PID 5216 wrote to memory of 2036	5216	Regasm.exe	100

C:\Users\Admin\AppData\Local\Temp\66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe
"C:\Users\Admin\AppData\Local\Temp\66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253cN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368
- 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:4828
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe"
    3⤵
    - Checks computer location settings
    - Drops file in System32 directory
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5216
  - - C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      4⤵
      Executes dropped EXE
      Drops file in System32 directory
      PID:5876
  - - 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:2036

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:5428

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

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 (x86)\Orcus\Orcus.exe

Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

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

Filesize
1.8MB

MD5
f989ff7a571201f40e54273508ddff80

SHA1
9cacdc239acc40450eae2c829ccb8288d73fcf72

SHA256
66e5770f457bcfe9116390e4fdd2bbf76ac576b9afb50ae0da730601e4b4253c

SHA512
ac8667da670bd6b75a47c6c736ccac5d520669b4f44c55fb0b7ca813b8b9a3da19fa0003aaffe5b9615635f63abb2e45a5561516b8f444bfe9131f3279c32f0b

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/2036-70-0x0000000000F60000-0x0000000000F72000-memory.dmp

Filesize
72KB

Download
memory/4368-18-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4368-5-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4368-4-0x0000000004A90000-0x0000000004AF6000-memory.dmp

Filesize
408KB

Download
memory/4368-3-0x0000000004C10000-0x00000000051B4000-memory.dmp

Filesize
5.6MB

Download
memory/4368-2-0x0000000004980000-0x0000000004A1C000-memory.dmp

Filesize
624KB

Download
memory/4368-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/4368-1-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download
memory/4828-19-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4828-20-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4828-21-0x0000000005A00000-0x0000000005A18000-memory.dmp

Filesize
96KB

Download
memory/4828-73-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4828-23-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/4828-72-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/5216-27-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/5216-67-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/5216-30-0x0000000005530000-0x0000000005538000-memory.dmp

Filesize
32KB

Download
memory/5216-29-0x0000000005520000-0x0000000005532000-memory.dmp

Filesize
72KB

Download
memory/5216-28-0x0000000005540000-0x00000000055D2000-memory.dmp

Filesize
584KB

Download
memory/5216-22-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/5216-25-0x0000000005410000-0x000000000546C000-memory.dmp

Filesize
368KB

Download
memory/5216-26-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/5216-31-0x00000000059A0000-0x00000000059C2000-memory.dmp

Filesize
136KB

Download
memory/5216-24-0x0000000002CF0000-0x0000000002CFE000-memory.dmp

Filesize
56KB

Download
memory/5428-52-0x000000001A570000-0x000000001A67A000-memory.dmp

Filesize
1.0MB

Download
memory/5876-47-0x0000000002620000-0x000000000265C000-memory.dmp

Filesize
240KB

Download
memory/5876-46-0x0000000000CE0000-0x0000000000CF2000-memory.dmp

Filesize
72KB

Download
memory/5876-45-0x0000000000520000-0x000000000052C000-memory.dmp

Filesize
48KB

Download