lumma | 6608f27dbd3c5a6b6e4e2d67d04c2656b1436bcd68dedbe8552a4139bf279eaa

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

C2

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
behavioral1/memory/2664-1-0x00000000011E0000-0x0000000001242000-memory.dmp	net_reactor

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 1164	2664	yoyuds_build.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2532	2664	WerFault.exe	29

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 14 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 1164	2664	yoyuds_build.exe	31
PID 2664 wrote to memory of 2532	2664	yoyuds_build.exe	32
PID 2664 wrote to memory of 2532	2664	yoyuds_build.exe	32
PID 2664 wrote to memory of 2532	2664	yoyuds_build.exe	32
PID 2664 wrote to memory of 2532	2664	yoyuds_build.exe	32

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:2664
- 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:1164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 68
  2⤵
  - Program crash
  PID:2532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab59E5.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar5A26.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1164-6-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1164-12-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1164-8-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1164-7-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1164-5-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1164-4-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1164-3-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1164-14-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1164-10-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2664-0-0x00000000747FE000-0x00000000747FF000-memory.dmp

Filesize
4KB

Download
memory/2664-13-0x00000000747F0000-0x0000000074EDE000-memory.dmp

Filesize
6.9MB

Download
memory/2664-1-0x00000000011E0000-0x0000000001242000-memory.dmp

Filesize
392KB

Download
memory/2664-49-0x00000000747F0000-0x0000000074EDE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing