lumma | 90dfa09e50fe4fb0ace2fd9cdf49a33cc959e15daf2cd32d9d621d62a09460aa

Analysis

max time kernel
95s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 18:18

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General

Target

bigurj.exe
Size

338KB
MD5

b251696872aa6e65824bb3c09917a575
SHA1

45a987b49a7e02b777d0bf7db2ca039a0d031bb3
SHA256

90dfa09e50fe4fb0ace2fd9cdf49a33cc959e15daf2cd32d9d621d62a09460aa
SHA512

847cebfe7b4f6de95f02579ddd977db214f37883250aa681e0088a75baa2d5b17dc2a23434d727561dfdb2626662d95d1efe122f81510c28306c1897e6d0b5c1
SSDEEP

6144:yx6cyJSvf7LDxbfi122+EKOmf9etCu+hglHWMU+VyvB+x9cw1:yocTvf7xO1ZDsocu+Kpjsvycw1

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 2672 set thread context of 4360	2672	bigurj.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4476	2672	WerFault.exe	82

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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84
PID 2672 wrote to memory of 4360	2672	bigurj.exe	84

C:\Users\Admin\AppData\Local\Temp\bigurj.exe
"C:\Users\Admin\AppData\Local\Temp\bigurj.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Local\Temp\bigurj.exe
  "C:\Users\Admin\AppData\Local\Temp\bigurj.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2672 -s 828
  2⤵
  - Program crash
  PID:4476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2672 -ip 2672
1⤵
PID:1636

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/2672-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/2672-1-0x0000000000780000-0x00000000007DC000-memory.dmp

Filesize
368KB

Download
memory/2672-2-0x0000000005670000-0x0000000005C14000-memory.dmp

Filesize
5.6MB

Download
memory/2672-7-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4360-4-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4360-6-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4360-8-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download