orcus | 7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e

General

Target

7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe
Size

918KB
MD5

de8e68b535ec5e52cf9869f8da859b51
SHA1

5dbbaff2683785332ba1efa276865d6f874d0e1b
SHA256

7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e
SHA512

8f5b291c889d66222bef4bdefa846315ef37f8139271ea9a89bc6296955109fed10a90e65fb6bfe8168e78d14262066bc769adf5cdc15fc996af039dba196ef4
SSDEEP

24576:fVQg4MROxnFD3irXYf1rrcI0AilFEvxHP+ooU:dmMiJ/rrcI0AilFEvxHP

Score

10^/10

orcus rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

127.0.0.1:10134

Mutex

316bd05012dc47dcafa9a06af7241f8a

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%programfiles%\Windows Defender
reconnect_delay
10000
registry_keyname
Windows Realtek Audio Driver
taskscheduler_taskname
Windows Realtek Audio Driver
watchdog_path
Temp\Windows Realtek Audio Driver.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus

Orcurs Rat Executable 1 IoCs

resource	yara_rule
behavioral1/memory/2876-0-0x00000000008C0000-0x00000000009AC000-memory.dmp	orcus

Executes dropped EXE 2 IoCs

pid	Process
2944	WindowsInput.exe
2556	WindowsInput.exe

Loads dropped DLL 1 IoCs

pid	Process
2876	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Defender	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2944	2876	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe	28
PID 2876 wrote to memory of 2944	2876	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe	28
PID 2876 wrote to memory of 2944	2876	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe	28
PID 2876 wrote to memory of 2944	2876	7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe	28

C:\Users\Admin\AppData\Local\Temp\7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe
"C:\Users\Admin\AppData\Local\Temp\7acde10336ba1e4e9b6d9cfbf7c3fba0cc4aacf3762d2cff996409f9c201c79e.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2944

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

Download Submit
memory/2556-25-0x000007FEF5040000-0x000007FEF5A2C000-memory.dmp

Filesize
9.9MB

Download
memory/2556-23-0x0000000000C10000-0x0000000000C90000-memory.dmp

Filesize
512KB

Download
memory/2556-21-0x0000000001270000-0x000000000127C000-memory.dmp

Filesize
48KB

Download
memory/2556-22-0x000007FEF5040000-0x000007FEF5A2C000-memory.dmp

Filesize
9.9MB

Download
memory/2876-4-0x0000000000290000-0x00000000002EC000-memory.dmp

Filesize
368KB

Download
memory/2876-5-0x00000000004D0000-0x00000000004E2000-memory.dmp

Filesize
72KB

Download
memory/2876-0-0x00000000008C0000-0x00000000009AC000-memory.dmp

Filesize
944KB

Download
memory/2876-3-0x00000000001F0000-0x00000000001FE000-memory.dmp

Filesize
56KB

Download
memory/2876-2-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2876-24-0x0000000074820000-0x0000000074F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-1-0x0000000074820000-0x0000000074F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2944-14-0x00000000009E0000-0x00000000009EC000-memory.dmp

Filesize
48KB

Download
memory/2944-15-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

Filesize
9.9MB

Download
memory/2944-16-0x000000001B270000-0x000000001B2F0000-memory.dmp

Filesize
512KB

Download
memory/2944-19-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

Filesize
9.9MB

Download

Analysis

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