lumma | 39de3bc40e97290cf1b0cf6bc898a40bf977f727821052c158fab29bd877747d

Resubmissions

28/02/2025, 06:16

250228-g1mrmatqw4 10

28/02/2025, 06:14

250228-gzfxpasyfw 10

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/02/2025, 06:14

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General

Target

Captiva.exe
Size

7.0MB
MD5

8b7343c22fb99c26da8f3122c6cecdcd
SHA1

898ebaa6ae8293f24306475ea5029520a1533dbc
SHA256

fd37270bdce8937cc3cb0d4d99300f537daba57e70f36f40e4c767411f7938cd
SHA512

8d806c124656ebdf151f92ce9bb6024cb2fe17a5dafeb90c0ceff783c6e8c9044f00bc846727465f64f79946096d60d81d2434ae6cb05b6a18aee5bc05e4ba81
SSDEEP

98304:c3d8QkJDJ3m0R1yQXvCyCE28yW1cadMykTmERn50gxIbgSZtwzn05A4tcqQVIhvQ:p+0ncq/aDDWqR

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

https://uprootquincju.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2732	2628	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	Captiva.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	taskmgr.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe

Suspicious use of SendNotifyMessage 34 IoCs

pid	Process
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe
2528	taskmgr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2732	2628	Captiva.exe	30
PID 2628 wrote to memory of 2732	2628	Captiva.exe	30
PID 2628 wrote to memory of 2732	2628	Captiva.exe	30
PID 2628 wrote to memory of 2732	2628	Captiva.exe	30

C:\Users\Admin\AppData\Local\Temp\Captiva.exe
"C:\Users\Admin\AppData\Local\Temp\Captiva.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2628 -s 848
  2⤵
  - Program crash
  PID:2732

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2528-6-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/2628-0-0x0000000001757000-0x0000000001759000-memory.dmp

Filesize
8KB

Download
memory/2628-1-0x00000000001F0000-0x000000000024E000-memory.dmp

Filesize
376KB

Download