lumma | 2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 01:15

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General

Target

2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe
Size

401KB
MD5

cd681a24c9d79c3af8caa1843296a062
SHA1

c18bfd79658cd691170595dd5b4dd586c21b954c
SHA256

2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf
SHA512

2527a1a2acdf8c87e4b459683f6f287bc6fb65ff9eb979c830ec9dfd685380c633787b247b65c3fe3bf57f5c598f48700742f8d8d056c971ed5744e2eb9f5cb5
SSDEEP

12288:CgIVaGe6BEIaaJLq2vru6fv8PF5Nn5e4AkArjUdG8L:NGmLaufTe5rUdG8L

Score

10^/10

lumma vidar 728eadc0b38790aac08b64fd1b8adb1f credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

Botnet

728eadc0b38790aac08b64fd1b8adb1f

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

https://questionmwq.shop/api

Signatures

Detect Vidar Stealer 13 IoCs

stealer

resource	yara_rule
behavioral2/memory/2432-4-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-10-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-8-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-20-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-21-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-37-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-38-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-54-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-55-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-79-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-80-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-87-0x0000000000400000-0x0000000000675000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-88-0x0000000000400000-0x0000000000675000-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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Executes dropped EXE 1 IoCs

pid	Process
2512	JDGCFBAFBF.exe

Loads dropped DLL 2 IoCs

pid	Process
2432	RegAsm.exe
2432	RegAsm.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
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
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 2 IoCs

description	pid	Process	procid_target
PID 4428 set thread context of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 2512 set thread context of 4700	2512	JDGCFBAFBF.exe	96

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
956	4700	WerFault.exe	96
2332	4700	WerFault.exe	96

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	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JDGCFBAFBF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2820	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 4428 wrote to memory of 3000	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	83
PID 4428 wrote to memory of 3000	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	83
PID 4428 wrote to memory of 3000	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	83
PID 4428 wrote to memory of 4612	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	84
PID 4428 wrote to memory of 4612	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	84
PID 4428 wrote to memory of 4612	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	84
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 4428 wrote to memory of 2432	4428	2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe	85
PID 2432 wrote to memory of 2512	2432	RegAsm.exe	93
PID 2432 wrote to memory of 2512	2432	RegAsm.exe	93
PID 2432 wrote to memory of 2512	2432	RegAsm.exe	93
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2512 wrote to memory of 4700	2512	JDGCFBAFBF.exe	96
PID 2432 wrote to memory of 3016	2432	RegAsm.exe	102
PID 2432 wrote to memory of 3016	2432	RegAsm.exe	102
PID 2432 wrote to memory of 3016	2432	RegAsm.exe	102
PID 3016 wrote to memory of 2820	3016	cmd.exe	104
PID 3016 wrote to memory of 2820	3016	cmd.exe	104
PID 3016 wrote to memory of 2820	3016	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe
"C:\Users\Admin\AppData\Local\Temp\2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:3000
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2432
- - C:\ProgramData\JDGCFBAFBF.exe
    "C:\ProgramData\JDGCFBAFBF.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2512
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:4700
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 1352
        5⤵
        Program crash
        
        PID:956
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 1372
        5⤵
        Program crash
        
        PID:2332
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DBKFHCFBGIIJ" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3016
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4700 -ip 4700
1⤵
PID:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4700 -ip 4700
1⤵
PID:4608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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

Replay Monitor

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Downloads

C:\ProgramData\JDGCFBAFBF.exe

Filesize
354KB

MD5
384a847ad2833788fa253433fd2eea8d

SHA1
1984d8788fe40bd95a90d7d4e9dea6c4e4ff6201

SHA256
de30491736617249b3e80fc9436ecf0f7675b3c3014509398c3db7298f93336a

SHA512
bcdbd44837629d8881c29a7c7f6a2d4e98b52fbc49952bad2c89340a1dee18fac9987aaa8a3d91905a1f88a216c0e2501201a8665f3df7d5f627ff71a2418aac

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/2432-8-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-79-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-10-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-88-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-87-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-20-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-21-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-22-0x00000000221F0000-0x000000002244F000-memory.dmp

Filesize
2.4MB

Download
memory/2432-37-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-38-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-54-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-55-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-4-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2432-80-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2512-102-0x0000000071F2E000-0x0000000071F2F000-memory.dmp

Filesize
4KB

Download
memory/2512-111-0x0000000071F20000-0x00000000726D0000-memory.dmp

Filesize
7.7MB

Download
memory/2512-120-0x0000000071F20000-0x00000000726D0000-memory.dmp

Filesize
7.7MB

Download
memory/2512-104-0x0000000071F20000-0x00000000726D0000-memory.dmp

Filesize
7.7MB

Download
memory/2512-103-0x00000000000E0000-0x000000000013A000-memory.dmp

Filesize
360KB

Download
memory/4428-6-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4428-1-0x00000000009D0000-0x0000000000A38000-memory.dmp

Filesize
416KB

Download
memory/4428-13-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4428-2-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4428-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/4700-106-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4700-109-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4700-112-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4700-119-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download