lumma | c7a9b126d27a142ad49c3b46591716348393efae2bf563df648701827bd7f80c

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-10-2024 07:51

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General

Target

file.exe
Size

559KB
MD5

2ab4c1827edd0f4dc810cf0f9b3bd30d
SHA1

a32347945672d6c1b7bd275f2d62b62d9749bebb
SHA256

c7a9b126d27a142ad49c3b46591716348393efae2bf563df648701827bd7f80c
SHA512

d77b67a0d760ec037c9d2993b4ae0604ee1476ca241eff2ddd3df744a2909f5ee8ac99f9a713fe083a8604d480bacaac2511960945ce67b18fa003d65663214a
SSDEEP

12288:M99eIicBJZdNHYb9KZ6VmdS3WgprdJCf5DrRR0TnrPbEO:EDJrZYxLWgxO/RR0TDbt

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

Extracted

Family

lumma

https://beearvagueo.site/api

Signatures

Detect Vidar Stealer 16 IoCs

stealer

resource	yara_rule
behavioral1/memory/2060-15-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-12-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-10-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-16-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-17-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-30-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-31-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-60-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-61-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-68-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-69-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-70-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2060-134-0x0000000000400000-0x0000000000676000-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
3012	BFCFBFBFBK.exe

Loads dropped DLL 8 IoCs

pid	Process
2060	MSBuild.exe
2060	MSBuild.exe
2060	MSBuild.exe
2060	MSBuild.exe
2060	MSBuild.exe
2532	WerFault.exe
2532	WerFault.exe
2532	WerFault.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 2072 set thread context of 2060	2072	file.exe	30
PID 3012 set thread context of 2936	3012	BFCFBFBFBK.exe	36

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3044	2072	WerFault.exe	29
2532	3012	WerFault.exe	35

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	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BFCFBFBFBK.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 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
1384	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2060	MSBuild.exe
2060	MSBuild.exe
2060	MSBuild.exe
2060	MSBuild.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 2060	2072	file.exe	30
PID 2072 wrote to memory of 3044	2072	file.exe	31
PID 2072 wrote to memory of 3044	2072	file.exe	31
PID 2072 wrote to memory of 3044	2072	file.exe	31
PID 2072 wrote to memory of 3044	2072	file.exe	31
PID 2060 wrote to memory of 3012	2060	MSBuild.exe	35
PID 2060 wrote to memory of 3012	2060	MSBuild.exe	35
PID 2060 wrote to memory of 3012	2060	MSBuild.exe	35
PID 2060 wrote to memory of 3012	2060	MSBuild.exe	35
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2936	3012	BFCFBFBFBK.exe	36
PID 3012 wrote to memory of 2532	3012	BFCFBFBFBK.exe	37
PID 3012 wrote to memory of 2532	3012	BFCFBFBFBK.exe	37
PID 3012 wrote to memory of 2532	3012	BFCFBFBFBK.exe	37
PID 3012 wrote to memory of 2532	3012	BFCFBFBFBK.exe	37
PID 2060 wrote to memory of 2284	2060	MSBuild.exe	38
PID 2060 wrote to memory of 2284	2060	MSBuild.exe	38
PID 2060 wrote to memory of 2284	2060	MSBuild.exe	38
PID 2060 wrote to memory of 2284	2060	MSBuild.exe	38
PID 2284 wrote to memory of 1384	2284	cmd.exe	40
PID 2284 wrote to memory of 1384	2284	cmd.exe	40
PID 2284 wrote to memory of 1384	2284	cmd.exe	40
PID 2284 wrote to memory of 1384	2284	cmd.exe	40

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:2072
- 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:2060
- - C:\ProgramData\BFCFBFBFBK.exe
    "C:\ProgramData\BFCFBFBFBK.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3012
  - - 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:2936
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 92
      4⤵
      Loads dropped DLL
      Program crash
      PID:2532
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EHCGIJDHDGDB" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2284
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 92
  2⤵
  - Program crash
  PID:3044

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

Replay Monitor

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Downloads

C:\ProgramData\BFCFBFBFBK.exe

Filesize
527KB

MD5
a16e47444d809d548bd0ba7c9869750a

SHA1
c1ce536bdad56eb97625a1ee53bfd1f3afeb4ff6

SHA256
ea58b049c423125f289e21177fba00b8494e6d056a2cac115ab6357fc9adace4

SHA512
56f81c4cf23e8705d19afc576b4ad3d9acbc6c19e4100a5ac8ebb6615452bbcc5f70ced5adcf3f8bbfe155218ca274e9e2a6555d38c6e3c269b82f0cbe7430e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabEB7A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarEB9C.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2060-60-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-70-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-5-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-10-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-16-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-17-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-19-0x000000001B870000-0x000000001BACF000-memory.dmp

Filesize
2.4MB

Download
memory/2060-30-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-31-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-12-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-134-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-61-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-68-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-69-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-15-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2060-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2072-0-0x0000000000428000-0x000000000042A000-memory.dmp

Filesize
8KB

Download
memory/2936-95-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-91-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-90-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-89-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-88-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-87-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-86-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-93-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-94-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2936-133-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/3012-85-0x0000000001270000-0x0000000001271000-memory.dmp

Filesize
4KB

Download