orcus | b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f

General

Target

b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe
Size

840KB
MD5

56a5bd1af43f7dafd36f07bcd326f38f
SHA1

95658d034db1988a810a90279cf040bd64e47b23
SHA256

b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f
SHA512

81a3ff8e73cd8e96aa3aa1c32969ff5bd953a99f811074d26682506e02f545f3ece338a125c381c9ec3ccc7e38d4814d5ffb26c6c994792fa9b4f3a2b234e9bc
SSDEEP

24576:csiS04YNEMuExDiU6E5R9s8xY/2l/d+5Ibt+r6:cs+4auS+UjfU2TgIbt+r

Score

10^/10

orcus kompas group discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

Kompas Group

C2

157.245.148.149

Mutex

0ffda661718f499f923d5abfac3f086f

Attributes

administration_rights_required
false
anti_debugger
false
anti_tcp_analyzer
false
antivm
false
autostart_method
2
change_creation_date
false
force_installer_administrator_privileges
false
hide_file
false
install
false
installation_folder
%appdata%\Microsoft\Speech\AudioDriver.exe
installservice
false
keylogger_enabled
false
newcreationdate
11/21/2024 23:25:08
plugins
AgEAAA==
reconnect_delay
10000
registry_autostart_keyname
Audio HD Driver
registry_hidden_autostart
false
set_admin_flag
false
tasksch_name
Audio HD Driver
tasksch_request_highest_privileges
false
try_other_autostart_onfail
false

aes.plain

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe

Executes dropped EXE 1 IoCs

pid	Process
4000	AudioDriver.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	b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe
4000	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4000	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4000	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4000	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3992 wrote to memory of 4000	3992	b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe	82
PID 3992 wrote to memory of 4000	3992	b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe	82
PID 3992 wrote to memory of 4000	3992	b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe	82

C:\Users\Admin\AppData\Local\Temp\b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe
"C:\Users\Admin\AppData\Local\Temp\b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3992
- C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:4000

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\Microsoft\Speech\AudioDriver.exe

Filesize
840KB

MD5
56a5bd1af43f7dafd36f07bcd326f38f

SHA1
95658d034db1988a810a90279cf040bd64e47b23

SHA256
b2e7f5497b0cc51ccc1ef2ae65965b2afc47a6149aea27801f23a638c7838d2f

SHA512
81a3ff8e73cd8e96aa3aa1c32969ff5bd953a99f811074d26682506e02f545f3ece338a125c381c9ec3ccc7e38d4814d5ffb26c6c994792fa9b4f3a2b234e9bc

Download Submit
memory/3992-10-0x0000000005CA0000-0x0000000005CB8000-memory.dmp

Filesize
96KB

Download
memory/3992-5-0x0000000005B80000-0x0000000005C12000-memory.dmp

Filesize
584KB

Download
memory/3992-1-0x0000000000C30000-0x0000000000D08000-memory.dmp

Filesize
864KB

Download
memory/3992-4-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/3992-23-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/3992-6-0x0000000005AE0000-0x0000000005B2C000-memory.dmp

Filesize
304KB

Download
memory/3992-9-0x0000000005C20000-0x0000000005C6E000-memory.dmp

Filesize
312KB

Download
memory/3992-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/3992-3-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/3992-2-0x0000000003010000-0x000000000301A000-memory.dmp

Filesize
40KB

Download
memory/4000-22-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4000-24-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4000-25-0x0000000005470000-0x0000000005488000-memory.dmp

Filesize
96KB

Download
memory/4000-26-0x0000000005CD0000-0x0000000005E92000-memory.dmp

Filesize
1.8MB

Download
memory/4000-27-0x0000000005530000-0x0000000005540000-memory.dmp

Filesize
64KB

Download
memory/4000-28-0x0000000006210000-0x000000000621A000-memory.dmp

Filesize
40KB

Download
memory/4000-29-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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