orcus | f829c2d6d6d04ef3da1a9259473265122971fa50175b96b10f4c3f944d257f5b

General

Target

qsdadsasd.exe
Size

920KB
MD5

9796fb7a3709287242c4070a571115f9
SHA1

c2972a613760363bba195af56f46552cbd24637e
SHA256

f829c2d6d6d04ef3da1a9259473265122971fa50175b96b10f4c3f944d257f5b
SHA512

8c185dec478bb50e5f4a25daf53c98873affb71dfacd713d63e32f18ea7a8a7adbe2ef34d2a18eb1dad879d542033595c3aec566b07a9f61af154f3cdc1ec093
SSDEEP

24576:HRfKDPdDy9ixLM8+dBHW8quJMKXFq93wgQGQ:Ulvy8+dBW8qsMYFq93wgdQ

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

act-predictions.gl.at.ply.gg:53002

Mutex

ccda6c301bcc4bffbcfcf707e51e3319

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
Orcus
watchdog_path
AppData\OrcusWatchdog.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus

Orcurs Rat Executable 1 IoCs

resource	yara_rule
behavioral2/memory/2816-11-0x0000000000400000-0x00000000004E8000-memory.dmp	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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Executes dropped EXE 1 IoCs

pid	Process
4416	Orcus.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1616 set thread context of 2816	1616	qsdadsasd.exe	89

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	RegAsm.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	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 3 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qsdadsasd.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 1616 wrote to memory of 2816	1616	qsdadsasd.exe	89
PID 2816 wrote to memory of 4416	2816	RegAsm.exe	91
PID 2816 wrote to memory of 4416	2816	RegAsm.exe	91
PID 2816 wrote to memory of 4416	2816	RegAsm.exe	91

C:\Users\Admin\AppData\Local\Temp\qsdadsasd.exe
"C:\Users\Admin\AppData\Local\Temp\qsdadsasd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Program Files (x86)\Orcus\Orcus.exe
    "C:\Program Files (x86)\Orcus\Orcus.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4416

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

System Location Discovery

1

T1614

System Language Discovery

1

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:\Program Files (x86)\Orcus\Orcus.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/1616-6-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/1616-4-0x0000000005660000-0x000000000566A000-memory.dmp

Filesize
40KB

Download
memory/1616-13-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/1616-5-0x0000000005860000-0x00000000058D6000-memory.dmp

Filesize
472KB

Download
memory/1616-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/1616-7-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/1616-8-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/1616-9-0x00000000058E0000-0x00000000059CA000-memory.dmp

Filesize
936KB

Download
memory/1616-1-0x0000000000AD0000-0x0000000000BBC000-memory.dmp

Filesize
944KB

Download
memory/1616-2-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/1616-10-0x0000000005740000-0x000000000575E000-memory.dmp

Filesize
120KB

Download
memory/1616-3-0x00000000055B0000-0x0000000005642000-memory.dmp

Filesize
584KB

Download
memory/2816-17-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-14-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-18-0x00000000054E0000-0x00000000054F2000-memory.dmp

Filesize
72KB

Download
memory/2816-11-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2816-33-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-16-0x0000000005370000-0x00000000053CC000-memory.dmp

Filesize
368KB

Download
memory/2816-15-0x00000000012F0000-0x00000000012FE000-memory.dmp

Filesize
56KB

Download
memory/4416-39-0x0000000074400000-0x00000000744AB000-memory.dmp

Filesize
684KB

Download
memory/4416-37-0x0000000074400000-0x00000000744AB000-memory.dmp

Filesize
684KB

Download
memory/4416-36-0x0000000000F70000-0x0000000000F82000-memory.dmp

Filesize
72KB

Download

Analysis

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