orcus | a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7

Analysis

max time kernel
126s
max time network
125s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
07-06-2024 01:37

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General

Target

a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe
Size

3.0MB
MD5

b480f15af8c87b7146a5ae304d8887c9
SHA1

800b54bc03123bddd00a3fed75f503a78e962f23
SHA256

a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7
SHA512

81aac615041f270a974b8fbebad4ec86f0b17c57bb633e25da510e63c4498ffd5f02165033747e96e0993419c59ce1704fd6bbef79e506fe49b0b5e8c950c7f0
SSDEEP

49152:O3X27p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpEu/nRFfjI7L0qb:OWHTPJg8z1mKnypSbRxo9JCm

Score

10^/10

orcus plaki plaki rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

plaki plaki

31.44.184.52:29613

Mutex

sudo_y6kxwm3c0l7atyypwtp1qnfdustfx6xq

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
C:\Users\Public\Photos\Microsoft Update Health Service.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 main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000167d5-9.dat	family_orcus

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/2368-1-0x00000000003B0000-0x00000000006AE000-memory.dmp	orcus
behavioral1/files/0x00090000000167d5-9.dat	orcus
behavioral1/memory/2748-17-0x0000000001120000-0x000000000141E000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
2748	Microsoft Update Health Service.exe
2544	Microsoft Update Health Service.exe
2780	Microsoft Update Health Service.exe
1476	Microsoft Update Health Service.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2748	Microsoft Update Health Service.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2748	2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	28
PID 2368 wrote to memory of 2748	2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	28
PID 2368 wrote to memory of 2748	2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	28
PID 2368 wrote to memory of 2748	2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	28
PID 2368 wrote to memory of 2748	2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	28
PID 2368 wrote to memory of 2748	2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	28
PID 2368 wrote to memory of 2748	2368	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	28
PID 2548 wrote to memory of 2544	2548	taskeng.exe	30
PID 2548 wrote to memory of 2544	2548	taskeng.exe	30
PID 2548 wrote to memory of 2544	2548	taskeng.exe	30
PID 2548 wrote to memory of 2544	2548	taskeng.exe	30
PID 2548 wrote to memory of 2544	2548	taskeng.exe	30
PID 2548 wrote to memory of 2544	2548	taskeng.exe	30
PID 2548 wrote to memory of 2544	2548	taskeng.exe	30
PID 2548 wrote to memory of 2780	2548	taskeng.exe	34
PID 2548 wrote to memory of 2780	2548	taskeng.exe	34
PID 2548 wrote to memory of 2780	2548	taskeng.exe	34
PID 2548 wrote to memory of 2780	2548	taskeng.exe	34
PID 2548 wrote to memory of 2780	2548	taskeng.exe	34
PID 2548 wrote to memory of 2780	2548	taskeng.exe	34
PID 2548 wrote to memory of 2780	2548	taskeng.exe	34
PID 2548 wrote to memory of 1476	2548	taskeng.exe	35
PID 2548 wrote to memory of 1476	2548	taskeng.exe	35
PID 2548 wrote to memory of 1476	2548	taskeng.exe	35
PID 2548 wrote to memory of 1476	2548	taskeng.exe	35
PID 2548 wrote to memory of 1476	2548	taskeng.exe	35
PID 2548 wrote to memory of 1476	2548	taskeng.exe	35
PID 2548 wrote to memory of 1476	2548	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe
"C:\Users\Admin\AppData\Local\Temp\a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Public\Photos\Microsoft Update Health Service.exe
  "C:\Users\Public\Photos\Microsoft Update Health Service.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2748

C:\Windows\system32\taskeng.exe
taskeng.exe {6DD96FBA-11C8-4046-9E67-192B3896B365} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Public\Photos\Microsoft Update Health Service.exe
  "C:\Users\Public\Photos\Microsoft Update Health Service.exe"
  2⤵
  - Executes dropped EXE
  PID:2544
- C:\Users\Public\Photos\Microsoft Update Health Service.exe
  "C:\Users\Public\Photos\Microsoft Update Health Service.exe"
  2⤵
  - Executes dropped EXE
  PID:2780
- C:\Users\Public\Photos\Microsoft Update Health Service.exe
  "C:\Users\Public\Photos\Microsoft Update Health Service.exe"
  2⤵
  - Executes dropped EXE
  PID:1476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\Photos\Microsoft Update Health Service.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Users\Public\Photos\Microsoft Update Health Service.exe

Filesize
3.0MB

MD5
b480f15af8c87b7146a5ae304d8887c9

SHA1
800b54bc03123bddd00a3fed75f503a78e962f23

SHA256
a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7

SHA512
81aac615041f270a974b8fbebad4ec86f0b17c57bb633e25da510e63c4498ffd5f02165033747e96e0993419c59ce1704fd6bbef79e506fe49b0b5e8c950c7f0

Download Submit
memory/2368-16-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-1-0x00000000003B0000-0x00000000006AE000-memory.dmp

Filesize
3.0MB

Download
memory/2368-2-0x00000000003A0000-0x00000000003AE000-memory.dmp

Filesize
56KB

Download
memory/2368-3-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-4-0x00000000049F0000-0x0000000004A4C000-memory.dmp

Filesize
368KB

Download
memory/2368-5-0x0000000000830000-0x0000000000842000-memory.dmp

Filesize
72KB

Download
memory/2368-0-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/2748-15-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2748-17-0x0000000001120000-0x000000000141E000-memory.dmp

Filesize
3.0MB

Download
memory/2748-18-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2748-19-0x00000000003A0000-0x00000000003B2000-memory.dmp

Filesize
72KB

Download
memory/2748-20-0x0000000000700000-0x000000000074E000-memory.dmp

Filesize
312KB

Download
memory/2748-21-0x0000000000890000-0x00000000008A8000-memory.dmp

Filesize
96KB

Download
memory/2748-22-0x0000000000C40000-0x0000000000C50000-memory.dmp

Filesize
64KB

Download
memory/2748-36-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2748-37-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download