orcus | f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 01:11

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General

Target

f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe
Size

920KB
MD5

b08bc930dc90e54bc888a9b8195ecc12
SHA1

3019337f580bdc0c54c01a79e5144143fe10f17d
SHA256

f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8
SHA512

c3b8f048730ce8a0ac767bcdf970189af6034a2a7e6e7360b111f83008b32665c4f6cc9e23e4cbe8228931f1a0a56bfe1c89a776aafbbe49b898814fe38c3f20
SSDEEP

24576:bwV4MROxnFZ3+kTZ1rZlI0AilFEvxHirXrD4:bwCMi7nrZlI0AilFEvxHir

Score

10^/10

orcus fake2 discovery persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

fake2

192.168.50.22:10134

Mutex

d4279019eb0e484a85ded599a3e44bc6

Attributes

autostart_method
Registry
enable_keylogger
false
install_path
%appdata%\fake2\fake2.exe
reconnect_delay
10000
registry_keyname
fake2
taskscheduler_taskname
fakee2
watchdog_path
AppData\fake2.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/0x0009000000016d21-39.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016d21-39.dat	orcus
behavioral1/memory/2776-43-0x0000000000EF0000-0x0000000000FDC000-memory.dmp	orcus

Executes dropped EXE 6 IoCs

pid	Process
2852	WindowsInput.exe
2804	WindowsInput.exe
2776	fake2.exe
1544	fake2.exe
2928	fake2.exe
1808	fake2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\fake2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\fake2\\fake2.exe\""	fake2.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.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 2 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	fake2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fake2.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1808	fake2.exe
1808	fake2.exe
2776	fake2.exe
2776	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
1808	fake2.exe
2776	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
1808	fake2.exe
2776	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
1808	fake2.exe
2776	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
1808	fake2.exe
2776	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe
2776	fake2.exe
1808	fake2.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	fake2.exe
Token: SeDebugPrivilege	1808	fake2.exe
Token: SeDebugPrivilege	2776	fake2.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2428	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	30
PID 1968 wrote to memory of 2428	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	30
PID 1968 wrote to memory of 2428	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	30
PID 2428 wrote to memory of 2980	2428	csc.exe	32
PID 2428 wrote to memory of 2980	2428	csc.exe	32
PID 2428 wrote to memory of 2980	2428	csc.exe	32
PID 1968 wrote to memory of 2852	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	33
PID 1968 wrote to memory of 2852	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	33
PID 1968 wrote to memory of 2852	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	33
PID 1968 wrote to memory of 2776	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	35
PID 1968 wrote to memory of 2776	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	35
PID 1968 wrote to memory of 2776	1968	f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe	35
PID 996 wrote to memory of 1544	996	taskeng.exe	37
PID 996 wrote to memory of 1544	996	taskeng.exe	37
PID 996 wrote to memory of 1544	996	taskeng.exe	37
PID 2776 wrote to memory of 2928	2776	fake2.exe	38
PID 2776 wrote to memory of 2928	2776	fake2.exe	38
PID 2776 wrote to memory of 2928	2776	fake2.exe	38
PID 2776 wrote to memory of 2928	2776	fake2.exe	38
PID 2928 wrote to memory of 1808	2928	fake2.exe	39
PID 2928 wrote to memory of 1808	2928	fake2.exe	39
PID 2928 wrote to memory of 1808	2928	fake2.exe	39
PID 2928 wrote to memory of 1808	2928	fake2.exe	39

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe
"C:\Users\Admin\AppData\Local\Temp\f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\bfr3shln.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES8595.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC8594.tmp"
    3⤵
    PID:2980
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2852
- C:\Users\Admin\AppData\Roaming\fake2\fake2.exe
  "C:\Users\Admin\AppData\Roaming\fake2\fake2.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Users\Admin\AppData\Roaming\fake2.exe
    "C:\Users\Admin\AppData\Roaming\fake2.exe" /launchSelfAndExit "C:\Users\Admin\AppData\Roaming\fake2\fake2.exe" 2776 /protectFile
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2928
  - - C:\Users\Admin\AppData\Roaming\fake2.exe
      "C:\Users\Admin\AppData\Roaming\fake2.exe" /watchProcess "C:\Users\Admin\AppData\Roaming\fake2\fake2.exe" 2776 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1808

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2804

C:\Windows\system32\taskeng.exe
taskeng.exe {AFFECF9A-90A5-45AC-A5BA-A73BE1133D55} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:996
- C:\Users\Admin\AppData\Roaming\fake2\fake2.exe
  C:\Users\Admin\AppData\Roaming\fake2\fake2.exe
  2⤵
  - Executes dropped EXE
  PID:1544

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RES8595.tmp

Filesize
1KB

MD5
1f727fe360a2f92c4728f39ca48f4de2

SHA1
1fcb701711c667dff6fe9fbcf517cad8d6052782

SHA256
8eb1f67a119fc1438fcd80a04d3dea28afd9d699ac9f3a368cb50e7241e0a054

SHA512
9dfba258647e13d1fc4fce4bfb935fb6234355e89a30e176aa30a8a8950a195ab2c474c5f7a97ca0abc99f3d52728d6604e25445adafcd305f4cc337c3b948c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\bfr3shln.dll

Filesize
76KB

MD5
1bfe730d6e2b1cd6ff0356f15b3c80fd

SHA1
f1f7127827354ffe509f720ae7d3a89400f69104

SHA256
55d23ff2e9f88d234c3d5e199dbe8f6c7ce9bc1ee8b9476bfaa25286e33c3ea8

SHA512
615b510d73a3c131b4bbbac58970892987e12d6372cee992a2045f36a9cb65e79525d6c12fbef696ccbf63f7e552571330dbfa15b2eb661454adf7b6234eb0ce

Download Submit
C:\Users\Admin\AppData\Roaming\fake2.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
C:\Users\Admin\AppData\Roaming\fake2\fake2.exe

Filesize
920KB

MD5
b08bc930dc90e54bc888a9b8195ecc12

SHA1
3019337f580bdc0c54c01a79e5144143fe10f17d

SHA256
f15288549b3206cac5192ee6449f4b1f2ed796e3a7e72dad63b239e4660447f8

SHA512
c3b8f048730ce8a0ac767bcdf970189af6034a2a7e6e7360b111f83008b32665c4f6cc9e23e4cbe8228931f1a0a56bfe1c89a776aafbbe49b898814fe38c3f20

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

Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSC8594.tmp

Filesize
676B

MD5
8c00d634b7baf7d8f8db0151dbe17550

SHA1
3ab3d5588c38d17120934b271d56fbefc20ab391

SHA256
49994be07caa29d4d25b6a86ce33c29ec04c42232979c799612e57ca53fabbca

SHA512
279e4712dc8519d13ce9dae51fbd2efb877f19e97f753b32c1b2d714cd5ce4cd8484608b34288d80f8e3642269ed67a28cf263951eedc62333655b0e16df84b3

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\bfr3shln.0.cs

Filesize
208KB

MD5
54511f23d6e93f391ec061e65eb8ecba

SHA1
cf4d8d8b57a36cfd710d41020e09d2816c692725

SHA256
66c5f9da5b51fbe62b5c8ca38dca18f90f226df574a4caf0ffdd0e5c1211edbe

SHA512
39f77b2a752f36918b4ccd286ac428302d37a8edd566a0226cd1c000a6fc029e8c05f8cc90de21143a678fcae62c28bf05e94d454c193f32c21a3448c0046116

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\bfr3shln.cmdline

Filesize
349B

MD5
ceafc081b003812cecd81a82f02fabae

SHA1
f418dfacec31131f35e15a08b136f46ef9532512

SHA256
700911825d2e2c50cdac3a67f4d12ac076e599a7468bb686451ec8a88718a67d

SHA512
e29be4c075424f0ccbdf4856e2477600d19dd7987de6ee0b2a51aa2f90ee7768ddb5198307232c760c88590a01ab1d4681f51bbd090a6050355c02d11ecff7b0

Download Submit
memory/1968-19-0x00000000005D0000-0x00000000005E6000-memory.dmp

Filesize
88KB

Download
memory/1968-0-0x000007FEF5B8E000-0x000007FEF5B8F000-memory.dmp

Filesize
4KB

Download
memory/1968-1-0x0000000002130000-0x000000000218C000-memory.dmp

Filesize
368KB

Download
memory/1968-2-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1968-21-0x0000000000430000-0x0000000000442000-memory.dmp

Filesize
72KB

Download
memory/1968-4-0x000007FEF58D0000-0x000007FEF626D000-memory.dmp

Filesize
9.6MB

Download
memory/1968-3-0x000007FEF58D0000-0x000007FEF626D000-memory.dmp

Filesize
9.6MB

Download
memory/1968-42-0x000007FEF58D0000-0x000007FEF626D000-memory.dmp

Filesize
9.6MB

Download
memory/2428-17-0x000007FEF58D0000-0x000007FEF626D000-memory.dmp

Filesize
9.6MB

Download
memory/2428-10-0x000007FEF58D0000-0x000007FEF626D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-43-0x0000000000EF0000-0x0000000000FDC000-memory.dmp

Filesize
944KB

Download
memory/2776-44-0x0000000000D00000-0x0000000000D4E000-memory.dmp

Filesize
312KB

Download
memory/2776-45-0x0000000000D70000-0x0000000000D88000-memory.dmp

Filesize
96KB

Download
memory/2776-46-0x0000000000D90000-0x0000000000DA0000-memory.dmp

Filesize
64KB

Download
memory/2804-33-0x0000000000370000-0x000000000037C000-memory.dmp

Filesize
48KB

Download
memory/2852-29-0x0000000000210000-0x000000000021C000-memory.dmp

Filesize
48KB

Download
memory/2928-56-0x0000000000BB0000-0x0000000000BB8000-memory.dmp

Filesize
32KB

Download