lumma | 4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c

Analysis

max time kernel
94s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2024 13:15

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General

Target

4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe
Size

580KB
MD5

bc1acc2b1020f96cfdda7ff69a87bbb1
SHA1

0187652eeac3d058c419fcc9e060d8bd5e4235ed
SHA256

4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c
SHA512

0dc9e760b0bb8a0a641d237de6b00cfa7df047fe86012c2a3ca6424e60285ce6336b76d6322af9b658c0450b77cf79e40d574d447d0126fad0da8e92561548bb
SSDEEP

12288:c2qapAlfgoXFbrI3/oTBrESjdWKFLcXsIS8TC1apvJJUHKPHo24MdIisEO:Kawfg//8HjdWKFAXL7Satwq/hWzt

Score

10^/10

lumma vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

http://proxy.johnmccrea.com/

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

lumma

Signatures

Detect Vidar Stealer 15 IoCs

stealer

resource	yara_rule
behavioral2/memory/2388-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-25-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-26-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-42-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-43-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-71-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-72-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-79-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-80-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-81-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2388-98-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
3264	FBKJDGCGDA.exe

Loads dropped DLL 2 IoCs

pid	Process
2388	MSBuild.exe
2388	MSBuild.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4704 set thread context of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 3264 set thread context of 3488	3264	FBKJDGCGDA.exe	91

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1860	4704	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 6 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	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FBKJDGCGDA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4480	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2388	MSBuild.exe
2388	MSBuild.exe
2388	MSBuild.exe
2388	MSBuild.exe
2388	MSBuild.exe
2388	MSBuild.exe
2388	MSBuild.exe
2388	MSBuild.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 4704 wrote to memory of 2388	4704	4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe	82
PID 2388 wrote to memory of 3264	2388	MSBuild.exe	88
PID 2388 wrote to memory of 3264	2388	MSBuild.exe	88
PID 2388 wrote to memory of 3264	2388	MSBuild.exe	88
PID 3264 wrote to memory of 3724	3264	FBKJDGCGDA.exe	90
PID 3264 wrote to memory of 3724	3264	FBKJDGCGDA.exe	90
PID 3264 wrote to memory of 3724	3264	FBKJDGCGDA.exe	90
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 3264 wrote to memory of 3488	3264	FBKJDGCGDA.exe	91
PID 2388 wrote to memory of 4164	2388	MSBuild.exe	99
PID 2388 wrote to memory of 4164	2388	MSBuild.exe	99
PID 2388 wrote to memory of 4164	2388	MSBuild.exe	99
PID 4164 wrote to memory of 4480	4164	cmd.exe	101
PID 4164 wrote to memory of 4480	4164	cmd.exe	101
PID 4164 wrote to memory of 4480	4164	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe
"C:\Users\Admin\AppData\Local\Temp\4c283c77fa238d5b1bb0ea1a881fe20a8d784fe1b7ab95032ac0981efda6fe6c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\ProgramData\FBKJDGCGDA.exe
    "C:\ProgramData\FBKJDGCGDA.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3264
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      4⤵
      PID:3724
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:3488
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FBFCGIDAKECG" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4164
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 264
  2⤵
  - Program crash
  PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4704 -ip 4704
1⤵
PID:1344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\FBKJDGCGDA.exe

Filesize
547KB

MD5
7e0518a1ebb4ac7ae6b2e833acdced20

SHA1
cb84bd346dbe556aeec635cd6e4fe8c3a28b0ba7

SHA256
5938cd354f86ee5c58349a995dac3bcfd593bf5920fe46d080f13fd93a65beb2

SHA512
c7e00fbd57be8b44f6761f1d471b931a99c01152e4909ae55c8eb9dae04374268779356d33e4a2052eb6c1e8dab8696b0797fff759502152202751c066bb18ed

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2388-81-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-72-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-11-0x00000000221E0000-0x000000002243F000-memory.dmp

Filesize
2.4MB

Download
memory/2388-25-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-26-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-42-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-43-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-71-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-79-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-98-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-80-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2388-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3264-92-0x0000000000D64000-0x0000000000D65000-memory.dmp

Filesize
4KB

Download
memory/3488-93-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/3488-95-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/3488-97-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/3488-96-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/4704-0-0x0000000000E2C000-0x0000000000E2E000-memory.dmp

Filesize
8KB

Download