orcus | c64daa27c0465771e2df05a9dfd33540793005c5e500b3641f5c52fc06845b82

Analysis

max time kernel
101s
max time network
127s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
15-01-2025 18:48

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General

Target

eafwafafa.exe
Size

839KB
MD5

118dfc8a885a3d4e965570149afe3893
SHA1

224a6d377419a6b2b8214ec0af9b07f3cfe6287c
SHA256

c64daa27c0465771e2df05a9dfd33540793005c5e500b3641f5c52fc06845b82
SHA512

687159a7022036fdddc6973deb0a540ee70f8545c832b065cca712539ee41dca3037949e7f33b388fabdb05f55685f65ead7889b319338d645fb64f3292d8b5c
SSDEEP

24576:QpS04YNEMuExDiU6E5R9s8xY/2l/dmtnIbt+rA:QL4auS+UjfU2TmdIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

0.tcp.ngrok.io

Mutex

f28cba43d1d1437ba028c4fbeb0b8635

Attributes

administration_rights_required
false
anti_debugger
false
anti_tcp_analyzer
false
antivm
false
autostart_method
1
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
01/15/2025 15:18:20
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-1-5-21-3463531801-1484541064-3495084620-1000\Control Panel\International\Geo\Nation	eafwafafa.exe

Executes dropped EXE 1 IoCs

pid	Process
1100	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	eafwafafa.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	eafwafafa.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service

T1102

flow	ioc
3	0.tcp.ngrok.io

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	eafwafafa.exe
File created	C:\Windows\assembly\Desktop.ini	eafwafafa.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	eafwafafa.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	eafwafafa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1100	AudioDriver.exe
1100	AudioDriver.exe
1100	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1100	AudioDriver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1100	AudioDriver.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1100	AudioDriver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 1100	4028	eafwafafa.exe	81
PID 4028 wrote to memory of 1100	4028	eafwafafa.exe	81
PID 4028 wrote to memory of 1100	4028	eafwafafa.exe	81

C:\Users\Admin\AppData\Local\Temp\eafwafafa.exe
"C:\Users\Admin\AppData\Local\Temp\eafwafafa.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4028
- 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:1100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

Filesize
839KB

MD5
118dfc8a885a3d4e965570149afe3893

SHA1
224a6d377419a6b2b8214ec0af9b07f3cfe6287c

SHA256
c64daa27c0465771e2df05a9dfd33540793005c5e500b3641f5c52fc06845b82

SHA512
687159a7022036fdddc6973deb0a540ee70f8545c832b065cca712539ee41dca3037949e7f33b388fabdb05f55685f65ead7889b319338d645fb64f3292d8b5c

Download Submit
memory/1100-7-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download
memory/1100-9-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download
memory/1100-10-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download
memory/1100-11-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download
memory/1100-13-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download
memory/4028-0-0x00000000751D2000-0x00000000751D3000-memory.dmp

Filesize
4KB

Download
memory/4028-1-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download
memory/4028-2-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download
memory/4028-8-0x00000000751D0000-0x0000000075781000-memory.dmp

Filesize
5.7MB

Download