orcus | a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7

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

C2

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
behavioral2/files/0x00080000000233fe-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/2872-1-0x0000000000180000-0x000000000047E000-memory.dmp	orcus
behavioral2/files/0x00080000000233fe-13.dat	orcus

Checks computer location settings 2 TTPs 1 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe

Executes dropped EXE 4 IoCs

pid	Process
4464	Microsoft Update Health Service.exe
1224	Microsoft Update Health Service.exe
3028	Microsoft Update Health Service.exe
3732	Microsoft Update Health Service.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	4464	Microsoft Update Health Service.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 4464	2872	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	86
PID 2872 wrote to memory of 4464	2872	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	86
PID 2872 wrote to memory of 4464	2872	a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe	86

C:\Users\Admin\AppData\Local\Temp\a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe
"C:\Users\Admin\AppData\Local\Temp\a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2872
- 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:4464

C:\Users\Public\Photos\Microsoft Update Health Service.exe
"C:\Users\Public\Photos\Microsoft Update Health Service.exe"
1⤵
- Executes dropped EXE
PID:1224

C:\Users\Public\Photos\Microsoft Update Health Service.exe
"C:\Users\Public\Photos\Microsoft Update Health Service.exe"
1⤵
- Executes dropped EXE
PID:3028

C:\Users\Public\Photos\Microsoft Update Health Service.exe
"C:\Users\Public\Photos\Microsoft Update Health Service.exe"
1⤵
- Executes dropped EXE
PID:3732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Microsoft Update Health Service.exe.log

Filesize
1KB

MD5
0672db2ef13237d5cb85075ff4915942

SHA1
ad8b4d3eb5e40791c47d48b22e273486f25f663f

SHA256
0a933408890369b5a178f9c30aa93d2c94f425650815cf8e8310de4e90a3b519

SHA512
84ad10ba5b695567d33a52f786405a5544aa49d8d23631ba9edf3afa877c5dbd81570d15bcf74bce5d9fb1afad2117d0a4ef913b396c0d923afefe615619c84b

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

Filesize
3.0MB

MD5
b480f15af8c87b7146a5ae304d8887c9

SHA1
800b54bc03123bddd00a3fed75f503a78e962f23

SHA256
a658af86620c88e805af49a8c4422d8e3284316fb9687a0d723e71f224d712c7

SHA512
81aac615041f270a974b8fbebad4ec86f0b17c57bb633e25da510e63c4498ffd5f02165033747e96e0993419c59ce1704fd6bbef79e506fe49b0b5e8c950c7f0

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/1224-31-0x0000000074C60000-0x0000000075410000-memory.dmp

Filesize
7.7MB

Download
memory/1224-42-0x0000000074C60000-0x0000000075410000-memory.dmp

Filesize
7.7MB

Download
memory/2872-3-0x0000000074C60000-0x0000000075410000-memory.dmp

Filesize
7.7MB

Download
memory/2872-6-0x00000000050E0000-0x0000000005172000-memory.dmp

Filesize
584KB

Download
memory/2872-7-0x00000000056B0000-0x00000000056C2000-memory.dmp

Filesize
72KB

Download
memory/2872-5-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/2872-4-0x0000000004E20000-0x0000000004E7C000-memory.dmp

Filesize
368KB

Download
memory/2872-23-0x0000000074C60000-0x0000000075410000-memory.dmp

Filesize
7.7MB

Download
memory/2872-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

Filesize
4KB

Download
memory/2872-2-0x00000000026F0000-0x00000000026FE000-memory.dmp

Filesize
56KB

Download
memory/2872-1-0x0000000000180000-0x000000000047E000-memory.dmp

Filesize
3.0MB

Download
memory/4464-25-0x0000000005050000-0x0000000005062000-memory.dmp

Filesize
72KB

Download
memory/4464-36-0x0000000006B20000-0x0000000006B32000-memory.dmp

Filesize
72KB

Download
memory/4464-29-0x0000000006130000-0x0000000006140000-memory.dmp

Filesize
64KB

Download
memory/4464-30-0x0000000006440000-0x000000000644A000-memory.dmp

Filesize
40KB

Download
memory/4464-26-0x0000000005690000-0x00000000056DE000-memory.dmp

Filesize
312KB

Download
memory/4464-34-0x0000000006A20000-0x0000000006A86000-memory.dmp

Filesize
408KB

Download
memory/4464-35-0x0000000007300000-0x0000000007918000-memory.dmp

Filesize
6.1MB

Download
memory/4464-27-0x0000000005E40000-0x0000000005E58000-memory.dmp

Filesize
96KB

Download
memory/4464-37-0x0000000006D20000-0x0000000006D5C000-memory.dmp

Filesize
240KB

Download
memory/4464-38-0x0000000006D60000-0x0000000006DAC000-memory.dmp

Filesize
304KB

Download
memory/4464-39-0x0000000006EC0000-0x0000000006FCA000-memory.dmp

Filesize
1.0MB

Download
memory/4464-40-0x0000000007920000-0x0000000007AE2000-memory.dmp

Filesize
1.8MB

Download
memory/4464-24-0x0000000074C60000-0x0000000075410000-memory.dmp

Filesize
7.7MB

Download
memory/4464-43-0x0000000074C60000-0x0000000075410000-memory.dmp

Filesize
7.7MB

Download
memory/4464-22-0x0000000074C60000-0x0000000075410000-memory.dmp

Filesize
7.7MB

Download

Analysis

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