lumma | 3c6116a035069356a08c478ec90a8be22a0ba2e8c749dd4d33f7cad2a3ee86ac

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 14:25

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General

Target

bfc8fbb265274e407ebb9b2be9b6630f.exe
Size

1.8MB
MD5

bfc8fbb265274e407ebb9b2be9b6630f
SHA1

0aee8ad1ee7bc01cb6994f8de0b714a2ad3a64c2
SHA256

3c6116a035069356a08c478ec90a8be22a0ba2e8c749dd4d33f7cad2a3ee86ac
SHA512

e3862fc31f091ba641d8262e0ce0fca53482ed4870a206b1763ae81e9a7ebe507634d531e0a955c7dbfa67f17c546ad5215dadc91fbbc787673575938b8777a0
SSDEEP

49152:2doxdBUtSkPt5A+cjDLeNETVM8xFVJ1x2c9LJ:2CTBUtSEA7jDCNEa8/VJ3X

Score

10^/10

lumma stealc stok discovery evasion spyware stealer trojan

Malware Config

Extracted

Family

lumma

https://sordid-snaked.cyou/api

https://awake-weaves.cyou/api

https://wrathful-jammy.cyou/api

https://debonairnukk.xyz/api

https://diffuculttan.xyz/api

https://effecterectz.xyz/api

https://deafeninggeh.biz/api

https://immureprech.biz/api

https://tacitglibbr.biz/api

Extracted

Family

stealc

Botnet

stok

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Extracted

Family

lumma

https://tacitglibbr.biz/api

Signatures

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Lumma family
lumma

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	31FW7DWPSNW6ESNLX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	31FW7DWPSNW6ESNLX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	31FW7DWPSNW6ESNLX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	31FW7DWPSNW6ESNLX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	31FW7DWPSNW6ESNLX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	31FW7DWPSNW6ESNLX.exe

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	bfc8fbb265274e407ebb9b2be9b6630f.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	31FW7DWPSNW6ESNLX.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	6X75CBI39OYX1384I12.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 6 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	bfc8fbb265274e407ebb9b2be9b6630f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bfc8fbb265274e407ebb9b2be9b6630f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	31FW7DWPSNW6ESNLX.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	31FW7DWPSNW6ESNLX.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	6X75CBI39OYX1384I12.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6X75CBI39OYX1384I12.exe

Executes dropped EXE 2 IoCs

pid	Process
2644	31FW7DWPSNW6ESNLX.exe
2512	6X75CBI39OYX1384I12.exe

Identifies Wine through registry keys 2 TTPs 3 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	bfc8fbb265274e407ebb9b2be9b6630f.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	31FW7DWPSNW6ESNLX.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	6X75CBI39OYX1384I12.exe

Loads dropped DLL 3 IoCs

pid	Process
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	31FW7DWPSNW6ESNLX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	31FW7DWPSNW6ESNLX.exe

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 NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2644	31FW7DWPSNW6ESNLX.exe
2512	6X75CBI39OYX1384I12.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 3 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	6X75CBI39OYX1384I12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfc8fbb265274e407ebb9b2be9b6630f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31FW7DWPSNW6ESNLX.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2088	bfc8fbb265274e407ebb9b2be9b6630f.exe
2644	31FW7DWPSNW6ESNLX.exe
2512	6X75CBI39OYX1384I12.exe
2644	31FW7DWPSNW6ESNLX.exe
2644	31FW7DWPSNW6ESNLX.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	31FW7DWPSNW6ESNLX.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2644	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	32
PID 2088 wrote to memory of 2644	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	32
PID 2088 wrote to memory of 2644	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	32
PID 2088 wrote to memory of 2644	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	32
PID 2088 wrote to memory of 2512	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	33
PID 2088 wrote to memory of 2512	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	33
PID 2088 wrote to memory of 2512	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	33
PID 2088 wrote to memory of 2512	2088	bfc8fbb265274e407ebb9b2be9b6630f.exe	33

C:\Users\Admin\AppData\Local\Temp\bfc8fbb265274e407ebb9b2be9b6630f.exe
"C:\Users\Admin\AppData\Local\Temp\bfc8fbb265274e407ebb9b2be9b6630f.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\31FW7DWPSNW6ESNLX.exe
  "C:\Users\Admin\AppData\Local\Temp\31FW7DWPSNW6ESNLX.exe"
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Windows security modification
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644
- C:\Users\Admin\AppData\Local\Temp\6X75CBI39OYX1384I12.exe
  "C:\Users\Admin\AppData\Local\Temp\6X75CBI39OYX1384I12.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

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

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\6X75CBI39OYX1384I12.exe

Filesize
1.7MB

MD5
e33dc32f04e77bc26482baccb87b9795

SHA1
e4a57ead636bd006cecb7d9ec5e9aa36432e1372

SHA256
b2ecbacaf99db2c41066c1914b8b3116b5e25683e6552802a24b08d00d563431

SHA512
13d735438d20b0d352719c6e32584ed6abfaad6092ff9124393b3f1c6d6aa4314d0ce27c16cc654583973369572ec823423be9be04e34c50184976c0a35c96cf

Download Submit
\Users\Admin\AppData\Local\Temp\31FW7DWPSNW6ESNLX.exe

Filesize
2.6MB

MD5
f86c08a75747002a2a7cd3fbc5fe05c8

SHA1
7b9776338fe3a06350c16bc62e927f5ba6490723

SHA256
5b4d3426cd705909f38f2a136e2a5a1e593fd66a68c01b0e715f533d20a4218a

SHA512
2b8ab4cb0d7aba429f5835462a1c16dd4d0bc1a13c40c5ddf27a900295ca3c168dba79b8af97b26f80017755514e43f71120f1c309dece1fabd41d9147e63790

Download Submit
memory/2088-13-0x00000000061F0000-0x00000000064A0000-memory.dmp

Filesize
2.7MB

Download
memory/2088-23-0x0000000000E60000-0x00000000012FD000-memory.dmp

Filesize
4.6MB

Download
memory/2088-4-0x0000000000E60000-0x00000000012FD000-memory.dmp

Filesize
4.6MB

Download
memory/2088-5-0x0000000000E60000-0x00000000012FD000-memory.dmp

Filesize
4.6MB

Download
memory/2088-2-0x0000000000E61000-0x0000000000E86000-memory.dmp

Filesize
148KB

Download
memory/2088-1-0x0000000077E30000-0x0000000077E32000-memory.dmp

Filesize
8KB

Download
memory/2088-16-0x00000000061F0000-0x00000000064A0000-memory.dmp

Filesize
2.7MB

Download
memory/2088-14-0x0000000000E60000-0x00000000012FD000-memory.dmp

Filesize
4.6MB

Download
memory/2088-0-0x0000000000E60000-0x00000000012FD000-memory.dmp

Filesize
4.6MB

Download
memory/2088-26-0x00000000061F0000-0x0000000006885000-memory.dmp

Filesize
6.6MB

Download
memory/2088-3-0x0000000000E60000-0x00000000012FD000-memory.dmp

Filesize
4.6MB

Download
memory/2512-28-0x0000000000C70000-0x0000000001305000-memory.dmp

Filesize
6.6MB

Download
memory/2512-30-0x0000000000C70000-0x0000000001305000-memory.dmp

Filesize
6.6MB

Download
memory/2644-27-0x0000000000060000-0x0000000000310000-memory.dmp

Filesize
2.7MB

Download
memory/2644-25-0x0000000000060000-0x0000000000310000-memory.dmp

Filesize
2.7MB

Download
memory/2644-17-0x0000000000060000-0x0000000000310000-memory.dmp

Filesize
2.7MB

Download
memory/2644-31-0x0000000000060000-0x0000000000310000-memory.dmp

Filesize
2.7MB

Download
memory/2644-34-0x0000000000060000-0x0000000000310000-memory.dmp

Filesize
2.7MB

Download