orcus | ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7

General

Target

ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe
Size

6.0MB
MD5

366809485bc0958ac26655a8158283a0
SHA1

e342bcae97887ae54af1a452bee924cf3ae0dbdc
SHA256

ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7
SHA512

c7e026768dc555ea15f86334e1ad3f00f314d223e49e291144ea262380856d31b2b57f696d185c5fe69c5c229dcaf4a001b13b81d1929415f50b001c79e03e15
SSDEEP

24576:CyGS04YNEMuExDiU6E5R9s8xY/2l/dlLc83UIbt+ry:CyC4auS+UjfU2T1t3UIbt+r

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

192.168.68.146

Mutex

e28b1da3c3fd4d4da0a40bd5d996fbb0

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\Windows\PDFReader.exe
installservice
false
keylogger_enabled
false
newcreationdate
01/27/2025 15:40:25
plugins
AgUFl6aNkQPXkQKOmwKLvFcpr24sKCsVRABpAHMAYQBiAGwAZQAgAFcAZQBiAGMAYQBtACAATABpAGcAaAB0AHMABwMxAC4AMABBIDkANQA1ADQAMwA0ADEAYwA3ADQAZQA5ADQAYgA0ADMAYgAzAGMAMwBmAGEAYQAzADAANAAxADcAYQBkADYAYwABAAAAAgI=
reconnect_delay
10000
registry_autostart_keyname
PDFReader
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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe

Executes dropped EXE 1 IoCs

pid	Process
2624	PDFReader.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	ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PDFReader.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe
2624	PDFReader.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	PDFReader.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2624	PDFReader.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2624	PDFReader.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 2624	4572	ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe	86
PID 4572 wrote to memory of 2624	4572	ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe	86
PID 4572 wrote to memory of 2624	4572	ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe	86

C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe
"C:\Users\Admin\AppData\Local\Temp\ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PDFReader.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:2624

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\Windows\PDFReader.exe

Filesize
6.0MB

MD5
366809485bc0958ac26655a8158283a0

SHA1
e342bcae97887ae54af1a452bee924cf3ae0dbdc

SHA256
ba928c4d2ba59ab646e5a8178d5bada82704eb4819146b79139a378f3c2be8a7

SHA512
c7e026768dc555ea15f86334e1ad3f00f314d223e49e291144ea262380856d31b2b57f696d185c5fe69c5c229dcaf4a001b13b81d1929415f50b001c79e03e15

Download Submit
memory/2624-29-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2624-28-0x0000000006BC0000-0x0000000006BCA000-memory.dmp

Filesize
40KB

Download
memory/2624-27-0x0000000006660000-0x0000000006670000-memory.dmp

Filesize
64KB

Download
memory/2624-26-0x00000000066E0000-0x00000000068A2000-memory.dmp

Filesize
1.8MB

Download
memory/2624-25-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2624-22-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/4572-8-0x0000000005770000-0x0000000005778000-memory.dmp

Filesize
32KB

Download
memory/4572-0-0x000000007478E000-0x000000007478F000-memory.dmp

Filesize
4KB

Download
memory/4572-11-0x0000000006060000-0x00000000060AE000-memory.dmp

Filesize
312KB

Download
memory/4572-7-0x00000000056B0000-0x0000000005716000-memory.dmp

Filesize
408KB

Download
memory/4572-5-0x00000000055A0000-0x0000000005632000-memory.dmp

Filesize
584KB

Download
memory/4572-24-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/4572-6-0x0000000005500000-0x000000000554C000-memory.dmp

Filesize
304KB

Download
memory/4572-4-0x00000000057B0000-0x0000000005D54000-memory.dmp

Filesize
5.6MB

Download
memory/4572-3-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/4572-2-0x0000000002B10000-0x0000000002B1A000-memory.dmp

Filesize
40KB

Download
memory/4572-1-0x00000000005E0000-0x0000000000714000-memory.dmp

Filesize
1.2MB

Download

Analysis

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