lumma | 2854e22091c01a1c1a9b654d7305ec7beb0bcc703e161dbef06af7d9c401495b

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-01-2025 16:41

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General

Target

legs.exe
Size

358KB
MD5

a2697e928936f05710dfb331f982c917
SHA1

640bd258cf5215728810eafef0e898b5596b5c7c
SHA256

2854e22091c01a1c1a9b654d7305ec7beb0bcc703e161dbef06af7d9c401495b
SHA512

87419562c73bd05d1e8ead691fcdfabcdb56f6676af8cac79aa0c16d8df636e74d477db8185290a4b51afa5a1b2e49a46e9c77afe6355974c3c0c370df3d32b6
SSDEEP

6144:M9XhFJ2ZJUzLhX+oRdfvl/HxkU++Ql36XMMs7cVRK85xm9tGRDytvl6D5weAVY:ErJsJUzLhJ3l/RkU+b3lAVDgTGROtt6N

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

https://cloudewahsj.shop/api

https://rabidcowse.shop/api

https://noisycuttej.shop/api

https://tirepublicerj.shop/api

https://framekgirus.shop/api

https://wholersorie.shop/api

https://abruptyopsn.shop/api

https://nearycrepso.shop/api

Signatures

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Lumma family
lumma

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1924 set thread context of 2076	1924	legs.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1696	1924	WerFault.exe	29

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	legs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 2076	1924	legs.exe	31
PID 1924 wrote to memory of 1696	1924	legs.exe	32
PID 1924 wrote to memory of 1696	1924	legs.exe	32
PID 1924 wrote to memory of 1696	1924	legs.exe	32
PID 1924 wrote to memory of 1696	1924	legs.exe	32

C:\Users\Admin\AppData\Local\Temp\legs.exe
"C:\Users\Admin\AppData\Local\Temp\legs.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\legs.exe
  "C:\Users\Admin\AppData\Local\Temp\legs.exe"
  2⤵
  PID:2076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 68
  2⤵
  - Program crash
  PID:1696

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/1924-0-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/1924-1-0x0000000000970000-0x00000000009D2000-memory.dmp

Filesize
392KB

Download
memory/1924-15-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-14-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2076-7-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2076-8-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2076-10-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2076-6-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2076-5-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2076-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2076-3-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2076-12-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2076-13-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download