lumma | 55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d

Analysis

max time kernel
94s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 07:20

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General

Target

81cfbdcd567c50d28a6380910dd6cf83.exe
Size

1.7MB
MD5

81cfbdcd567c50d28a6380910dd6cf83
SHA1

3fac13a3e2416853ce16ed6052ba91e4ec978c86
SHA256

55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d
SHA512

fd083c0ec0a95175ef05afb2c60cc1990b868d0a5db483372a294bda2955db7dbe586ab9c3633a7bbb2bfc6f478e09b2f5e04fae41393a626dbb53345fc81838
SSDEEP

49152:vW/ovhCX0Gq//UWbO9501vl/YeUcWw30U9/hYjF:GsUOGtePWw30q6F

Score

10^/10

lumma stealc stok discovery evasion spyware stealer trojan

Malware Config

Extracted

Family

lumma

Extracted

Family

stealc

Botnet

stok

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	XW2UXCYYQR8PMU243GIMB8S.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	XW2UXCYYQR8PMU243GIMB8S.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	XW2UXCYYQR8PMU243GIMB8S.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	XW2UXCYYQR8PMU243GIMB8S.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	XW2UXCYYQR8PMU243GIMB8S.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	XW2UXCYYQR8PMU243GIMB8S.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__	81cfbdcd567c50d28a6380910dd6cf83.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	XW2UXCYYQR8PMU243GIMB8S.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7F82PNIV6VO5534SFDGZO437IV.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	XW2UXCYYQR8PMU243GIMB8S.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	XW2UXCYYQR8PMU243GIMB8S.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7F82PNIV6VO5534SFDGZO437IV.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7F82PNIV6VO5534SFDGZO437IV.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	81cfbdcd567c50d28a6380910dd6cf83.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	81cfbdcd567c50d28a6380910dd6cf83.exe

Executes dropped EXE 2 IoCs

pid	Process
2628	XW2UXCYYQR8PMU243GIMB8S.exe
4496	7F82PNIV6VO5534SFDGZO437IV.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-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	81cfbdcd567c50d28a6380910dd6cf83.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	XW2UXCYYQR8PMU243GIMB8S.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	7F82PNIV6VO5534SFDGZO437IV.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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	XW2UXCYYQR8PMU243GIMB8S.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	XW2UXCYYQR8PMU243GIMB8S.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
2124	81cfbdcd567c50d28a6380910dd6cf83.exe
2628	XW2UXCYYQR8PMU243GIMB8S.exe
4496	7F82PNIV6VO5534SFDGZO437IV.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	81cfbdcd567c50d28a6380910dd6cf83.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XW2UXCYYQR8PMU243GIMB8S.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7F82PNIV6VO5534SFDGZO437IV.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2124	81cfbdcd567c50d28a6380910dd6cf83.exe
2124	81cfbdcd567c50d28a6380910dd6cf83.exe
2124	81cfbdcd567c50d28a6380910dd6cf83.exe
2124	81cfbdcd567c50d28a6380910dd6cf83.exe
2124	81cfbdcd567c50d28a6380910dd6cf83.exe
2124	81cfbdcd567c50d28a6380910dd6cf83.exe
2628	XW2UXCYYQR8PMU243GIMB8S.exe
2628	XW2UXCYYQR8PMU243GIMB8S.exe
2628	XW2UXCYYQR8PMU243GIMB8S.exe
2628	XW2UXCYYQR8PMU243GIMB8S.exe
4496	7F82PNIV6VO5534SFDGZO437IV.exe
4496	7F82PNIV6VO5534SFDGZO437IV.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	XW2UXCYYQR8PMU243GIMB8S.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2628	2124	81cfbdcd567c50d28a6380910dd6cf83.exe	91
PID 2124 wrote to memory of 2628	2124	81cfbdcd567c50d28a6380910dd6cf83.exe	91
PID 2124 wrote to memory of 2628	2124	81cfbdcd567c50d28a6380910dd6cf83.exe	91
PID 2124 wrote to memory of 4496	2124	81cfbdcd567c50d28a6380910dd6cf83.exe	94
PID 2124 wrote to memory of 4496	2124	81cfbdcd567c50d28a6380910dd6cf83.exe	94
PID 2124 wrote to memory of 4496	2124	81cfbdcd567c50d28a6380910dd6cf83.exe	94

C:\Users\Admin\AppData\Local\Temp\81cfbdcd567c50d28a6380910dd6cf83.exe
"C:\Users\Admin\AppData\Local\Temp\81cfbdcd567c50d28a6380910dd6cf83.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\XW2UXCYYQR8PMU243GIMB8S.exe
  "C:\Users\Admin\AppData\Local\Temp\XW2UXCYYQR8PMU243GIMB8S.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:2628
- C:\Users\Admin\AppData\Local\Temp\7F82PNIV6VO5534SFDGZO437IV.exe
  "C:\Users\Admin\AppData\Local\Temp\7F82PNIV6VO5534SFDGZO437IV.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:4496

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\7F82PNIV6VO5534SFDGZO437IV.exe

Filesize
2.7MB

MD5
696ee1c9d08773339efe314269dcf7f5

SHA1
21bfb4fcb39ccc3969a0d07cf743b113d64a1c63

SHA256
57014fe84559fa166db76f925753b65e9b18fc6e175e7c6900b67b4487e6c519

SHA512
eb7b0ca0510d332c123c2cdd998e7c8af22f1922ff5f1f8075c8774a93e46268e7965d9ec763f45ad8cd70a0e649dd3041338c2638792a9552590f3922463e14

Download Submit
C:\Users\Admin\AppData\Local\Temp\XW2UXCYYQR8PMU243GIMB8S.exe

Filesize
1.7MB

MD5
9dfbaebce6e517991f34b94c67a038e2

SHA1
82fc1e85fe38a59248fc43837a6f0d32f3f0c0be

SHA256
1b625c9923c41449ed1fdce417c57890367204340c2236b4b2f44ca864ae14ad

SHA512
dd88abb1f9d0b0fd441e9333b64a88c5f66fb40c8f1ca8c98e4d04299e970410ddc49b60eadfbe7b76a74ef0a4d39cca270d4364d9d83ab66e777ca44257d4d4

Download Submit
memory/2124-14-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2124-15-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2124-4-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2124-5-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2124-6-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2124-2-0x0000000000111000-0x0000000000136000-memory.dmp

Filesize
148KB

Download
memory/2124-20-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2124-1-0x0000000076F44000-0x0000000076F46000-memory.dmp

Filesize
8KB

Download
memory/2124-0-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2124-3-0x0000000000110000-0x0000000000596000-memory.dmp

Filesize
4.5MB

Download
memory/2628-13-0x0000000000200000-0x0000000000654000-memory.dmp

Filesize
4.3MB

Download
memory/2628-12-0x0000000000200000-0x0000000000654000-memory.dmp

Filesize
4.3MB

Download
memory/2628-11-0x0000000000200000-0x0000000000654000-memory.dmp

Filesize
4.3MB

Download
memory/2628-23-0x0000000000200000-0x0000000000654000-memory.dmp

Filesize
4.3MB

Download
memory/2628-27-0x0000000000200000-0x0000000000654000-memory.dmp

Filesize
4.3MB

Download
memory/4496-21-0x00000000005C0000-0x0000000000AB3000-memory.dmp

Filesize
4.9MB

Download
memory/4496-22-0x00000000005C0000-0x0000000000AB3000-memory.dmp

Filesize
4.9MB

Download