lumma | cb98e04837d3eb000c1dc1810008b9cda08510d9f06b0a7bfa04746d91787a42

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2025, 13:29

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General

Target

BXWFJ_random.exe
Size

541KB
MD5

bbd4d7f2bc61c62c5f165e1aae3ca558
SHA1

8608e74b6eea632be57c61f617b2136dd3500e9d
SHA256

cb98e04837d3eb000c1dc1810008b9cda08510d9f06b0a7bfa04746d91787a42
SHA512

f10f1894b98e0b3e6e841e184d72d5950103651c2e4d08b779cea9fa22432266ed72587dcdb706298c5c1521289643d96056932cbfc78d458532b6188ffef870
SSDEEP

12288:jY6R+JQXjAnN3ykQO4L3yq7HFe9/jAoaLSsysL2nm60j:1TARQOS3ySY9/jA2lf0

Score

10^/10

lumma discovery stealer

Malware Config

Extracted

Family

lumma

https://toppyneedus.biz/api

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3648 set thread context of 3024	3648	BXWFJ_random.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3452	3648	WerFault.exe	80

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	BXWFJ_random.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BXWFJ_random.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3648 wrote to memory of 4960	3648	BXWFJ_random.exe	81
PID 3648 wrote to memory of 4960	3648	BXWFJ_random.exe	81
PID 3648 wrote to memory of 4960	3648	BXWFJ_random.exe	81
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82
PID 3648 wrote to memory of 3024	3648	BXWFJ_random.exe	82

C:\Users\Admin\AppData\Local\Temp\BXWFJ_random.exe
"C:\Users\Admin\AppData\Local\Temp\BXWFJ_random.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3648
- C:\Users\Admin\AppData\Local\Temp\BXWFJ_random.exe
  "C:\Users\Admin\AppData\Local\Temp\BXWFJ_random.exe"
  2⤵
  PID:4960
- C:\Users\Admin\AppData\Local\Temp\BXWFJ_random.exe
  "C:\Users\Admin\AppData\Local\Temp\BXWFJ_random.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 832
  2⤵
  - Program crash
  PID:3452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3648 -ip 3648
1⤵
PID:3356

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

Replay Monitor

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Downloads

memory/3024-4-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3024-6-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3024-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3648-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/3648-1-0x0000000000700000-0x000000000078E000-memory.dmp

Filesize
568KB

Download
memory/3648-2-0x0000000005690000-0x0000000005C34000-memory.dmp

Filesize
5.6MB

Download
memory/3648-7-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download