lumma | 43694949c33a41e76431848bcda52fecaac70095e979b11ffa568ba0a0c625a0

General

Target

Set-up.exe
Size

9.5MB
MD5

c9e23a257131677c1e5419f4950f4509
SHA1

28b54a0b6762a50d51bf785557a70199bcc4c934
SHA256

43694949c33a41e76431848bcda52fecaac70095e979b11ffa568ba0a0c625a0
SHA512

c9b87b28a835b0bf4e76b7b27e9496bb866284948e6d1a380f0a2a21a37f4e9d942689efdc15270154cbb48d8bfd9456909765c8b32c212c26f8168674f568a6
SSDEEP

49152:mGo9uGIlCGzQaODVNCZd3r9hiwpIm+uWXHAEUkgwJZpxm2TfU/LbLo4xBxh:njv8WODbCb

Score

10^/10

lumma discovery spyware stealer

Malware Config

Extracted

Family

lumma

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
2760	service123.exe
1580	service123.exe
3252	service123.exe

Loads dropped DLL 3 IoCs

pid	Process
2760	service123.exe
1580	service123.exe
3252	service123.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	Set-up.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	service123.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Set-up.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Set-up.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3124	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 2760	4076	Set-up.exe	72
PID 4076 wrote to memory of 2760	4076	Set-up.exe	72
PID 4076 wrote to memory of 2760	4076	Set-up.exe	72
PID 4076 wrote to memory of 3124	4076	Set-up.exe	73
PID 4076 wrote to memory of 3124	4076	Set-up.exe	73
PID 4076 wrote to memory of 3124	4076	Set-up.exe	73

C:\Users\Admin\AppData\Local\Temp\Set-up.exe
"C:\Users\Admin\AppData\Local\Temp\Set-up.exe"
1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3124

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1580

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1580-22-0x0000000001340000-0x0000000001352000-memory.dmp

Filesize
72KB

Download
memory/2760-12-0x0000000001340000-0x0000000001352000-memory.dmp

Filesize
72KB

Download
memory/2760-13-0x0000000074380000-0x00000000744B4000-memory.dmp

Filesize
1.2MB

Download
memory/3252-37-0x0000000001340000-0x0000000001352000-memory.dmp

Filesize
72KB

Download
memory/4076-0-0x0000000000830000-0x00000000011BB000-memory.dmp

Filesize
9.5MB

Download
memory/4076-1-0x0000000000830000-0x00000000011BB000-memory.dmp

Filesize
9.5MB

Download
memory/4076-10-0x0000000000830000-0x00000000011BB000-memory.dmp

Filesize
9.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads