lumma | af7db44f0971145d05b8ce1757fc2f8d0f549f39d2ea1818a96851f8d1df07eb

Analysis

max time kernel
93s
max time network
94s
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, 20:31

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General

Target

file.exe
Size

580KB
MD5

d2a66a09ec4c30b500b8a250ecac14eb
SHA1

d4f675b2757df6173c14d3fe9fa6f7b69c72e5f3
SHA256

af7db44f0971145d05b8ce1757fc2f8d0f549f39d2ea1818a96851f8d1df07eb
SHA512

c9b10576ae5b6fb2057a4ff6acfa45b25522ee739145faeac3b575f6b7f8e6f7dbc924ecb41a273c8c2b016c7aa6676e34630b5bdc8fb6b7059b772b86b326bd
SSDEEP

12288:vKLvg3InPBIPKOn8qRpbxjWJOnW7bYRV/WEIX36PYPqIrK8:vKc3IPQjoB7U//WEIn6PCd

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/3456-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-25-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-26-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-42-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-43-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-55-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-72-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-73-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-80-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-81-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3456-98-0x0000000000400000-0x0000000000676000-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
2452	BAAFBFBAAK.exe

Loads dropped DLL 2 IoCs

pid	Process
3456	MSBuild.exe
3456	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 3592 set thread context of 3456	3592	file.exe	83
PID 2452 set thread context of 748	2452	BAAFBFBAAK.exe	93

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BAAFBFBAAK.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3352	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3456	MSBuild.exe
3456	MSBuild.exe
3456	MSBuild.exe
3456	MSBuild.exe
3456	MSBuild.exe
3456	MSBuild.exe
3456	MSBuild.exe
3456	MSBuild.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 228	3592	file.exe	82
PID 3592 wrote to memory of 228	3592	file.exe	82
PID 3592 wrote to memory of 228	3592	file.exe	82
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3592 wrote to memory of 3456	3592	file.exe	83
PID 3456 wrote to memory of 2452	3456	MSBuild.exe	89
PID 3456 wrote to memory of 2452	3456	MSBuild.exe	89
PID 3456 wrote to memory of 2452	3456	MSBuild.exe	89
PID 2452 wrote to memory of 3924	2452	BAAFBFBAAK.exe	92
PID 2452 wrote to memory of 3924	2452	BAAFBFBAAK.exe	92
PID 2452 wrote to memory of 3924	2452	BAAFBFBAAK.exe	92
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 2452 wrote to memory of 748	2452	BAAFBFBAAK.exe	93
PID 3456 wrote to memory of 4800	3456	MSBuild.exe	97
PID 3456 wrote to memory of 4800	3456	MSBuild.exe	97
PID 3456 wrote to memory of 4800	3456	MSBuild.exe	97
PID 4800 wrote to memory of 3352	4800	cmd.exe	99
PID 4800 wrote to memory of 3352	4800	cmd.exe	99
PID 4800 wrote to memory of 3352	4800	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:228
- 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:3456
- - C:\ProgramData\BAAFBFBAAK.exe
    "C:\ProgramData\BAAFBFBAAK.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2452
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      4⤵
      PID:3924
  - - 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:748
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HIIDGCGCBFBA" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4800
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3352

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\BAAFBFBAAK.exe

Filesize
547KB

MD5
20732fdc3a5dba86cba29107799c65c9

SHA1
18b9450d585a8633a1b72e91cb3ee4a5d5acec6e

SHA256
9037df6561a0aedab6049df8dade28ed2eb0b830d0eb6061d8a7e633c1388303

SHA512
93de9f8e34e5374aa5d91394df9a6de0dfe8dbd5e7249feb085834e7ac41394d3380dfeb177a507eb164b5d16b1afa240c3c26bc0198c69e45fa15d54a9efc1d

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/748-97-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/748-96-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/748-95-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/748-93-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2452-92-0x0000000000F84000-0x0000000000F85000-memory.dmp

Filesize
4KB

Download
memory/3456-43-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-10-0x00000000221B0000-0x000000002240F000-memory.dmp

Filesize
2.4MB

Download
memory/3456-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-55-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-98-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-42-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-73-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-80-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-81-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-26-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-25-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-72-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3456-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3592-0-0x0000000000BEC000-0x0000000000BEE000-memory.dmp

Filesize
8KB

Download