lumma | fd6bd9a37677899ab77945288508f6946c0ec955b7cdc2bc106a0b6d5de67c66

Analysis

max time kernel
92s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22/01/2025, 14:28

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General

Target

CsNyImE.exe
Size

404KB
MD5

c9c7d2de539b4b1c93776286a9d064da
SHA1

2c40996830841153ecd76c1fba2d64e39c7321e9
SHA256

fd6bd9a37677899ab77945288508f6946c0ec955b7cdc2bc106a0b6d5de67c66
SHA512

6c1c6536c62a9dd4c5bd4074a27e3cf45a58acbd92b4cd466c30ab95d15b404970c123a993243623d2280f4a711fe64cf33af7e53cdb501ff95073f7e22c617a
SSDEEP

12288:oQXNUkhvrUrv9ysegjTkH9O+OYJ0Lr8zspre4J:o5khwrvpeaTkdjOxr8zIrRJ

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

https://impolitewearr.biz/api

https://toppyneedus.biz/api

https://lightdeerysua.biz/api

https://suggestyuoz.biz/api

https://hoursuhouy.biz/api

https://mixedrecipew.biz/api

https://affordtempyo.biz/api

https://pleasedcfrown.biz/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 3172 set thread context of 1388	3172	CsNyImE.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2172	3172	WerFault.exe	84

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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85
PID 3172 wrote to memory of 1388	3172	CsNyImE.exe	85

C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe
"C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe
  "C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3172 -s 828
  2⤵
  - Program crash
  PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3172 -ip 3172
1⤵
PID:3220

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/1388-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1388-6-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1388-8-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/3172-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/3172-1-0x0000000000440000-0x00000000004A8000-memory.dmp

Filesize
416KB

Download
memory/3172-2-0x0000000005320000-0x00000000058C4000-memory.dmp

Filesize
5.6MB

Download
memory/3172-7-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download