lumma | de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89

Resubmissions

03/10/2024, 20:46

241003-zklthazamd10

02/10/2024, 15:16

241002-snmfwawhqd10

01/10/2024, 01:49

241001-b8w3davemp10

Analysis

max time kernel
94s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 20:46

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General

Target
de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
Size 404KB
Sample241003-zklthazamd
SHA256 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89
MD5 38dabc7063c0a175a12c30bd44cf3dbc
SHA1 6d7aabebd8a417168e220c7497f4bc38c314da3b
SHA512 674760ad37cf7886ca4cd786e4d1966d3827fdad008a85a125e18bd474d073dae8d4296427253bb86e78d3173a300611ee5eb2e01c1f968700679350fc17a24d
SSDEEP 12288:XY1HgTKqPXxbx28l1ukOy325R4RQMJnJ9w6EO:XY1AtPB0KwkU5GRnJnxt
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

lumma vidar a669a86f8433a1e88901711c0f772c97 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

Botnet

a669a86f8433a1e88901711c0f772c97

https://t.me/jamsemlg
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 14 IoCs

stealer

resource	yara_rule
behavioral2/memory/4220-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-21-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-22-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-39-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-40-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-56-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-57-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-87-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-88-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-95-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/4220-96-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/872-97-0x0000000074E40000-0x00000000755F0000-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

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Executes dropped EXE 1 IoCs

pid	Process
1492	GHJJDGHCBG.exe

Loads dropped DLL 2 IoCs

pid	Process
4220	RegAsm.exe
4220	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 3 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

Credentials from Web Browsers
T1555.003
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 872 set thread context of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 1492 set thread context of 1880	1492	GHJJDGHCBG.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 1 IoCs

pid	pid_target	Process	procid_target
3180	1492	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GHJJDGHCBG.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	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
4104	timeout.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4220	RegAsm.exe
4220	RegAsm.exe
4220	RegAsm.exe
4220	RegAsm.exe
4220	RegAsm.exe
4220	RegAsm.exe
4220	RegAsm.exe
4220	RegAsm.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 872 wrote to memory of 2860	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	83
PID 872 wrote to memory of 2860	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	83
PID 872 wrote to memory of 2860	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	83
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 872 wrote to memory of 4220	872	de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe	84
PID 4220 wrote to memory of 1492	4220	RegAsm.exe	94
PID 4220 wrote to memory of 1492	4220	RegAsm.exe	94
PID 4220 wrote to memory of 1492	4220	RegAsm.exe	94
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 1492 wrote to memory of 1880	1492	GHJJDGHCBG.exe	96
PID 4220 wrote to memory of 3136	4220	RegAsm.exe	100
PID 4220 wrote to memory of 3136	4220	RegAsm.exe	100
PID 4220 wrote to memory of 3136	4220	RegAsm.exe	100
PID 3136 wrote to memory of 4104	3136	cmd.exe	102
PID 3136 wrote to memory of 4104	3136	cmd.exe	102
PID 3136 wrote to memory of 4104	3136	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
"C:\Users\Admin\AppData\Local\Temp\de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:872
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2860
- 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:4220
- - C:\ProgramData\GHJJDGHCBG.exe
    "C:\ProgramData\GHJJDGHCBG.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1492
  - - 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:1880
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 296
      4⤵
      Program crash
      PID:3180
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CBFBKFIDHIDG" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3136
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1492 -ip 1492
1⤵
PID:1196

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

GHJJDGHCBG.exe

Path C:\ProgramData\GHJJDGHCBG.exe
Size 527KB
SHA256 f2bd0be0369b4e63c70a027e42487f59abb5a8518f112492c661f62a023f6209
MD5 8d3b6b984fde10c49443781bb0c2a0a5
SHA1 5dcc3cbe47e21e040a10c995deea72c858bd383d
SHA512 9c6ddced580816242bdd18da7cf12eb71ea1aa6bfaf2759fd61c001eff537a0f05238f1aaae7b9f37b84ddbf0b766f854f8a6b0dd70b1409899bda8f9df12055
SSDEEP 12288:sUBIdSw37R4clW5IIT53dAhjSq+fuVdQqd20DIWPUEO:bm7OJnT53Bq0u8E5Ut
MD5 SHA1 SHA512 SSDEEP

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mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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memory/872-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

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memory/872-1-0x0000000000B60000-0x0000000000BCA000-memory.dmp

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memory/872-11-0x0000000074E40000-0x00000000755F0000-memory.dmp

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memory/872-97-0x0000000074E40000-0x00000000755F0000-memory.dmp

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memory/1492-108-0x0000000001020000-0x0000000001021000-memory.dmp

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memory/1880-113-0x0000000000400000-0x0000000000463000-memory.dmp

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memory/1880-112-0x0000000000400000-0x0000000000463000-memory.dmp

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memory/1880-111-0x0000000000400000-0x0000000000463000-memory.dmp

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memory/1880-109-0x0000000000400000-0x0000000000463000-memory.dmp

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memory/4220-57-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-39-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-40-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-87-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-88-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-95-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-96-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-56-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-24-0x0000000022730000-0x000000002298F000-memory.dmp

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memory/4220-22-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-21-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-8-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-6-0x0000000000400000-0x0000000000676000-memory.dmp

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memory/4220-3-0x0000000000400000-0x0000000000676000-memory.dmp

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