lumma | 8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90

Analysis

max time kernel
94s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-10-2024 01:55

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General

Target

8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe
Size

551KB
MD5

28d92f32cdbc53214f6c1c36987cbf7d
SHA1

7844ef48201fe4fd8ec8ccfc95b19fb95eb3b3d9
SHA256

8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90
SHA512

99f8901e0e0db8e0db30a8aa2be5b11242e353c12a2c294379fef547f1ff75b95d1fa8f18c101ba975eca70b1ba65286d7734ba1c4669d5f25750e20ae403a3e
SSDEEP

12288:fKzXYJTVv5j0FcFAUdTYx8ptuBbiGFI0Y6MqsP:fsCVoUbtYx8WBbk

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://spirittunek.store/api

https://mobbipenju.store/api

https://eaglepawnoy.store/api

https://dissapoiznw.store/api

https://studennotediw.store/api

https://bathdoomgaz.store/api

Signatures

Detect Vidar Stealer 15 IoCs

stealer

resource	yara_rule
behavioral2/memory/2120-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-25-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-26-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-42-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-43-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-71-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-72-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-79-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-80-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-81-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2120-100-0x0000000000400000-0x0000000000676000-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
748	GCFCFCGCGI.exe

Loads dropped DLL 2 IoCs

pid	Process
2120	MSBuild.exe
2120	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 4840 set thread context of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 748 set thread context of 4136	748	GCFCFCGCGI.exe	96

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1456	4840	WerFault.exe	81
4024	748	WerFault.exe	94

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	GCFCFCGCGI.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.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
4444	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2120	MSBuild.exe
2120	MSBuild.exe
2120	MSBuild.exe
2120	MSBuild.exe
2120	MSBuild.exe
2120	MSBuild.exe
2120	MSBuild.exe
2120	MSBuild.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 4840 wrote to memory of 2120	4840	8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe	82
PID 2120 wrote to memory of 748	2120	MSBuild.exe	94
PID 2120 wrote to memory of 748	2120	MSBuild.exe	94
PID 2120 wrote to memory of 748	2120	MSBuild.exe	94
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 748 wrote to memory of 4136	748	GCFCFCGCGI.exe	96
PID 2120 wrote to memory of 2296	2120	MSBuild.exe	100
PID 2120 wrote to memory of 2296	2120	MSBuild.exe	100
PID 2120 wrote to memory of 2296	2120	MSBuild.exe	100
PID 2296 wrote to memory of 4444	2296	cmd.exe	102
PID 2296 wrote to memory of 4444	2296	cmd.exe	102
PID 2296 wrote to memory of 4444	2296	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe
"C:\Users\Admin\AppData\Local\Temp\8f684bccf9d9e64599a2d6c856bd0ea954116111c57e31b5d5aa954cd6ae6e90.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4840
- 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:2120
- - C:\ProgramData\GCFCFCGCGI.exe
    "C:\ProgramData\GCFCFCGCGI.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:748
  - - 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:4136
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 256
      4⤵
      Program crash
      PID:4024
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GCFCFCGCGIEH" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2296
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4840 -s 252
  2⤵
  - Program crash
  PID:1456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4840 -ip 4840
1⤵
PID:624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 748 -ip 748
1⤵
PID:1640

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\GCFCFCGCGI.exe

Filesize
518KB

MD5
6fed765edf07900c3dcb873171e0474f

SHA1
c7b4c9cd904ec62b6ca0fd256667a71e6ef57675

SHA256
3f49e1d9c6f54ba9f4198f4d312f02fbe180b36d3ccd389dcb37e994c8656c4c

SHA512
c82f316576bed8234718af54c280142c5d08bfbb8f061f8905535e0b922be1facfa43f8d02bcbbe7f63a66f2e2eab5884de0fab1b1e7c1fbe64c72ec9b6c8581

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/748-95-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/2120-100-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-43-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-10-0x0000000022260000-0x00000000224BF000-memory.dmp

Filesize
2.4MB

Download
memory/2120-25-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-26-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-42-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-71-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-72-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-79-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-80-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-81-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2120-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4136-96-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/4136-98-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/4136-99-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/4840-0-0x0000000000788000-0x000000000078A000-memory.dmp

Filesize
8KB

Download