orcus | cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e

Analysis

max time kernel
126s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-12-2024 01:02

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General

Target

cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe
Size

3.0MB
MD5

75785429ec057cf563dec468d1048a18
SHA1

495bbf43c88514d4bc60d0cb6deafd4465aea4ed
SHA256

cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e
SHA512

a752528e0b43320e48b4da8e76bda59ec8d4ce212b207aaa8927520aa2b6c15bd28a148f457f561a693ebbd676918c980e544c547d29e244690e2347f6f1e5fa
SSDEEP

49152:2P7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpiu/nRFfjI7L0qb+:2PHTPJg8z1mKnypSbRxo9JCm3

Score

10^/10

orcus mamont discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

Mamont

31.44.184.52:38135

Mutex

sudo_hukjod904skbxj09l4njrec7guj3gu0r

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
C:\ProgramData\$77RegAsm.exe
reconnect_delay
10000
registry_keyname
Sudik
taskscheduler_taskname
sudik
watchdog_path
AppData\aga.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/0x0008000000016da7-13.dat	family_orcus

Orcurs Rat Executable 11 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016da7-13.dat	orcus
behavioral1/memory/1708-17-0x0000000000400000-0x0000000000704000-memory.dmp	orcus
behavioral1/memory/2056-19-0x0000000001310000-0x000000000160E000-memory.dmp	orcus
behavioral1/memory/2724-33-0x00000000003F0000-0x00000000006EE000-memory.dmp	orcus
behavioral1/memory/2596-47-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2596-46-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2596-42-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2596-40-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2596-45-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/3056-52-0x0000000000320000-0x000000000061E000-memory.dmp	orcus
behavioral1/memory/2328-72-0x00000000013A0000-0x000000000169E000-memory.dmp	orcus

Executes dropped EXE 6 IoCs

pid	Process
1636	JJSploit_8.10.7_x64-setup.exe
2056	JJSploit_8.10.7_x64-setup_bundle.exe
2724	$77RegAsm.exe
3056	$77RegAsm.exe
2328	$77RegAsm.exe
2520	$77RegAsm.exe

Loads dropped DLL 6 IoCs

pid	Process
1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe
1636	JJSploit_8.10.7_x64-setup.exe
1636	JJSploit_8.10.7_x64-setup.exe
1636	JJSploit_8.10.7_x64-setup.exe
1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe
2056	JJSploit_8.10.7_x64-setup_bundle.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2596	2724	$77RegAsm.exe	35

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 8 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	$77RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	$77RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	$77RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JJSploit_8.10.7_x64-setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JJSploit_8.10.7_x64-setup_bundle.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	$77RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2056	JJSploit_8.10.7_x64-setup_bundle.exe
2724	$77RegAsm.exe
2724	$77RegAsm.exe
2596	regasm.exe
2596	regasm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	JJSploit_8.10.7_x64-setup_bundle.exe
Token: SeDebugPrivilege	2724	$77RegAsm.exe
Token: SeDebugPrivilege	2596	regasm.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1636	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	31
PID 1708 wrote to memory of 1636	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	31
PID 1708 wrote to memory of 1636	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	31
PID 1708 wrote to memory of 1636	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	31
PID 1708 wrote to memory of 1636	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	31
PID 1708 wrote to memory of 1636	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	31
PID 1708 wrote to memory of 1636	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	31
PID 1708 wrote to memory of 2056	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	32
PID 1708 wrote to memory of 2056	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	32
PID 1708 wrote to memory of 2056	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	32
PID 1708 wrote to memory of 2056	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	32
PID 1708 wrote to memory of 2056	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	32
PID 1708 wrote to memory of 2056	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	32
PID 1708 wrote to memory of 2056	1708	cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe	32
PID 2056 wrote to memory of 2724	2056	JJSploit_8.10.7_x64-setup_bundle.exe	33
PID 2056 wrote to memory of 2724	2056	JJSploit_8.10.7_x64-setup_bundle.exe	33
PID 2056 wrote to memory of 2724	2056	JJSploit_8.10.7_x64-setup_bundle.exe	33
PID 2056 wrote to memory of 2724	2056	JJSploit_8.10.7_x64-setup_bundle.exe	33
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2724 wrote to memory of 2596	2724	$77RegAsm.exe	35
PID 2860 wrote to memory of 3056	2860	taskeng.exe	36
PID 2860 wrote to memory of 3056	2860	taskeng.exe	36
PID 2860 wrote to memory of 3056	2860	taskeng.exe	36
PID 2860 wrote to memory of 3056	2860	taskeng.exe	36
PID 2860 wrote to memory of 2328	2860	taskeng.exe	38
PID 2860 wrote to memory of 2328	2860	taskeng.exe	38
PID 2860 wrote to memory of 2328	2860	taskeng.exe	38
PID 2860 wrote to memory of 2328	2860	taskeng.exe	38
PID 2860 wrote to memory of 2520	2860	taskeng.exe	40
PID 2860 wrote to memory of 2520	2860	taskeng.exe	40
PID 2860 wrote to memory of 2520	2860	taskeng.exe	40
PID 2860 wrote to memory of 2520	2860	taskeng.exe	40

C:\Users\Admin\AppData\Local\Temp\cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe
"C:\Users\Admin\AppData\Local\Temp\cb7b2073f4b7a81d1e0879dc71338a2088004597310d1f9bd381648e20cae23e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\JJSploit_8.10.7_x64-setup.exe
  "C:\Users\Admin\AppData\Local\Temp\JJSploit_8.10.7_x64-setup.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1636
- C:\Users\Admin\AppData\Local\Temp\JJSploit_8.10.7_x64-setup_bundle.exe
  "C:\Users\Admin\AppData\Local\Temp\JJSploit_8.10.7_x64-setup_bundle.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\ProgramData\$77RegAsm.exe
    "C:\ProgramData\$77RegAsm.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2724
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2596

C:\Windows\system32\taskeng.exe
taskeng.exe {1216C678-1EE7-4E41-B5C8-AE280CCAC6FE} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2860
- C:\ProgramData\$77RegAsm.exe
  C:\ProgramData\$77RegAsm.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\ProgramData\$77RegAsm.exe
  C:\ProgramData\$77RegAsm.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\ProgramData\$77RegAsm.exe
  C:\ProgramData\$77RegAsm.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\$77RegAsm.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab1798.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
\Users\Admin\AppData\Local\Temp\JJSploit_8.10.7_x64-setup.exe

Filesize
9KB

MD5
26abb9e459e5976f658ce80d6433f1b1

SHA1
3c8f02c1cf7b8ae82be3deea4b360497f6fee1c3

SHA256
60cc77b5d4210cef0a9032908b179142f212155426fdae48055c5f72811f7a12

SHA512
c2c02aa1db8036c7309100bb683ec7708fedfb129d763d86e03d9d6adc3688423ec04cb5b596eaf99300787f90d641e53350e1ceed0e8b11d6f29333e04b4ce8

Download Submit
\Users\Admin\AppData\Local\Temp\JJSploit_8.10.7_x64-setup_bundle.exe

Filesize
3.0MB

MD5
a5c760e458503463ed3902bdbf605e4e

SHA1
2fb83c914783070267e42dbad89fd2c7afc9d9af

SHA256
790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32

SHA512
5b905facc4db2afb1dec0460b965c705c2566d91e2db7a95bc23cbd7dc8cbdb9414d4b4a6306e7a57d5ff4eb658910f12497608d5442cc5d8c740dc5be446b5b

Download Submit
memory/1636-11-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1708-17-0x0000000000400000-0x0000000000704000-memory.dmp

Filesize
3.0MB

Download
memory/2056-19-0x0000000001310000-0x000000000160E000-memory.dmp

Filesize
3.0MB

Download
memory/2056-20-0x0000000000350000-0x000000000035E000-memory.dmp

Filesize
56KB

Download
memory/2056-21-0x0000000000A30000-0x0000000000A8C000-memory.dmp

Filesize
368KB

Download
memory/2056-22-0x00000000009E0000-0x00000000009F2000-memory.dmp

Filesize
72KB

Download
memory/2328-72-0x00000000013A0000-0x000000000169E000-memory.dmp

Filesize
3.0MB

Download
memory/2596-47-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2596-48-0x0000000000930000-0x0000000000942000-memory.dmp

Filesize
72KB

Download
memory/2596-38-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2596-70-0x0000000000E70000-0x0000000000E72000-memory.dmp

Filesize
8KB

Download
memory/2596-46-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2596-44-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2596-42-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2596-40-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2596-45-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2596-36-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2596-49-0x00000000009F0000-0x0000000000A08000-memory.dmp

Filesize
96KB

Download
memory/2596-50-0x0000000000A40000-0x0000000000A50000-memory.dmp

Filesize
64KB

Download
memory/2596-69-0x0000000000C50000-0x0000000000C5E000-memory.dmp

Filesize
56KB

Download
memory/2724-34-0x00000000003E0000-0x00000000003F2000-memory.dmp

Filesize
72KB

Download
memory/2724-35-0x0000000000880000-0x00000000008CE000-memory.dmp

Filesize
312KB

Download
memory/2724-33-0x00000000003F0000-0x00000000006EE000-memory.dmp

Filesize
3.0MB

Download
memory/3056-52-0x0000000000320000-0x000000000061E000-memory.dmp

Filesize
3.0MB

Download