orcus | ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9

General

Target

ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe
Size

3.0MB
MD5

06b372d38e5ba2f5cf02f04ccaa036ad
SHA1

225480c259028e3212fd8fb0504c53d4eb093c6e
SHA256

ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9
SHA512

bff7b623326a5baa3f1bb2867a0899e0a07ac524843e15f737cb3b854bd292de07fae76a8f737bd5ed2ef74676fd1af5cd80b111a957f0fa1904d09b9d72f984
SSDEEP

49152:Y1HS7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpbu/nRFfjI7L0qb:YUHTPJg8z1mKnypSbRxo9JCm

Score

10^/10

orcus rusthaval rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

RustHaval

C2

31.44.184.52:47228

Mutex

sudo_eca4djt1wipe6gy1hziwra2ivtn0q20p

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%appdata%\gameimageupdate\apiapi.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/0x0008000000023463-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/5036-1-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral2/files/0x0008000000023463-13.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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe

Executes dropped EXE 4 IoCs

pid	Process
1916	apiapi.exe
880	apiapi.exe
440	apiapi.exe
2420	apiapi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 4340	1916	apiapi.exe	88

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
5036	ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe
1916	apiapi.exe
1916	apiapi.exe
4340	installutil.exe
4340	installutil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5036	ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe
Token: SeDebugPrivilege	1916	apiapi.exe
Token: SeDebugPrivilege	4340	installutil.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 1916	5036	ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe	86
PID 5036 wrote to memory of 1916	5036	ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe	86
PID 5036 wrote to memory of 1916	5036	ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe	86
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88
PID 1916 wrote to memory of 4340	1916	apiapi.exe	88

C:\Users\Admin\AppData\Local\Temp\ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe
"C:\Users\Admin\AppData\Local\Temp\ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe
  "C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1916
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4340

C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe
C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe
1⤵
- Executes dropped EXE
PID:880

C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe
C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe
1⤵
- Executes dropped EXE
PID:440

C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe
C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe
1⤵
- Executes dropped EXE
PID:2420

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\apiapi.exe.log

Filesize
1KB

MD5
663b8d5469caa4489d463aa9bc18124f

SHA1
e57123a7d969115853ea631a3b33826335025d28

SHA256
7b4fa505452f0b8ac74bb31f5a03b13342836318018fb18d224ae2ff11b1a7e8

SHA512
45e373295125a629fcc0b19609608d969c9106514918bfac5d6b8e340e407434577b825741b8fa6a043c8f3f5c1a030ba8857da5f4e8ef15a551ce3c5fe03b55

Download Submit
C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe

Filesize
3.0MB

MD5
06b372d38e5ba2f5cf02f04ccaa036ad

SHA1
225480c259028e3212fd8fb0504c53d4eb093c6e

SHA256
ab4e53605b89ed2fc8e961fa2013a9bed7aae17c601c0d6f78a86b8ced2002b9

SHA512
bff7b623326a5baa3f1bb2867a0899e0a07ac524843e15f737cb3b854bd292de07fae76a8f737bd5ed2ef74676fd1af5cd80b111a957f0fa1904d09b9d72f984

Download Submit
C:\Users\Admin\AppData\Roaming\gameimageupdate\apiapi.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/880-47-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/880-33-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/880-30-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1916-29-0x0000000006820000-0x00000000068BC000-memory.dmp

Filesize
624KB

Download
memory/1916-25-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1916-34-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/1916-27-0x0000000005EB0000-0x0000000005EFE000-memory.dmp

Filesize
312KB

Download
memory/1916-26-0x0000000005E90000-0x0000000005EA2000-memory.dmp

Filesize
72KB

Download
memory/1916-24-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4340-35-0x0000000006010000-0x0000000006028000-memory.dmp

Filesize
96KB

Download
memory/4340-40-0x0000000007500000-0x0000000007512000-memory.dmp

Filesize
72KB

Download
memory/4340-48-0x0000000008630000-0x0000000008680000-memory.dmp

Filesize
320KB

Download
memory/4340-46-0x0000000007710000-0x000000000771E000-memory.dmp

Filesize
56KB

Download
memory/4340-45-0x0000000008110000-0x00000000082D2000-memory.dmp

Filesize
1.8MB

Download
memory/4340-43-0x0000000007730000-0x000000000783A000-memory.dmp

Filesize
1.0MB

Download
memory/4340-42-0x00000000075A0000-0x00000000075EC000-memory.dmp

Filesize
304KB

Download
memory/4340-41-0x0000000007560000-0x000000000759C000-memory.dmp

Filesize
240KB

Download
memory/4340-36-0x0000000006990000-0x00000000069A0000-memory.dmp

Filesize
64KB

Download
memory/4340-37-0x0000000006CD0000-0x0000000006CDA000-memory.dmp

Filesize
40KB

Download
memory/4340-38-0x0000000007460000-0x00000000074C6000-memory.dmp

Filesize
408KB

Download
memory/4340-39-0x0000000007AF0000-0x0000000008108000-memory.dmp

Filesize
6.1MB

Download
memory/5036-6-0x00000000054B0000-0x0000000005542000-memory.dmp

Filesize
584KB

Download
memory/5036-7-0x00000000054A0000-0x00000000054B2000-memory.dmp

Filesize
72KB

Download
memory/5036-23-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/5036-2-0x0000000002AF0000-0x0000000002AFE000-memory.dmp

Filesize
56KB

Download
memory/5036-3-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/5036-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/5036-4-0x00000000052B0000-0x000000000530C000-memory.dmp

Filesize
368KB

Download
memory/5036-1-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/5036-5-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download

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