legion | 483e4420eafdf7c0e234ef5e9dbee200417ca08c031f1eb897c7f5ee56f34836

Analysis

max time kernel
2s
max time network
4s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-10-2024 14:30

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General

Target

$REJOPP1.dll
Size

443KB
MD5

ec004dc03be6ebc78f5c1d7f22609155
SHA1

54fa9d62fbe8e562b3657907b7b69c95420f95c5
SHA256

483e4420eafdf7c0e234ef5e9dbee200417ca08c031f1eb897c7f5ee56f34836
SHA512

a411ba656dbbbe04a97c8341fede3e525df432c5603ad16ddec40e75c7fdbc261af4d8baf8d5c6e05ca04bd9a73bf961d2491b6368b4ee55cbf3fb2e7249cea2
SSDEEP

6144:u22607OpiESnemEcwc2Tn1Tlkdjgxz2rN9c9k+eb2hY9lSeB47ELAOH:f2607OpijjkkdgxqrQu+mrSe6+

Score

10^/10

legion discovery downloader loader stealer

Malware Config

Extracted

Family

legion

dns-beast.com

Attributes

url_paths
hittest.php
user_agent
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; Touch; rv:11.0) like Gecko

Signatures

Legion, RobotDropper, Satacom
Legion aka 'RobotDropper' or 'Satacom' is a malware downloader written in C++ and Legion stealer is written C#.
downloader stealer legion

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4456 set thread context of 5012	4456	rundll32.exe	85

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 4456	4880	rundll32.exe	84
PID 4880 wrote to memory of 4456	4880	rundll32.exe	84
PID 4880 wrote to memory of 4456	4880	rundll32.exe	84
PID 4456 wrote to memory of 5012	4456	rundll32.exe	85
PID 4456 wrote to memory of 5012	4456	rundll32.exe	85
PID 4456 wrote to memory of 5012	4456	rundll32.exe	85
PID 4456 wrote to memory of 5012	4456	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$REJOPP1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$REJOPP1.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4456
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4456-1-0x0000000000EE0000-0x0000000000FE0000-memory.dmp

Filesize
1024KB

Download
memory/5012-2-0x0000000000780000-0x00000000007A7000-memory.dmp

Filesize
156KB

Download
memory/5012-3-0x0000000000780000-0x00000000007A7000-memory.dmp

Filesize
156KB

Download
memory/5012-4-0x0000000000780000-0x00000000007A7000-memory.dmp

Filesize
156KB

Download
memory/5012-5-0x0000000000780000-0x00000000007A7000-memory.dmp

Filesize
156KB

Download
memory/5012-6-0x0000000000780000-0x00000000007A7000-memory.dmp

Filesize
156KB

Download