legion | f12736051e4df3d70a26da397ab6b5f7b54f8de9ffec759afb99a91b59568019

Analysis

max time kernel
58s
max time network
36s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
21-11-2024 09:51

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General

Target

malware.exe
Size

7.3MB
MD5

11d9aaa73cc74c7fab4a59ddb06a167c
SHA1

f831c54a7ab079fad39e78ed331d8043f703b3b7
SHA256

f12736051e4df3d70a26da397ab6b5f7b54f8de9ffec759afb99a91b59568019
SHA512

076c24988ea3ad1a9f4bcd40e461010f73b96b71812e36646d77a379bde7314c46a81beb84ba73fff2e264c723c9aeee12588c9e66595acb5ccf8680bea031d4
SSDEEP

196608:CUKvea9kMvSU7rBoI5HV2xzm478B27oynUV1l46w:Cfve25p350pm68EXoP

Score

10^/10

legion discovery downloader loader stealer upx

Malware Config

Extracted

Family

legion

dns-beast.com

Attributes

url_paths
test_gate0117.php

gate2.php?a=

error.php?text=
user_agent
Mozilla/5.0 (Windows NT 6.3; Trident/7.0; Touch; rv:11.0) like Gecko

Signatures

Legion family
legion
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 4700 set thread context of 2060	4700	malware.exe	82

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/4700-1-0x00007FF7BD500000-0x00007FF7BE1C6000-memory.dmp	upx
behavioral1/memory/4700-9-0x00007FF7BD500000-0x00007FF7BE1C6000-memory.dmp	upx
behavioral1/memory/4700-18-0x00007FF7BD500000-0x00007FF7BE1C6000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4700	malware.exe
4700	malware.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 2060	4700	malware.exe	82
PID 4700 wrote to memory of 2060	4700	malware.exe	82
PID 4700 wrote to memory of 2060	4700	malware.exe	82
PID 4700 wrote to memory of 2060	4700	malware.exe	82

C:\Users\Admin\AppData\Local\Temp\malware.exe
"C:\Users\Admin\AppData\Local\Temp\malware.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Windows\SysWOW64\explorer.exe
  C:\Windows\SysWOW64\explorer.exe explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2060

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/2060-16-0x0000000000840000-0x0000000000868000-memory.dmp

Filesize
160KB

Download
memory/2060-10-0x0000000000840000-0x0000000000868000-memory.dmp

Filesize
160KB

Download
memory/2060-11-0x0000000000840000-0x0000000000868000-memory.dmp

Filesize
160KB

Download
memory/2060-12-0x0000000000840000-0x0000000000868000-memory.dmp

Filesize
160KB

Download
memory/2060-13-0x0000000000840000-0x0000000000868000-memory.dmp

Filesize
160KB

Download
memory/2060-14-0x0000000000870000-0x0000000000939000-memory.dmp

Filesize
804KB

Download
memory/4700-1-0x00007FF7BD500000-0x00007FF7BE1C6000-memory.dmp

Filesize
12.8MB

Download
memory/4700-0-0x00007FFBB9DD0000-0x00007FFBB9DD2000-memory.dmp

Filesize
8KB

Download
memory/4700-8-0x0000015F7E830000-0x0000015F7E856000-memory.dmp

Filesize
152KB

Download
memory/4700-9-0x00007FF7BD500000-0x00007FF7BE1C6000-memory.dmp

Filesize
12.8MB

Download
memory/4700-4-0x00007FF7BD5FF000-0x00007FF7BDA78000-memory.dmp

Filesize
4.5MB

Download
memory/4700-17-0x00007FF7BD5FF000-0x00007FF7BDA78000-memory.dmp

Filesize
4.5MB

Download
memory/4700-18-0x00007FF7BD500000-0x00007FF7BE1C6000-memory.dmp

Filesize
12.8MB

Download