orcus | fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984

Analysis

max time kernel
138s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-06-2024 01:29

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General

Target

fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984.exe
Size

3.1MB
MD5

5f5733f2d10d4c7540cfad004a1a66a3
SHA1

2d937253d9ac339e5d636af50cd8429ccac39977
SHA256

fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984
SHA512

ee577e31ef7dd5d2a47891d86bfe45a88aba154c6b291b7008f1f8ff8d3dde943b056927dd337c6c74aa0e21f7d9868909f1841686d6306e9bbd14b83512c736
SSDEEP

98304:1VtODUKTslWp2MpbfGGilIJPypSbxEo9JCmV:UUKTtEgNilIJPypSbJCi

Score

10^/10

orcus pdf rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

PDF

192.168.0.100:10134

Mutex

4c02bb39af5f434ea8ccdf8d1d4c4bc9

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%programfiles%\pdf\pdf
reconnect_delay
10000
registry_keyname
pdf
taskscheduler_taskname
pdf
watchdog_path
AppData\PDF

Signatures

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

Orcus main payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002340f-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/856-1-0x00000000008E0000-0x0000000000C06000-memory.dmp	orcus
behavioral2/files/0x000700000002340f-13.dat	orcus

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\pdf\pdf	fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984.exe
File opened for modification	C:\Program Files (x86)\pdf\pdf	fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984.exe
File created	C:\Program Files (x86)\pdf\pdf.config	fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\Local Settings	fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984.exe
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\Local Settings	OpenWith.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5040	OpenWith.exe

C:\Users\Admin\AppData\Local\Temp\fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984.exe
"C:\Users\Admin\AppData\Local\Temp\fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984.exe"
1⤵
- Drops file in Program Files directory
- Modifies registry class
PID:856

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:5040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\pdf\pdf

Filesize
3.1MB

MD5
5f5733f2d10d4c7540cfad004a1a66a3

SHA1
2d937253d9ac339e5d636af50cd8429ccac39977

SHA256
fb84dd4ac25fc62b6eb922badaa84c53d71639c89903d155bc11304bea0df984

SHA512
ee577e31ef7dd5d2a47891d86bfe45a88aba154c6b291b7008f1f8ff8d3dde943b056927dd337c6c74aa0e21f7d9868909f1841686d6306e9bbd14b83512c736

Download Submit
memory/856-0-0x0000000074BAE000-0x0000000074BAF000-memory.dmp

Filesize
4KB

Download
memory/856-1-0x00000000008E0000-0x0000000000C06000-memory.dmp

Filesize
3.1MB

Download
memory/856-2-0x0000000005420000-0x000000000542E000-memory.dmp

Filesize
56KB

Download
memory/856-3-0x0000000005480000-0x00000000054DC000-memory.dmp

Filesize
368KB

Download
memory/856-4-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/856-5-0x0000000005D70000-0x0000000006314000-memory.dmp

Filesize
5.6MB

Download
memory/856-6-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/856-7-0x00000000056C0000-0x00000000056D2000-memory.dmp

Filesize
72KB

Download
memory/856-20-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download