lumma | 7fb411ee3e34e4b79b372b7d2321bf69b46de30c3286edccb7621562caefb60b

General

Target

tmp.exe
Size

3.9MB
MD5

a8001f151c1ce13aac56097a2bf1f789
SHA1

414d9f4219570bc75eb6e6cf2932c4fb407afa56
SHA256

7fb411ee3e34e4b79b372b7d2321bf69b46de30c3286edccb7621562caefb60b
SHA512

9c20f91c378d9559f6e5115857401def02145bb665a4c64f7842175b077bb6406544caa8197c9713f9b22943ffd87405beb809cf0e684c53b934acfe8d421060
SSDEEP

49152:ZHVpQMSWLLKUmQUSgYaNrb5c90DNQdjK/c0kCs:Z1pjSWL5

Score

10^/10

lumma discovery spyware stealer

Malware Config

Signatures

Lumma Stealer
An infostealer written in C++ first seen in August 2022.
stealer lumma
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation tmp.exe
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 3940 set thread context of 344 3940 tmp.exe tmp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4256 powershell.exe
4256 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exetmp.exe

description pid process

Token: SeDebugPrivilege 4256 powershell.exe
Token: SeDebugPrivilege 3940 tmp.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	tmp.exe

description	pid	process	target process
PID 3940 set thread context of 344	3940	tmp.exe	tmp.exe

pid	process
4256	powershell.exe
4256	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4256	powershell.exe
Token: SeDebugPrivilege	3940	tmp.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 3940 wrote to memory of 4256	3940	tmp.exe	powershell.exe
PID 3940 wrote to memory of 4256	3940	tmp.exe	powershell.exe
PID 3940 wrote to memory of 4256	3940	tmp.exe	powershell.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe
PID 3940 wrote to memory of 344	3940	tmp.exe	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3940

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4256

C:\Users\Admin\AppData\Local\Temp\tmp.exe
C:\Users\Admin\AppData\Local\Temp\tmp.exe
2⤵
PID:344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5uzprgml.fv4.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/344-168-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/344-171-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/344-170-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/344-169-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/344-166-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/344-165-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3940-135-0x00000000054F0000-0x0000000005582000-memory.dmp

Filesize
584KB

Download
memory/3940-136-0x00000000054B0000-0x00000000054BA000-memory.dmp

Filesize
40KB

Download
memory/3940-137-0x0000000005710000-0x0000000005720000-memory.dmp

Filesize
64KB

Download
memory/3940-138-0x00000000072C0000-0x00000000072E2000-memory.dmp

Filesize
136KB

Download
memory/3940-158-0x0000000005710000-0x0000000005720000-memory.dmp

Filesize
64KB

Download
memory/3940-134-0x0000000005A00000-0x0000000005FA4000-memory.dmp

Filesize
5.6MB

Download
memory/3940-133-0x00000000006E0000-0x0000000000AC4000-memory.dmp

Filesize
3.9MB

Download
memory/4256-144-0x00000000059D0000-0x0000000005A36000-memory.dmp

Filesize
408KB

Download
memory/4256-156-0x00000000076C0000-0x0000000007D3A000-memory.dmp

Filesize
6.5MB

Download
memory/4256-157-0x0000000006530000-0x000000000654A000-memory.dmp

Filesize
104KB

Download
memory/4256-155-0x0000000004BF0000-0x0000000004C00000-memory.dmp

Filesize
64KB

Download
memory/4256-160-0x0000000004BF0000-0x0000000004C00000-memory.dmp

Filesize
64KB

Download
memory/4256-159-0x0000000004BF0000-0x0000000004C00000-memory.dmp

Filesize
64KB

Download
memory/4256-161-0x0000000004BF0000-0x0000000004C00000-memory.dmp

Filesize
64KB

Download
memory/4256-154-0x0000000006050000-0x000000000606E000-memory.dmp

Filesize
120KB

Download
memory/4256-143-0x0000000005860000-0x00000000058C6000-memory.dmp

Filesize
408KB

Download
memory/4256-142-0x0000000004BF0000-0x0000000004C00000-memory.dmp

Filesize
64KB

Download
memory/4256-141-0x0000000004BF0000-0x0000000004C00000-memory.dmp

Filesize
64KB

Download
memory/4256-140-0x0000000005230000-0x0000000005858000-memory.dmp

Filesize
6.2MB

Download
memory/4256-139-0x0000000004A80000-0x0000000004AB6000-memory.dmp

Filesize
216KB

Download

Analysis

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