legion | 483e4420eafdf7c0e234ef5e9dbee200417ca08c031f1eb897c7f5ee56f34836

Analysis

max time kernel
91s
max time network
93s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
11/10/2024, 14:30

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General

Target
$REJOPP1.dll
Size 443KB
Sample241011-rvb32sxcjf
SHA256 483e4420eafdf7c0e234ef5e9dbee200417ca08c031f1eb897c7f5ee56f34836
MD5 ec004dc03be6ebc78f5c1d7f22609155
SHA1 54fa9d62fbe8e562b3657907b7b69c95420f95c5
SHA512 a411ba656dbbbe04a97c8341fede3e525df432c5603ad16ddec40e75c7fdbc261af4d8baf8d5c6e05ca04bd9a73bf961d2491b6368b4ee55cbf3fb2e7249cea2
SSDEEP 6144:u22607OpiESnemEcwc2Tn1Tlkdjgxz2rN9c9k+eb2hY9lSeB47ELAOH:f2607OpijjkkdgxqrQu+mrSe6+
MD5 SHA1 SHA512 SSDEEP

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 5304 set thread context of 5200	5304	rundll32.exe	78

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 5304	2868	rundll32.exe	77
PID 2868 wrote to memory of 5304	2868	rundll32.exe	77
PID 2868 wrote to memory of 5304	2868	rundll32.exe	77
PID 5304 wrote to memory of 5200	5304	rundll32.exe	78
PID 5304 wrote to memory of 5200	5304	rundll32.exe	78
PID 5304 wrote to memory of 5200	5304	rundll32.exe	78
PID 5304 wrote to memory of 5200	5304	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$REJOPP1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2868
- 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:5304
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5200

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

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Downloads

memory/5200-3-0x00000000003C0000-0x00000000003E7000-memory.dmp

Download

memory/5200-2-0x00000000003C0000-0x00000000003E7000-memory.dmp

Download

memory/5200-4-0x00000000003C0000-0x00000000003E7000-memory.dmp

Download

memory/5200-5-0x00000000003C0000-0x00000000003E7000-memory.dmp

Download

memory/5200-6-0x00000000004C0000-0x00000000004C3000-memory.dmp

Download

memory/5200-7-0x00000000003C0000-0x00000000003E7000-memory.dmp

Download

memory/5304-1-0x0000000000B60000-0x0000000000C60000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads