lumma | 41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 02:34

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General

Target

41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
Size

1.7MB
MD5

92c6b7aa6070e9f99b8c4f896b577578
SHA1

a651bb1684cc879c331fe8a42e9d07ad389853ca
SHA256

41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24
SHA512

dec9c2af0b500f705f2e6cb07c5b7fe0fd19df98ff72dba204d762480fe020bf62875491f6129811bc6e4dc6902fcf5b88fab19a21edcd3f15de5b555f7dc3e3
SSDEEP

49152:glsFh0DpF5ScZFGi2Jd3S2D9PPJYrwvasUcDXIpD:gKEpTYz3/pvasAJ

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	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	FL438H17TOSTLW7TWXGU0NMH1QZXD.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__	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	S4UGOZVWDJOF57JXXVDRD61.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\VideoBiosVersion	S4UGOZVWDJOF57JXXVDRD61.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	S4UGOZVWDJOF57JXXVDRD61.exe

Executes dropped EXE 2 IoCs

pid	Process
2736	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
2592	S4UGOZVWDJOF57JXXVDRD61.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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	S4UGOZVWDJOF57JXXVDRD61.exe

Loads dropped DLL 3 IoCs

pid	Process
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.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	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	FL438H17TOSTLW7TWXGU0NMH1QZXD.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
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2736	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
2592	S4UGOZVWDJOF57JXXVDRD61.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	S4UGOZVWDJOF57JXXVDRD61.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
2736	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
2592	S4UGOZVWDJOF57JXXVDRD61.exe
2736	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
2736	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	FL438H17TOSTLW7TWXGU0NMH1QZXD.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2736	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	32
PID 2524 wrote to memory of 2736	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	32
PID 2524 wrote to memory of 2736	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	32
PID 2524 wrote to memory of 2736	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	32
PID 2524 wrote to memory of 2592	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	33
PID 2524 wrote to memory of 2592	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	33
PID 2524 wrote to memory of 2592	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	33
PID 2524 wrote to memory of 2592	2524	41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe	33

C:\Users\Admin\AppData\Local\Temp\41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
"C:\Users\Admin\AppData\Local\Temp\41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.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:2524
- C:\Users\Admin\AppData\Local\Temp\FL438H17TOSTLW7TWXGU0NMH1QZXD.exe
  "C:\Users\Admin\AppData\Local\Temp\FL438H17TOSTLW7TWXGU0NMH1QZXD.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:2736
- C:\Users\Admin\AppData\Local\Temp\S4UGOZVWDJOF57JXXVDRD61.exe
  "C:\Users\Admin\AppData\Local\Temp\S4UGOZVWDJOF57JXXVDRD61.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:2592

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\S4UGOZVWDJOF57JXXVDRD61.exe

Filesize
2.8MB

MD5
f10511fc918f0b1648e448adabadb5ac

SHA1
de86f9989345f527964309965735cdaee4935ff9

SHA256
b60a85fbc4a8c4db17b7a02e922fa6354ed7bab533fab292fc79b6c73e17e1b4

SHA512
414055e0a1f1d3c625de5f36e69530bf8f3e88b77e56ec95dd64761580a0f1ac32cd42b1ad30fb8ad9ae8382d610a4ea7d8c0c368b03a615b046cfeaea22040b

Download Submit
\Users\Admin\AppData\Local\Temp\FL438H17TOSTLW7TWXGU0NMH1QZXD.exe

Filesize
1.6MB

MD5
c22653a5dec4646861e3a66a0275dbc5

SHA1
627a1c28de11ba6bed383a2947aa482c1cfa14e7

SHA256
7d70a4737819c33b2875e14f862a474910e1d8618ae4b16dc194ca9a68dae9c7

SHA512
e1c1add085fbf978055385288f613fe65011d8c827d7c9d73b0f06ee303df87b4877d68b30988aea0f7730c854b23db11dbfdda313f1a2a6f00ede0aaca61dac

Download Submit
memory/2524-15-0x0000000006910000-0x0000000006D66000-memory.dmp

Filesize
4.3MB

Download
memory/2524-13-0x0000000001070000-0x00000000014F1000-memory.dmp

Filesize
4.5MB

Download
memory/2524-4-0x0000000001070000-0x00000000014F1000-memory.dmp

Filesize
4.5MB

Download
memory/2524-2-0x0000000001071000-0x0000000001096000-memory.dmp

Filesize
148KB

Download
memory/2524-12-0x0000000006910000-0x0000000006D66000-memory.dmp

Filesize
4.3MB

Download
memory/2524-1-0x0000000077660000-0x0000000077662000-memory.dmp

Filesize
8KB

Download
memory/2524-0-0x0000000001070000-0x00000000014F1000-memory.dmp

Filesize
4.5MB

Download
memory/2524-3-0x0000000001070000-0x00000000014F1000-memory.dmp

Filesize
4.5MB

Download
memory/2524-24-0x0000000006910000-0x0000000006E14000-memory.dmp

Filesize
5.0MB

Download
memory/2524-25-0x0000000001070000-0x00000000014F1000-memory.dmp

Filesize
4.5MB

Download
memory/2592-27-0x0000000000FC0000-0x00000000014C4000-memory.dmp

Filesize
5.0MB

Download
memory/2592-29-0x0000000000FC0000-0x00000000014C4000-memory.dmp

Filesize
5.0MB

Download
memory/2736-18-0x00000000000F0000-0x0000000000546000-memory.dmp

Filesize
4.3MB

Download
memory/2736-17-0x00000000000F0000-0x0000000000546000-memory.dmp

Filesize
4.3MB

Download
memory/2736-16-0x00000000000F0000-0x0000000000546000-memory.dmp

Filesize
4.3MB

Download
memory/2736-32-0x00000000000F0000-0x0000000000546000-memory.dmp

Filesize
4.3MB

Download