orcus | 1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283

General

Target

1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
Size

1.7MB
MD5

3e95e7842eb6e21c184e8df98b354dc5
SHA1

e90e735c6ac94c419c0534a3f8fd812aaf7fa377
SHA256

1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283
SHA512

0d862a255dda394d64c9be14c2d05a6d6fb854c53a323b50c097edfe52457fdada0a0fe0576ca3223e613dce30f5af2a50fd39ea53ef8cb453a5ea27844f6de7
SSDEEP

49152:w7X3f/7Iflsm9BQGIt1G3LhGMiuvjzQNgQILFSth2pQ:wD/qsuQGItE3dGo

Score

10^/10

orcus discovery persistence rat spyware stealer vmprotect

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

Processes:

resource	yara_rule
\Program Files (x86)\Orcus\Orcus.exe	family_orcus

Orcurs Rat Executable 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2152-1-0x00000000001A0000-0x000000000046C000-memory.dmp	orcus
\Program Files (x86)\Orcus\Orcus.exe	orcus
behavioral1/memory/1816-35-0x0000000000AF0000-0x0000000000DBC000-memory.dmp	orcus

Executes dropped EXE 6 IoCs

Processes:

WindowsInput.exeWindowsInput.exeOrcus.exeOrcus.exesvchost.exesvchost.exe

pid process

3044 WindowsInput.exe
2784 WindowsInput.exe
1816 Orcus.exe
892 Orcus.exe
2420 svchost.exe
2104 svchost.exe

pid	process
3044	WindowsInput.exe
2784	WindowsInput.exe
1816	Orcus.exe
892	Orcus.exe
2420	svchost.exe
2104	svchost.exe

Loads dropped DLL 3 IoCs

Processes:

1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exeOrcus.exe

pid	process
2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
1816	Orcus.exe

VMProtect packed file 3 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral1/memory/2152-1-0x00000000001A0000-0x000000000046C000-memory.dmp	vmprotect
\Program Files (x86)\Orcus\Orcus.exe	vmprotect
behavioral1/memory/1816-35-0x0000000000AF0000-0x0000000000DBC000-memory.dmp	vmprotect

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Orcus.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files (x86)\\Orcus\\Orcus.exe\""	Orcus.exe

Drops file in System32 directory 3 IoCs

Processes:

1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exeWindowsInput.exe

description	ioc	process
File created	C:\Windows\SysWOW64\WindowsInput.exe	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe

Drops file in Program Files directory 3 IoCs

Processes:

1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe

description	ioc	process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.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

Processes:

1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exeOrcus.exeOrcus.exesvchost.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exeOrcus.exe

pid	process
2104	svchost.exe
2104	svchost.exe
2104	svchost.exe
1816	Orcus.exe
1816	Orcus.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe
2104	svchost.exe
1816	Orcus.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Orcus.exesvchost.exesvchost.exe

description pid process

Token: SeDebugPrivilege 1816 Orcus.exe
Token: SeDebugPrivilege 2420 svchost.exe
Token: SeDebugPrivilege 2104 svchost.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

Orcus.exe

pid process

1816 Orcus.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Orcus.exe

pid process

1816 Orcus.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Orcus.exe

pid process

1816 Orcus.exe

description	pid	process
Token: SeDebugPrivilege	1816	Orcus.exe
Token: SeDebugPrivilege	2420	svchost.exe
Token: SeDebugPrivilege	2104	svchost.exe

pid	process
1816	Orcus.exe

pid	process
1816	Orcus.exe

pid	process
1816	Orcus.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exetaskeng.exeOrcus.exesvchost.exe

description	pid	process	target process
PID 2152 wrote to memory of 3044	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	WindowsInput.exe
PID 2152 wrote to memory of 3044	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	WindowsInput.exe
PID 2152 wrote to memory of 3044	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	WindowsInput.exe
PID 2152 wrote to memory of 3044	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	WindowsInput.exe
PID 2152 wrote to memory of 1816	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	Orcus.exe
PID 2152 wrote to memory of 1816	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	Orcus.exe
PID 2152 wrote to memory of 1816	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	Orcus.exe
PID 2152 wrote to memory of 1816	2152	1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe	Orcus.exe
PID 1520 wrote to memory of 892	1520	taskeng.exe	Orcus.exe
PID 1520 wrote to memory of 892	1520	taskeng.exe	Orcus.exe
PID 1520 wrote to memory of 892	1520	taskeng.exe	Orcus.exe
PID 1520 wrote to memory of 892	1520	taskeng.exe	Orcus.exe
PID 1816 wrote to memory of 2420	1816	Orcus.exe	svchost.exe
PID 1816 wrote to memory of 2420	1816	Orcus.exe	svchost.exe
PID 1816 wrote to memory of 2420	1816	Orcus.exe	svchost.exe
PID 1816 wrote to memory of 2420	1816	Orcus.exe	svchost.exe
PID 2420 wrote to memory of 2104	2420	svchost.exe	svchost.exe
PID 2420 wrote to memory of 2104	2420	svchost.exe	svchost.exe
PID 2420 wrote to memory of 2104	2420	svchost.exe	svchost.exe
PID 2420 wrote to memory of 2104	2420	svchost.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe
"C:\Users\Admin\AppData\Local\Temp\1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:3044
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.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:1816
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 1816 /protectFile
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2420
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 1816 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2104

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2784

C:\Windows\system32\taskeng.exe
taskeng.exe {53368F50-FE9F-46A0-8D1D-93681BD03AF8} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1520
- 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:892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Orcus\err_616472cdd55f4e95988997971c371b81.dat

Filesize
1KB

MD5
5a8d827f422241dac21a2d30072cf12e

SHA1
328e3628c846f313224bc726b8733c5b587536e5

SHA256
fc5701914f5b257b110bbfa8f4b7b86cbc4ea183704d4801201f0f82dbc8b6ff

SHA512
f14b42b1ff63a44473cc9f469d004531c274307015039573bf817d0ac7b977ac2bf3b9cc7cdace38b2ad5dc3e8ec6d026aa271f46d6e34a497728c84fc8f31a5

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

Filesize
1.7MB

MD5
3e95e7842eb6e21c184e8df98b354dc5

SHA1
e90e735c6ac94c419c0534a3f8fd812aaf7fa377

SHA256
1efa0f315bd7205d8856c9bedf5a95c3ae0bddc09995a4cfc792e63deaa66283

SHA512
0d862a255dda394d64c9be14c2d05a6d6fb854c53a323b50c097edfe52457fdada0a0fe0576ca3223e613dce30f5af2a50fd39ea53ef8cb453a5ea27844f6de7

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

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

Download Submit
memory/1816-42-0x0000000002340000-0x0000000002350000-memory.dmp

Filesize
64KB

Download
memory/1816-41-0x0000000000AD0000-0x0000000000AE8000-memory.dmp

Filesize
96KB

Download
memory/1816-40-0x00000000044A0000-0x00000000044EE000-memory.dmp

Filesize
312KB

Download
memory/1816-37-0x00000000004B0000-0x00000000004C2000-memory.dmp

Filesize
72KB

Download
memory/1816-35-0x0000000000AF0000-0x0000000000DBC000-memory.dmp

Filesize
2.8MB

Download
memory/2152-6-0x0000000000B40000-0x0000000000B9C000-memory.dmp

Filesize
368KB

Download
memory/2152-5-0x0000000000640000-0x000000000064E000-memory.dmp

Filesize
56KB

Download
memory/2152-1-0x00000000001A0000-0x000000000046C000-memory.dmp

Filesize
2.8MB

Download
memory/2152-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2152-3-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2152-4-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2152-8-0x0000000000830000-0x0000000000838000-memory.dmp

Filesize
32KB

Download
memory/2152-36-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2152-7-0x0000000000750000-0x0000000000762000-memory.dmp

Filesize
72KB

Download
memory/2152-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/2152-9-0x0000000000850000-0x0000000000858000-memory.dmp

Filesize
32KB

Download
memory/2420-53-0x0000000001090000-0x0000000001098000-memory.dmp

Filesize
32KB

Download
memory/3044-24-0x000007FEF6400000-0x000007FEF6DEC000-memory.dmp

Filesize
9.9MB

Download
memory/3044-21-0x000007FEF6400000-0x000007FEF6DEC000-memory.dmp

Filesize
9.9MB

Download
memory/3044-20-0x0000000000C00000-0x0000000000C0C000-memory.dmp

Filesize
48KB

Download
memory/3044-18-0x000007FEF6403000-0x000007FEF6404000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads