lumma | 8c4e1d0181c7e243b35f97b93b16c1fa90d81004f8286fa141df4afd106e67c8

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
01/06/2026, 18:09

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General

Target
tmpywsj3bm3.exe
Size 766KB
Sample260601-wrh5eady9p
SHA256 8c4e1d0181c7e243b35f97b93b16c1fa90d81004f8286fa141df4afd106e67c8
MD5 0665132ae2666520f779765004181cdd
SHA1 cc76d32e00ab1a2b7bc2d3c4ef8f18a6279c339f
SHA512 8e70045aa3256d91d2dfadbb297d0bedabc0bc8bc66287e5b61de2ecf561c0679be526c756dc462280c273bd131e985722d2f6ec08d3812e4ee04265fb9ebb15
SSDEEP 12288:+gEqNf5/GGDWs3nWad39FXuZIRAZ72hP8362GYi8TJsB8RamRdwq+I6l:Iq5PDWs3pd9FUIRAEV1P
TLSH
T1FDF4AEA624D808EAF48BA73814F15A7BCDA4FF7048750D6737C49A8F1E5DAC3561C3A2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery lumma stealer

Malware Config

Extracted

Family

lumma

https://clearancek.site/api
https://licendfilteo.site/api
https://spirittunek.store/api
https://bathdoomgaz.store/api
https://studennotediw.store/api
https://dissapoiznw.store/api
https://eaglepawnoy.store/api
https://mobbipenju.store/api
https://trustterwowqm.shop/api

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 556 set thread context of 2608	556	tmpywsj3bm3.exe	89

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4268	556	WerFault.exe	85

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	tmpywsj3bm3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpywsj3bm3.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 556 wrote to memory of 2608	556	tmpywsj3bm3.exe	89
PID 556 wrote to memory of 2608	556	tmpywsj3bm3.exe	89
PID 556 wrote to memory of 2608	556	tmpywsj3bm3.exe	89
PID 556 wrote to memory of 2608	556	tmpywsj3bm3.exe	89
PID 556 wrote to memory of 2608	556	tmpywsj3bm3.exe	89
PID 556 wrote to memory of 2608	556	tmpywsj3bm3.exe	89

C:\Users\Admin\AppData\Local\Temp\tmpywsj3bm3.exe
"C:\Users\Admin\AppData\Local\Temp\tmpywsj3bm3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:556
- C:\Users\Admin\AppData\Local\Temp\tmpywsj3bm3.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpywsj3bm3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 404
  2⤵
  - Program crash
  PID:4268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 556 -ip 556
1⤵
PID:1208

Network

MITRE ATT&CK Enterprise v16

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/556-3-0x00000000000C0000-0x000000000018B000-memory.dmp

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memory/556-2-0x00000000000C0000-0x000000000018B000-memory.dmp

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memory/556-1-0x00000000000C0000-0x000000000018B000-memory.dmp

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memory/556-0-0x0000000000155000-0x0000000000156000-memory.dmp

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memory/556-8-0x00000000000C0000-0x000000000018B000-memory.dmp

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memory/2608-4-0x0000000000400000-0x0000000000464000-memory.dmp

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memory/2608-6-0x0000000000400000-0x0000000000464000-memory.dmp

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memory/2608-7-0x00000000000C0000-0x000000000018B000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads