orcus | e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6

General

Target

e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe
Size

904KB
MD5

0607b85b534f556fcb6f477072db166a
SHA1

fc8d0b79555ca080d96a202051bdb73718580cde
SHA256

e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6
SHA512

bff28785a7db1ee94a37b00979fcff1e766794d94a85c4785d30c8d7bc026a99588d4bad521076e7092d0374bdaa8cb54f1b6341c3c1a3fed64795ec4e639f74
SSDEEP

12288:M0XCGPSX0zbyD+ndg+QCImGYUl9qyzlkE2kUNCucpCwFuCQaUepPToIp7dG1lFld:yU04MROxnFTHrrcI0AilFEvxHPAjooe

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

b7fscoc.localto.net:8935

Mutex

cf06369f7b98472f97643448b3df76ba

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%appdata%\Roaming\am1\RuntimeBroker.exe
reconnect_delay
10000
registry_keyname
RuntimeBroker
taskscheduler_taskname
RuntimeBroker
watchdog_path
AppData\Runtime.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
behavioral2/files/0x0007000000023cb2-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/2396-1-0x00000000009E0000-0x0000000000AC8000-memory.dmp	orcus
behavioral2/files/0x0007000000023cb2-13.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe

Executes dropped EXE 1 IoCs

pid	Process
3436	RuntimeBroker.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 2 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	e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RuntimeBroker.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3436	RuntimeBroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3436	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 3436	2396	e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe	86
PID 2396 wrote to memory of 3436	2396	e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe	86
PID 2396 wrote to memory of 3436	2396	e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe	86

C:\Users\Admin\AppData\Local\Temp\e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe
"C:\Users\Admin\AppData\Local\Temp\e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe
  "C:\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3436

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe

Filesize
904KB

MD5
0607b85b534f556fcb6f477072db166a

SHA1
fc8d0b79555ca080d96a202051bdb73718580cde

SHA256
e9b5c460a6265592f78fb29b95bdd25fb4b91a5b6913384d24e5ca5cd57d7aa6

SHA512
bff28785a7db1ee94a37b00979fcff1e766794d94a85c4785d30c8d7bc026a99588d4bad521076e7092d0374bdaa8cb54f1b6341c3c1a3fed64795ec4e639f74

Download Submit
C:\Users\Admin\AppData\Roaming\Roaming\am1\RuntimeBroker.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/2396-4-0x00000000054A0000-0x00000000054FC000-memory.dmp

Filesize
368KB

Download
memory/2396-3-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2396-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/2396-5-0x0000000005C20000-0x00000000061C4000-memory.dmp

Filesize
5.6MB

Download
memory/2396-6-0x0000000005670000-0x0000000005702000-memory.dmp

Filesize
584KB

Download
memory/2396-7-0x00000000055A0000-0x00000000055B2000-memory.dmp

Filesize
72KB

Download
memory/2396-2-0x00000000015C0000-0x00000000015CE000-memory.dmp

Filesize
56KB

Download
memory/2396-1-0x00000000009E0000-0x0000000000AC8000-memory.dmp

Filesize
928KB

Download
memory/2396-24-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3436-23-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3436-25-0x0000000005EC0000-0x0000000005ED2000-memory.dmp

Filesize
72KB

Download
memory/3436-26-0x0000000006300000-0x000000000634E000-memory.dmp

Filesize
312KB

Download
memory/3436-27-0x0000000006370000-0x0000000006388000-memory.dmp

Filesize
96KB

Download
memory/3436-29-0x00000000063A0000-0x00000000063B0000-memory.dmp

Filesize
64KB

Download
memory/3436-28-0x0000000006E80000-0x0000000007042000-memory.dmp

Filesize
1.8MB

Download
memory/3436-30-0x0000000006E70000-0x0000000006E7A000-memory.dmp

Filesize
40KB

Download
memory/3436-31-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download

Analysis

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