orcus | bb878d54b68e3be71f2e61cd0e3a8f554a401b49204f76332fad3f8d4960f668

Resubmissions

20-05-2024 14:15

240520-rk2wqadd42 10

18-03-2024 04:21

240318-eynvssgg9w 7

Analysis

max time kernel
287s
max time network
300s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20-05-2024 14:15

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General

Target

25704a9ffe807caab1b7f0800f22692f.exe
Size

981KB
MD5

25704a9ffe807caab1b7f0800f22692f
SHA1

61c2c9d62e14410a079746ab6c3272e3ba1e926d
SHA256

bb878d54b68e3be71f2e61cd0e3a8f554a401b49204f76332fad3f8d4960f668
SHA512

70fa6a3551573fac4b1a2852a7bb679c2a641ff62a7a597a5978984a61e8d7e467335e5b31c21d17ea76b855574baaaaa4b11417d42c7529bd757ccc693b6656
SSDEEP

12288:fn4noCPJgCmEAK/frrzBmx7ByirqLVnU93t8dLB0w9LAhDHzqO4tq9q/47QrcSNw:fn4JPRnDJmx8UUVnUpil9LAf4tWoP

Score

10^/10

orcus rat spyware stealer

Malware Config

Extracted

Family

orcus

103.155.214.203:443

Mutex

09171a523ae744698a8a9b8c7ef17497

Attributes

autostart_method
Disable
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

Orcurs Rat Executable 1 IoCs

resource	yara_rule
behavioral1/memory/3724-14-0x00000186F9E80000-0x00000186F9F68000-memory.dmp	orcus

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	25704a9ffe807caab1b7f0800f22692f.exe

Executes dropped EXE 1 IoCs

pid	Process
3724	25704a9ffe807caab1b7f0800f22692f.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 3724	944	25704a9ffe807caab1b7f0800f22692f.exe	96
PID 944 wrote to memory of 3724	944	25704a9ffe807caab1b7f0800f22692f.exe	96

C:\Users\Admin\AppData\Local\Temp\25704a9ffe807caab1b7f0800f22692f.exe
"C:\Users\Admin\AppData\Local\Temp\25704a9ffe807caab1b7f0800f22692f.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:944
- C:\Users\Admin\AppData\Local\25704a9ffe807caab1b7f0800f22692f.exe
  "C:\Users\Admin\AppData\Local\25704a9ffe807caab1b7f0800f22692f.exe"
  2⤵
  - Executes dropped EXE
  PID:3724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\25704a9ffe807caab1b7f0800f22692f.exe

Filesize
981KB

MD5
25704a9ffe807caab1b7f0800f22692f

SHA1
61c2c9d62e14410a079746ab6c3272e3ba1e926d

SHA256
bb878d54b68e3be71f2e61cd0e3a8f554a401b49204f76332fad3f8d4960f668

SHA512
70fa6a3551573fac4b1a2852a7bb679c2a641ff62a7a597a5978984a61e8d7e467335e5b31c21d17ea76b855574baaaaa4b11417d42c7529bd757ccc693b6656

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\25704a9ffe807caab1b7f0800f22692f.exe.log

Filesize
660B

MD5
1c5e1d0ff3381486370760b0f2eb656b

SHA1
f9df6be8804ef611063f1ff277e323b1215372de

SHA256
f424c891fbc7385e9826beed2dd8755aeac5495744b5de0a1e370891a7beaf7a

SHA512
78f5fc40a185d04c9e4a02a3d1b10b4bd684c579a45a0d1e8f49f8dee9018ed7bc8875cbf21f98632f93ead667214a41904226ce54817b85caeeb4b0de54a743

Download Submit
memory/944-0-0x00007FF800FD3000-0x00007FF800FD5000-memory.dmp

Filesize
8KB

Download
memory/944-1-0x00000249BD310000-0x00000249BD40A000-memory.dmp

Filesize
1000KB

Download
memory/3724-14-0x00000186F9E80000-0x00000186F9F68000-memory.dmp

Filesize
928KB

Download
memory/3724-13-0x00007FF800FD0000-0x00007FF801A91000-memory.dmp

Filesize
10.8MB

Download
memory/3724-12-0x00007FF800FD0000-0x00007FF801A91000-memory.dmp

Filesize
10.8MB

Download
memory/3724-16-0x00000186DFD80000-0x00000186DFD8E000-memory.dmp

Filesize
56KB

Download
memory/3724-15-0x00000186E1740000-0x00000186E179C000-memory.dmp

Filesize
368KB

Download
memory/3724-17-0x00007FF800FD0000-0x00007FF801A91000-memory.dmp

Filesize
10.8MB

Download
memory/3724-18-0x00000186E1570000-0x00000186E1582000-memory.dmp

Filesize
72KB

Download
memory/3724-19-0x00000186E1580000-0x00000186E1598000-memory.dmp

Filesize
96KB

Download
memory/3724-20-0x00000186DFF40000-0x00000186DFF50000-memory.dmp

Filesize
64KB

Download
memory/3724-21-0x00007FF800FD0000-0x00007FF801A91000-memory.dmp

Filesize
10.8MB

Download