orcus | 1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
02-07-2024 01:42

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General

Target

1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe
Size

907KB
MD5

b2e4362b9f96ec4188f662819fd0ed95
SHA1

f8bfd2340039c904f459136c6b6abc4bcfa68e93
SHA256

1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f
SHA512

0315b4b5fc6351615a20cb80cb61ebd3aaeeac562c89fac53fe44f7d6757eb1a9a04c2bd90a7682ad6105c7c9802efe44aeea22d4522f384c1f886a239463359
SSDEEP

24576:i554MROxnFMptJSvrrcI0AilFEvxHP7ooI:iQMiqTSvrrcI0AilFEvxHP

Score

10^/10

orcus persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

10.9.164.122:9999

Mutex

c3d53f9fe37146cb9de31d6e16e18ac2

Attributes

autostart_method
Registry
enable_keylogger
false
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
Orcus
watchdog_path
AppData\OrcusWatchdog.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus main payload 1 IoCs

Processes:

resource yara_rule

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

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

Orcurs Rat Executable 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2552-1-0x0000000000140000-0x0000000000228000-memory.dmp	orcus
\Program Files (x86)\Orcus\Orcus.exe	orcus
behavioral1/memory/1896-18-0x0000000000A20000-0x0000000000B08000-memory.dmp	orcus

Executes dropped EXE 1 IoCs

Processes:

Orcus.exe

pid process

1896 Orcus.exe
Loads dropped DLL 1 IoCs

Processes:

1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe

pid process

2552 1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe

pid	process
1896	Orcus.exe

pid	process
2552	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe

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-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files (x86)\\Orcus\\Orcus.exe\""	Orcus.exe

Drops file in Program Files directory 3 IoCs

Processes:

1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe

description	ioc	process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.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

Processes:

1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe

description	pid	process	target process
PID 2552 wrote to memory of 1896	2552	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe	Orcus.exe
PID 2552 wrote to memory of 1896	2552	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe	Orcus.exe
PID 2552 wrote to memory of 1896	2552	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe	Orcus.exe
PID 2552 wrote to memory of 1896	2552	1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe	Orcus.exe

C:\Users\Admin\AppData\Local\Temp\1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe
"C:\Users\Admin\AppData\Local\Temp\1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2552

C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:1896

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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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
\Program Files (x86)\Orcus\Orcus.exe
Filesize
907KB

MD5
b2e4362b9f96ec4188f662819fd0ed95

SHA1
f8bfd2340039c904f459136c6b6abc4bcfa68e93

SHA256
1806529b170be4bbe19aff809a669b9ee1ca761cbfc82bb113ca591ad0da7e2f

SHA512
0315b4b5fc6351615a20cb80cb61ebd3aaeeac562c89fac53fe44f7d6757eb1a9a04c2bd90a7682ad6105c7c9802efe44aeea22d4522f384c1f886a239463359

Download Submit
memory/1896-20-0x00000000020E0000-0x000000000212E000-memory.dmp

Filesize
312KB

Download
memory/1896-19-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1896-23-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1896-22-0x0000000001F90000-0x0000000001FA0000-memory.dmp

Filesize
64KB

Download
memory/1896-21-0x00000000009E0000-0x00000000009F8000-memory.dmp

Filesize
96KB

Download
memory/1896-17-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1896-18-0x0000000000A20000-0x0000000000B08000-memory.dmp

Filesize
928KB

Download
memory/2552-14-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/2552-3-0x0000000000550000-0x00000000005AC000-memory.dmp

Filesize
368KB

Download
memory/2552-1-0x0000000000140000-0x0000000000228000-memory.dmp

Filesize
928KB

Download
memory/2552-0-0x000000007412E000-0x000000007412F000-memory.dmp

Filesize
4KB

Download
memory/2552-2-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2552-5-0x0000000001E70000-0x0000000001E82000-memory.dmp

Filesize
72KB

Download
memory/2552-4-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download