lumma | 6608f27dbd3c5a6b6e4e2d67d04c2656b1436bcd68dedbe8552a4139bf279eaa

Analysis

max time kernel
148s
max time network
154s
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 00:03

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General

Target

yoyuds_build.exe
Size

361KB
MD5

c14b3e5e05e6005210183dd918b1dd2d
SHA1

32ade9c1c473af583d67a2d170c5f9a4e31ea949
SHA256

0eb552b6985668e7bffb1ccc3cbe69d05af1efc7d1f2916d728836ebf08275a9
SHA512

5b2cdb94c92fb9d82747642e238cc18d4c8580e88ed2f3c67ffc3c813a512db4c4476cd4eb24775d72a78829d2f7d00929e15455f66d1820264acf33e75cbc66
SSDEEP

6144:6hRMi/MsuKRGvpyYxNeamPtboFojK47rXBUfXbI8LM26I1Oo4QDfmgU3iw:6/MsMsuzv/t08Fo+47rXsXcI5cJQDf21

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

https://fancywaxxers.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

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/memory/4556-1-0x00000000007E0000-0x0000000000842000-memory.dmp	net_reactor

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4556 set thread context of 412	4556	yoyuds_build.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2832	4556	WerFault.exe	83

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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85
PID 4556 wrote to memory of 412	4556	yoyuds_build.exe	85

C:\Users\Admin\AppData\Local\Temp\yoyuds_build.exe
"C:\Users\Admin\AppData\Local\Temp\yoyuds_build.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Users\Admin\AppData\Local\Temp\yoyuds_build.exe
  "C:\Users\Admin\AppData\Local\Temp\yoyuds_build.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 156
  2⤵
  - Program crash
  PID:2832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4556 -ip 4556
1⤵
PID:932

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/412-4-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/412-6-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/412-8-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/4556-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/4556-1-0x00000000007E0000-0x0000000000842000-memory.dmp

Filesize
392KB

Download
memory/4556-2-0x00000000056D0000-0x0000000005C74000-memory.dmp

Filesize
5.6MB

Download
memory/4556-7-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download