lumma | 5281883011b847e4ab3f68c7488a47fb8489ac802c558a2cb1e5bef588f06269

General

Target

Release-x64.zip
Size

19.6MB
MD5

25493ab271580066a0d5e8d43b25e055
SHA1

f2a8336d1e6a75233f796fe37ec00aa204fb6907
SHA256

5281883011b847e4ab3f68c7488a47fb8489ac802c558a2cb1e5bef588f06269
SHA512

41728fc89da12faca4fa738f5ef48cd1d7fd1c9b82151f9d011f4079611d0e7fdc7a06503a07a469a89b9de0424404b547bd89e5678da73a8dfa89668932deb1
SSDEEP

393216:oyzn8HaG+RVYNVwS8+1Kd7qI2R/Ri977qCWEyeEcTeuoIJKxoJe4B2:Zn8yV2Vw7+10qbKzEcquoAKxogM2

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

Extracted

Family

lumma

C2

https://abruptyopsn.shop/api

https://wholersorie.shop/api

https://framekgirus.shop/api

https://tirepublicerj.shop/api

https://noisycuttej.shop/api

https://rabidcowse.shop/api

https://cloudewahsj.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

Executes dropped EXE 3 IoCs

pid	Process
3552	Bootstrapp.exe
2160	Bootstrapp.exe
4304	Bootstrapp.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4960	3552	WerFault.exe	101
2340	2160	WerFault.exe	111

System Location Discovery: System Language Discovery 1 TTPs 3 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	Bootstrapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bootstrapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bootstrapp.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	7zFM.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2632	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4152	7zFM.exe
4152	7zFM.exe
4152	7zFM.exe
4152	7zFM.exe
4152	7zFM.exe
4152	7zFM.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4152	7zFM.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeRestorePrivilege	4152	7zFM.exe
Token: 35	4152	7zFM.exe
Token: SeSecurityPrivilege	4152	7zFM.exe
Token: SeSecurityPrivilege	4152	7zFM.exe
Token: SeSecurityPrivilege	4152	7zFM.exe
Token: SeSecurityPrivilege	4152	7zFM.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
4152	7zFM.exe
4152	7zFM.exe
4152	7zFM.exe
4152	7zFM.exe
4152	7zFM.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 2632	4152	7zFM.exe	87
PID 4152 wrote to memory of 2632	4152	7zFM.exe	87
PID 4152 wrote to memory of 3552	4152	7zFM.exe	101
PID 4152 wrote to memory of 3552	4152	7zFM.exe	101
PID 4152 wrote to memory of 3552	4152	7zFM.exe	101
PID 4152 wrote to memory of 2160	4152	7zFM.exe	111
PID 4152 wrote to memory of 2160	4152	7zFM.exe	111
PID 4152 wrote to memory of 2160	4152	7zFM.exe	111
PID 4152 wrote to memory of 4304	4152	7zFM.exe	113
PID 4152 wrote to memory of 4304	4152	7zFM.exe	113
PID 4152 wrote to memory of 4304	4152	7zFM.exe	113

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Release-x64.zip"
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\7zO83076CF7\README.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:2632
- C:\Users\Admin\AppData\Local\Temp\7zO830A6EA7\Bootstrapp.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO830A6EA7\Bootstrapp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3552
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1356
    3⤵
    - Program crash
    PID:4960
- C:\Users\Admin\AppData\Local\Temp\7zO8305EB68\Bootstrapp.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO8305EB68\Bootstrapp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2160
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2160 -s 1296
    3⤵
    - Program crash
    PID:2340
- C:\Users\Admin\AppData\Local\Temp\7zO8307DE68\Bootstrapp.exe
  "C:\Users\Admin\AppData\Local\Temp\7zO8307DE68\Bootstrapp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3552 -ip 3552
1⤵
PID:1752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2160 -ip 2160
1⤵
PID:2440

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zO83076CF7\README.txt

Filesize
124B

MD5
3b4bb14e17a60137e3e93c7adac41bcb

SHA1
de09ed28df13d9325e816d0c656582a929077876

SHA256
bde691c014e6a2527d5ef783d065edf14bcfe83b20c1ff97c22d280633b5287e

SHA512
ec76f39b6ab4c6f822a1777c78212d659d86760458da9f050fba48bef12cba054573f25fc96278b49cdb163bed41a157123c01d3897226584cd1b57a653dfb50

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zO830A6EA7\Bootstrapp.exe

Filesize
303KB

MD5
8b4b611f189dc2c0da8f0418a4f75a48

SHA1
67da157c8da2ee1deb30472e06cacca5c1918d5f

SHA256
c06c92f33a0f706400bac3cb9174e27d95a995bd69886bd7e779638813483c78

SHA512
93cd273d5d0525e92340434cb4a255c8d2dad8db24a2cbb0d78a1a5be41ecdafd835971bed638e98e546bfdcd59151a8d2219a4fc307a50b8e22b6b928136e58

Download Submit
memory/2160-32-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3552-13-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads