orcus | 4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7

Analysis

max time kernel
150s
max time network
157s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-11-2024 01:11

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General

Target

4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe
Size

915KB
MD5

a9cae5465fa52c998fe6c00ed4fbcc75
SHA1

39827f5b4f8c0e7dc5eda6223950b69e944f55af
SHA256

4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7
SHA512

f13a2bbc192991ed5f923695178fbe984fe41f027bdae59ee5e8592054693dc8af052b7aa6554cc5843b9153184409435c1a764c84fcc5f4b966e668e6d814e5
SSDEEP

24576:nIY4MROxnFi3gs7rrcI0AilFEvxHPMzoo8:naMioV7rrcI0AilFEvxHP

Score

10^/10

orcus discovery persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

192.168.100.46:4848

Mutex

f35fb9764efd47bd8521777d184ea43e

Attributes

autostart_method
TaskScheduler
enable_keylogger
true
install_path
%programfiles%\Win\32.exe
reconnect_delay
10000
registry_keyname
.
taskscheduler_taskname
.
watchdog_path
AppData\Soft.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

Processes:

resource	yara_rule
behavioral1/files/0x0008000000016d31-13.dat	family_orcus

Orcurs Rat Executable 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2536-1-0x00000000003E0000-0x00000000004CA000-memory.dmp	orcus
behavioral1/files/0x0008000000016d31-13.dat	orcus
behavioral1/memory/1932-19-0x00000000002E0000-0x00000000003CA000-memory.dmp	orcus

Executes dropped EXE 3 IoCs

Processes:

32.exeSoft.exeSoft.exe

pid	Process
1932	32.exe
2692	Soft.exe
2648	Soft.exe

Loads dropped DLL 2 IoCs

Processes:

4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe32.exe

pid	Process
2536	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe
1932	32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

32.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\. = "\"C:\\Program Files (x86)\\Win\\32.exe\""	32.exe

Drops file in Program Files directory 3 IoCs

Processes:

4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe

description	ioc	Process
File created	C:\Program Files (x86)\Win\32.exe	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe
File opened for modification	C:\Program Files (x86)\Win\32.exe	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe
File created	C:\Program Files (x86)\Win\32.exe.config	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.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 4 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

Processes:

4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe32.exeSoft.exeSoft.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soft.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

Soft.exe32.exe

pid	Process
2648	Soft.exe
2648	Soft.exe
2648	Soft.exe
1932	32.exe
1932	32.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe
2648	Soft.exe
1932	32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

32.exeSoft.exeSoft.exe

description	pid	Process
Token: SeDebugPrivilege	1932	32.exe
Token: SeDebugPrivilege	2692	Soft.exe
Token: SeDebugPrivilege	2648	Soft.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

32.exe

pid	Process
1932	32.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

32.exe

pid	Process
1932	32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

32.exe

pid	Process
1932	32.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe32.exeSoft.exe

description	pid	Process	procid_target
PID 2536 wrote to memory of 1932	2536	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe	31
PID 2536 wrote to memory of 1932	2536	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe	31
PID 2536 wrote to memory of 1932	2536	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe	31
PID 2536 wrote to memory of 1932	2536	4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe	31
PID 1932 wrote to memory of 2692	1932	32.exe	32
PID 1932 wrote to memory of 2692	1932	32.exe	32
PID 1932 wrote to memory of 2692	1932	32.exe	32
PID 1932 wrote to memory of 2692	1932	32.exe	32
PID 2692 wrote to memory of 2648	2692	Soft.exe	33
PID 2692 wrote to memory of 2648	2692	Soft.exe	33
PID 2692 wrote to memory of 2648	2692	Soft.exe	33
PID 2692 wrote to memory of 2648	2692	Soft.exe	33

C:\Users\Admin\AppData\Local\Temp\4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe
"C:\Users\Admin\AppData\Local\Temp\4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Program Files (x86)\Win\32.exe
  "C:\Program Files (x86)\Win\32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1932
- - C:\Users\Admin\AppData\Roaming\Soft.exe
    "C:\Users\Admin\AppData\Roaming\Soft.exe" /launchSelfAndExit "C:\Program Files (x86)\Win\32.exe" 1932 /protectFile
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2692
  - - C:\Users\Admin\AppData\Roaming\Soft.exe
      "C:\Users\Admin\AppData\Roaming\Soft.exe" /watchProcess "C:\Program Files (x86)\Win\32.exe" 1932 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Win\32.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Roaming\system WIN32\err_f35fb9764efd47bd8521777d184ea43e.dat

Filesize
1KB

MD5
4c09a7a07ac0ce18da1d19630e57355f

SHA1
6534ca68637c44ed3d0ddc997f08d93b1bf0a293

SHA256
fbd4db5e90e054980d0a4c7018d38fea2ce36fa037fced476613495411cc6001

SHA512
3f33ffda3ed86b4e1319eef92408479c70d8905bb387bb8da39bb3fd0759119356eddced6256cb4ebac478cb3570b6ce31f78e10f561728c8e5f14effd0056f3

Download Submit
\Program Files (x86)\Win\32.exe

Filesize
915KB

MD5
a9cae5465fa52c998fe6c00ed4fbcc75

SHA1
39827f5b4f8c0e7dc5eda6223950b69e944f55af

SHA256
4294cdd98649dfd3e7599b8140e1fd0fc5b6cf8b1d1bec61303e4c3f0789b3a7

SHA512
f13a2bbc192991ed5f923695178fbe984fe41f027bdae59ee5e8592054693dc8af052b7aa6554cc5843b9153184409435c1a764c84fcc5f4b966e668e6d814e5

Download Submit
\Users\Admin\AppData\Roaming\Soft.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
memory/1932-25-0x00000000021F0000-0x000000000223E000-memory.dmp

Filesize
312KB

Download
memory/1932-27-0x00000000043C0000-0x00000000043D0000-memory.dmp

Filesize
64KB

Download
memory/1932-41-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/1932-40-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/1932-28-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/1932-26-0x0000000004340000-0x0000000004358000-memory.dmp

Filesize
96KB

Download
memory/1932-19-0x00000000002E0000-0x00000000003CA000-memory.dmp

Filesize
936KB

Download
memory/1932-20-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/1932-22-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2536-21-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2536-2-0x0000000000200000-0x000000000020E000-memory.dmp

Filesize
56KB

Download
memory/2536-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2536-3-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2536-5-0x00000000003C0000-0x00000000003D2000-memory.dmp

Filesize
72KB

Download
memory/2536-4-0x0000000001FD0000-0x000000000202C000-memory.dmp

Filesize
368KB

Download
memory/2536-1-0x00000000003E0000-0x00000000004CA000-memory.dmp

Filesize
936KB

Download
memory/2536-7-0x0000000000690000-0x0000000000698000-memory.dmp

Filesize
32KB

Download
memory/2536-6-0x0000000000680000-0x0000000000688000-memory.dmp

Filesize
32KB

Download
memory/2692-38-0x0000000001120000-0x0000000001128000-memory.dmp

Filesize
32KB

Download