orcus | 394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919

Analysis

max time kernel
150s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 01:04

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General

Target

394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Size

1.1MB
MD5

54347e3ae6be9d69ed6e88015e8a2db6
SHA1

dc582adf052059014ec7fdf151ad191fa85175ed
SHA256

394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919
SHA512

3210978088b571bd9fe1d14f1a4b483af28436b5730850fcad4e171616cf52b0a40ac210cf0cc565e17788fa83f2d5bb0fc1ae38ee721e80a1ccfa871a26458c
SSDEEP

24576:/Wnsll7mfUe+VnaFCnIR7XSA3Kd4Mp+xnFl3U:fvhe+naFCnIR7XSA6qM6H

Score

10^/10

orcus discovery evasion rat spyware stealer

Malware Config

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
behavioral1/files/0x0008000000015d59-14.dat	family_orcus

Looks for VirtualBox Guest Additions in registry 2 TTPs 3 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	System Runner.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	System Runner.exe

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/2388-1-0x00000000001B0000-0x00000000002DE000-memory.dmp	orcus
behavioral1/files/0x0008000000015d59-14.dat	orcus
behavioral1/memory/2168-19-0x0000000001160000-0x000000000128E000-memory.dmp	orcus

Looks for VMWare Tools registry key 2 TTPs 3 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	System Runner.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	System Runner.exe

Checks BIOS information in registry 2 TTPs 6 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	System Runner.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	System Runner.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	System Runner.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	System Runner.exe

Executes dropped EXE 4 IoCs

pid	Process
2168	System Runner.exe
2692	System Runner.exe
2628	System Interrupt Data.exe
1944	System Interrupt Data.exe

Loads dropped DLL 2 IoCs

pid	Process
2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
2168	System Runner.exe

Maps connected drives based on registry 3 TTPs 6 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	System Runner.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	System Runner.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	System Runner.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	System Runner.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\windows\System Runner.exe	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
File created	C:\Program Files (x86)\windows\System Runner.exe.config	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
File created	C:\Program Files (x86)\windows\System Runner.exe	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.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 5 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	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System Runner.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System Runner.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System Interrupt Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System Interrupt Data.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
2168	System Runner.exe
2168	System Runner.exe
2168	System Runner.exe
2692	System Runner.exe
2692	System Runner.exe
2692	System Runner.exe
2692	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2692	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
2168	System Runner.exe
2168	System Runner.exe
1944	System Interrupt Data.exe
1944	System Interrupt Data.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
Token: SeDebugPrivilege	2168	System Runner.exe
Token: SeDebugPrivilege	2692	System Runner.exe
Token: SeDebugPrivilege	2628	System Interrupt Data.exe
Token: SeDebugPrivilege	1944	System Interrupt Data.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2168	System Runner.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2168	System Runner.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2168	2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe	31
PID 2388 wrote to memory of 2168	2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe	31
PID 2388 wrote to memory of 2168	2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe	31
PID 2388 wrote to memory of 2168	2388	394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe	31
PID 2888 wrote to memory of 2692	2888	taskeng.exe	33
PID 2888 wrote to memory of 2692	2888	taskeng.exe	33
PID 2888 wrote to memory of 2692	2888	taskeng.exe	33
PID 2888 wrote to memory of 2692	2888	taskeng.exe	33
PID 2168 wrote to memory of 2628	2168	System Runner.exe	34
PID 2168 wrote to memory of 2628	2168	System Runner.exe	34
PID 2168 wrote to memory of 2628	2168	System Runner.exe	34
PID 2168 wrote to memory of 2628	2168	System Runner.exe	34
PID 2628 wrote to memory of 1944	2628	System Interrupt Data.exe	35
PID 2628 wrote to memory of 1944	2628	System Interrupt Data.exe	35
PID 2628 wrote to memory of 1944	2628	System Interrupt Data.exe	35
PID 2628 wrote to memory of 1944	2628	System Interrupt Data.exe	35

C:\Users\Admin\AppData\Local\Temp\394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe
"C:\Users\Admin\AppData\Local\Temp\394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Program Files (x86)\windows\System Runner.exe
  "C:\Program Files (x86)\windows\System Runner.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Users\Admin\AppData\Roaming\System Interrupt Data.exe
    "C:\Users\Admin\AppData\Roaming\System Interrupt Data.exe" /launchSelfAndExit "C:\Program Files (x86)\windows\System Runner.exe" 2168 /protectFile
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2628
  - - C:\Users\Admin\AppData\Roaming\System Interrupt Data.exe
      "C:\Users\Admin\AppData\Roaming\System Interrupt Data.exe" /watchProcess "C:\Program Files (x86)\windows\System Runner.exe" 2168 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1944

C:\Windows\system32\taskeng.exe
taskeng.exe {15F1045E-214F-4B34-A9E3-1739DF110BE5} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Program Files (x86)\windows\System Runner.exe
  "C:\Program Files (x86)\windows\System Runner.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\windows\System Runner.exe

Filesize
1.1MB

MD5
54347e3ae6be9d69ed6e88015e8a2db6

SHA1
dc582adf052059014ec7fdf151ad191fa85175ed

SHA256
394b08793f9fe3eb5fb28a5897ab9378eb8148139fd91644cc3f33c03f874919

SHA512
3210978088b571bd9fe1d14f1a4b483af28436b5730850fcad4e171616cf52b0a40ac210cf0cc565e17788fa83f2d5bb0fc1ae38ee721e80a1ccfa871a26458c

Download Submit
C:\Program Files (x86)\windows\System Runner.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Users\Admin\AppData\Roaming\System Interrupt Data.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
memory/2168-20-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2168-38-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2168-37-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2168-24-0x0000000004D60000-0x0000000004D70000-memory.dmp

Filesize
64KB

Download
memory/2168-23-0x0000000001020000-0x0000000001038000-memory.dmp

Filesize
96KB

Download
memory/2168-22-0x0000000001110000-0x000000000115E000-memory.dmp

Filesize
312KB

Download
memory/2168-18-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2168-21-0x0000000000950000-0x0000000000962000-memory.dmp

Filesize
72KB

Download
memory/2168-19-0x0000000001160000-0x000000000128E000-memory.dmp

Filesize
1.2MB

Download
memory/2388-5-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-17-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-6-0x0000000000520000-0x0000000000532000-memory.dmp

Filesize
72KB

Download
memory/2388-0-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/2388-3-0x00000000004B0000-0x00000000004BE000-memory.dmp

Filesize
56KB

Download
memory/2388-4-0x0000000002080000-0x00000000020DC000-memory.dmp

Filesize
368KB

Download
memory/2388-2-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-1-0x00000000001B0000-0x00000000002DE000-memory.dmp

Filesize
1.2MB

Download
memory/2628-35-0x00000000011A0000-0x00000000011A8000-memory.dmp

Filesize
32KB

Download