orcus | f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-11-2024 01:04

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General

Target

f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe
Size

915KB
MD5

19fa8a03adf350cd95bf2b1fc2573cda
SHA1

eea30cdea85c3b4afc41ab4801920adc505b60a0
SHA256

f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102
SHA512

72316d36d0617b5607e4b04e29378262ad181d15541196745f1a6bbafff0cb0bd24c44249258ff9da0d3bea144e597fb876d0ba9a09147ebfa0dddfe6add296f
SSDEEP

24576:YGq4MROxnFi37scrrcI0AilFEvxHPLoo9:YuMiogcrrcI0AilFEvxHP

Score

10^/10

orcus skr discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

skr

192.168.100.6:11111

Mutex

b3aa60325c6047f096cc62b26c15372c

Attributes

autostart_method
TaskScheduler
enable_keylogger
false
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
NvNodeLauncher_{B2F71952-0186-46C3-BAEC-A80AA35AC5B8}
taskscheduler_taskname
NvNodeLauncher_{B8FV1952-S1Y6-46D3-B8EC-A8VAA355C5B8}
watchdog_path
Temp\bcastdvr.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

resource	yara_rule
behavioral1/files/0x00060000000191ad-13.dat	family_orcus

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/2000-1-0x0000000000060000-0x000000000014C000-memory.dmp	orcus
behavioral1/files/0x00060000000191ad-13.dat	orcus
behavioral1/memory/536-19-0x0000000000C50000-0x0000000000D3C000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
536	Orcus.exe
2628	Orcus.exe
1400	bcastdvr.exe
2632	bcastdvr.exe

Loads dropped DLL 3 IoCs

pid	Process
2000	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe
536	Orcus.exe
1400	bcastdvr.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.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	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bcastdvr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bcastdvr.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
536	Orcus.exe
536	Orcus.exe
536	Orcus.exe
2632	bcastdvr.exe
2632	bcastdvr.exe
2632	bcastdvr.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
536	Orcus.exe
2632	bcastdvr.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
2632	bcastdvr.exe
536	Orcus.exe
2632	bcastdvr.exe
536	Orcus.exe
536	Orcus.exe
2632	bcastdvr.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	536	Orcus.exe
Token: SeDebugPrivilege	1400	bcastdvr.exe
Token: SeDebugPrivilege	2632	bcastdvr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
536	Orcus.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
536	Orcus.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 536	2000	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe	31
PID 2000 wrote to memory of 536	2000	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe	31
PID 2000 wrote to memory of 536	2000	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe	31
PID 2000 wrote to memory of 536	2000	f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe	31
PID 2060 wrote to memory of 2628	2060	taskeng.exe	33
PID 2060 wrote to memory of 2628	2060	taskeng.exe	33
PID 2060 wrote to memory of 2628	2060	taskeng.exe	33
PID 2060 wrote to memory of 2628	2060	taskeng.exe	33
PID 536 wrote to memory of 1400	536	Orcus.exe	34
PID 536 wrote to memory of 1400	536	Orcus.exe	34
PID 536 wrote to memory of 1400	536	Orcus.exe	34
PID 536 wrote to memory of 1400	536	Orcus.exe	34
PID 1400 wrote to memory of 2632	1400	bcastdvr.exe	35
PID 1400 wrote to memory of 2632	1400	bcastdvr.exe	35
PID 1400 wrote to memory of 2632	1400	bcastdvr.exe	35
PID 1400 wrote to memory of 2632	1400	bcastdvr.exe	35

C:\Users\Admin\AppData\Local\Temp\f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe
"C:\Users\Admin\AppData\Local\Temp\f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - 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:536
- - C:\Users\Admin\AppData\Local\Temp\bcastdvr.exe
    "C:\Users\Admin\AppData\Local\Temp\bcastdvr.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 536 /protectFile
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1400
  - - C:\Users\Admin\AppData\Local\Temp\bcastdvr.exe
      "C:\Users\Admin\AppData\Local\Temp\bcastdvr.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 536 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2632

C:\Windows\system32\taskeng.exe
taskeng.exe {1EC2B1EE-7C2A-4B6D-AED3-CA7F52CC3DAD} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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)\Orcus\Orcus.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft Hyper-V\err_b3aa60325c6047f096cc62b26c15372c.dat

Filesize
1KB

MD5
dace13e46bb2a5b72243f5f66fae7b4e

SHA1
697784304b76bedb197319f20dc470c82835f06f

SHA256
ffd16ac54fb33534b6fe4db13999462e23de895c3cccba3bccba92ddd4310cfc

SHA512
d28927a3c1c1c711342bd587a5dad6094e3e5cd13014bedc1dc33b29718011043667dad25f6bd50f3477db5ee12b941299168548b93d91705f2e0173ce4120b0

Download Submit
\Program Files (x86)\Orcus\Orcus.exe

Filesize
915KB

MD5
19fa8a03adf350cd95bf2b1fc2573cda

SHA1
eea30cdea85c3b4afc41ab4801920adc505b60a0

SHA256
f39d2fd8ade05fe148543b7f0ef29d50cc07e63f16ec68ebcbda78d254585102

SHA512
72316d36d0617b5607e4b04e29378262ad181d15541196745f1a6bbafff0cb0bd24c44249258ff9da0d3bea144e597fb876d0ba9a09147ebfa0dddfe6add296f

Download Submit
\Users\Admin\AppData\Local\Temp\bcastdvr.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
memory/536-22-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/536-27-0x0000000002220000-0x0000000002238000-memory.dmp

Filesize
96KB

Download
memory/536-43-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/536-42-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/536-28-0x0000000004400000-0x0000000004410000-memory.dmp

Filesize
64KB

Download
memory/536-26-0x0000000000BE0000-0x0000000000C2E000-memory.dmp

Filesize
312KB

Download
memory/536-23-0x0000000000390000-0x00000000003A2000-memory.dmp

Filesize
72KB

Download
memory/536-21-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/536-19-0x0000000000C50000-0x0000000000D3C000-memory.dmp

Filesize
944KB

Download
memory/1400-39-0x0000000000950000-0x0000000000958000-memory.dmp

Filesize
32KB

Download
memory/2000-20-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2000-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2000-2-0x0000000000510000-0x000000000051E000-memory.dmp

Filesize
56KB

Download
memory/2000-3-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2000-5-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/2000-4-0x0000000000550000-0x00000000005AC000-memory.dmp

Filesize
368KB

Download
memory/2000-1-0x0000000000060000-0x000000000014C000-memory.dmp

Filesize
944KB

Download
memory/2000-7-0x0000000001EE0000-0x0000000001EE8000-memory.dmp

Filesize
32KB

Download
memory/2000-6-0x0000000000840000-0x0000000000848000-memory.dmp

Filesize
32KB

Download