orcus | 225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9

Analysis

max time kernel
126s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31/01/2025, 01:23

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General

Target

225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe
Size

3.0MB
MD5

c0425594cb2719131850869093fdac64
SHA1

57801983f722353632cbe6338619f274c59d5caf
SHA256

225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9
SHA512

a48f63e4b44522c61feff0a7d44af41250ba3264c989d8e1e50c7fee0c4b90b5a3e2b7984da5098874d4368cd7196419b9815b4fe002558ddecafa225cdaf328
SSDEEP

49152:4s7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpau/nRFfjI7L0qb:4sHTPJg8z1mKnypSbRxo9JCm

Score

10^/10

orcus niggers discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

niggers

31.44.184.52:16749

Mutex

sudo_ai8hybb6bfsu8cdberulrqxurblwtews

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%appdata%\cpuflower\windowsauth.exe
reconnect_delay
10000
registry_keyname
Sudik
taskscheduler_taskname
sudik
watchdog_path
AppData\aga.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/0x000700000001868b-10.dat	family_orcus

Orcurs Rat Executable 8 IoCs

resource	yara_rule
behavioral1/memory/2172-1-0x0000000001010000-0x000000000130E000-memory.dmp	orcus
behavioral1/files/0x000700000001868b-10.dat	orcus
behavioral1/memory/1264-18-0x00000000012C0000-0x00000000015BE000-memory.dmp	orcus
behavioral1/memory/2708-31-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2708-33-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2708-30-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2708-27-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2708-25-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
1264	windowsauth.exe
2752	windowsauth.exe
2904	windowsauth.exe
1768	windowsauth.exe

Loads dropped DLL 1 IoCs

pid	Process
2172	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1264 set thread context of 2708	1264	windowsauth.exe	33

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 6 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	windowsauth.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windowsauth.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windowsauth.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	installutil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windowsauth.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2172	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe
1264	windowsauth.exe
1264	windowsauth.exe
2708	installutil.exe
2708	installutil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe
Token: SeDebugPrivilege	1264	windowsauth.exe
Token: SeDebugPrivilege	2708	installutil.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 1264	2172	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe	31
PID 2172 wrote to memory of 1264	2172	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe	31
PID 2172 wrote to memory of 1264	2172	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe	31
PID 2172 wrote to memory of 1264	2172	225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe	31
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 1264 wrote to memory of 2708	1264	windowsauth.exe	33
PID 784 wrote to memory of 2752	784	taskeng.exe	34
PID 784 wrote to memory of 2752	784	taskeng.exe	34
PID 784 wrote to memory of 2752	784	taskeng.exe	34
PID 784 wrote to memory of 2752	784	taskeng.exe	34
PID 784 wrote to memory of 2904	784	taskeng.exe	36
PID 784 wrote to memory of 2904	784	taskeng.exe	36
PID 784 wrote to memory of 2904	784	taskeng.exe	36
PID 784 wrote to memory of 2904	784	taskeng.exe	36
PID 784 wrote to memory of 1768	784	taskeng.exe	38
PID 784 wrote to memory of 1768	784	taskeng.exe	38
PID 784 wrote to memory of 1768	784	taskeng.exe	38
PID 784 wrote to memory of 1768	784	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe
"C:\Users\Admin\AppData\Local\Temp\225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe
  "C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.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:1264
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2708

C:\Windows\system32\taskeng.exe
taskeng.exe {72A7E93F-BAF4-4BA1-A7F9-DEBD9CB0A3F6} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:784
- C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe
  C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe
  C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe
  C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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:\Users\Admin\AppData\Local\Temp\CabD819.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Users\Admin\AppData\Roaming\cpuflower\windowsauth.exe

Filesize
3.0MB

MD5
c0425594cb2719131850869093fdac64

SHA1
57801983f722353632cbe6338619f274c59d5caf

SHA256
225b6199e42b79355c1bed89cf53ddd3ccfb8f407637951501fefe01105761f9

SHA512
a48f63e4b44522c61feff0a7d44af41250ba3264c989d8e1e50c7fee0c4b90b5a3e2b7984da5098874d4368cd7196419b9815b4fe002558ddecafa225cdaf328

Download Submit
memory/1264-20-0x0000000000A80000-0x0000000000ACE000-memory.dmp

Filesize
312KB

Download
memory/1264-34-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/1264-16-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/1264-18-0x00000000012C0000-0x00000000015BE000-memory.dmp

Filesize
3.0MB

Download
memory/1264-19-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2172-5-0x00000000002D0000-0x00000000002E2000-memory.dmp

Filesize
72KB

Download
memory/2172-2-0x0000000000280000-0x000000000028E000-memory.dmp

Filesize
56KB

Download
memory/2172-3-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2172-17-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2172-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/2172-1-0x0000000001010000-0x000000000130E000-memory.dmp

Filesize
3.0MB

Download
memory/2172-4-0x00000000003E0000-0x000000000043C000-memory.dmp

Filesize
368KB

Download
memory/2708-23-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2708-31-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2708-33-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2708-30-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2708-35-0x0000000000850000-0x0000000000868000-memory.dmp

Filesize
96KB

Download
memory/2708-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-27-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2708-25-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2708-37-0x0000000000990000-0x00000000009A0000-memory.dmp

Filesize
64KB

Download
memory/2708-21-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2708-54-0x0000000001030000-0x000000000103E000-memory.dmp

Filesize
56KB

Download
memory/2708-55-0x0000000004BA0000-0x0000000004BA2000-memory.dmp

Filesize
8KB

Download