lumma | 920226a25d102c354672c1c004a9551087f392d352077e8b7c82b973b6068267

General

Target

libsrv32.exe
Size

3.8MB
MD5

ea0336aaa24742c774ca8713132c7b4d
SHA1

7df85e68177fb118eb1461d2dfc927198d458eb4
SHA256

920226a25d102c354672c1c004a9551087f392d352077e8b7c82b973b6068267
SHA512

0ae61cb6ee165caa4e9f6b72411b4e27bef52cc6684f697749cb94df0364a3bdd5f4103c21b7b1ffd75f385b8c968b000c06d59649cfe20cf78258003e2fb52c
SSDEEP

49152:K7/idr291YPqWomuHBVygwtqnw1b2b6xWXJf4WGdxT585/IUZl18vPksj:K7KB291YCWomEfygwthd2ukJf47d

Score

10^/10

lumma discovery persistence stealer

Malware Config

Extracted

Family

lumma

C2

https://bab120witty.sbs/api

https://processhol.sbs/api

https://p10tgrace.sbs/api

https://peepburry828.sbs/api

https://3xp3cts1aim.sbs/api

https://p3ar11fter.sbs/api

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\AbuscseEditorDesigner = "C:\\Users\\Admin\\Music\\AbuscseDesignUpdater\\AbuscseVideo.exe"	libsrv32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2692	2528	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	libsrv32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	libsrv32.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2376	2528	libsrv32.exe	31
PID 2528 wrote to memory of 2376	2528	libsrv32.exe	31
PID 2528 wrote to memory of 2376	2528	libsrv32.exe	31
PID 2528 wrote to memory of 2376	2528	libsrv32.exe	31
PID 2528 wrote to memory of 2376	2528	libsrv32.exe	31
PID 2528 wrote to memory of 2376	2528	libsrv32.exe	31
PID 2528 wrote to memory of 2692	2528	libsrv32.exe	32
PID 2528 wrote to memory of 2692	2528	libsrv32.exe	32
PID 2528 wrote to memory of 2692	2528	libsrv32.exe	32
PID 2528 wrote to memory of 2692	2528	libsrv32.exe	32

C:\Users\Admin\AppData\Local\Temp\libsrv32.exe
"C:\Users\Admin\AppData\Local\Temp\libsrv32.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\libsrv32.exe
  "C:\Users\Admin\AppData\Local\Temp\libsrv32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 48
  2⤵
  - Program crash
  PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab6C4C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar6C7E.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2376-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2376-11-0x00000000001B0000-0x000000000020F000-memory.dmp

Filesize
380KB

Download
memory/2376-56-0x00000000001B0000-0x000000000020F000-memory.dmp

Filesize
380KB

Download
memory/2376-17-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2376-16-0x00000000001B0000-0x000000000020F000-memory.dmp

Filesize
380KB

Download
memory/2376-7-0x00000000001B0000-0x000000000020F000-memory.dmp

Filesize
380KB

Download
memory/2528-14-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-12-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-1-0x00000000004F3000-0x000000000050C000-memory.dmp

Filesize
100KB

Download
memory/2528-5-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-6-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-18-0x00000000004F3000-0x000000000050C000-memory.dmp

Filesize
100KB

Download
memory/2528-19-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-20-0x00000000004F3000-0x000000000050C000-memory.dmp

Filesize
100KB

Download
memory/2528-21-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-2-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-0-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download
memory/2528-4-0x0000000000400000-0x00000000007C8000-memory.dmp

Filesize
3.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads