lumma | b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 14:53

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General

Target

b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
Size

1.7MB
MD5

4f6afde2bd74791f9ea1e3d296f30ddf
SHA1

90c461c881e033ad04dc851c88ed3b431205eea0
SHA256

b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012
SHA512

77706f89c121143364dd64f072263866dcbf10da5a2adfadc8c22d1b660031095cedc562cf5d08f35047ca8896958d897f49666e0aaf34caba65a7c15326891d
SSDEEP

49152:U7UDg3tafPzDwhEoxfmymH6xPXpF0edh4vw5bmrb6:mUJDYETp6xvdh4I5b

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\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	4WNFM25ZN02DCM5T6UI05.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	4WNFM25ZN02DCM5T6UI05.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	4WNFM25ZN02DCM5T6UI05.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	4WNFM25ZN02DCM5T6UI05.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	4WNFM25ZN02DCM5T6UI05.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	4WNFM25ZN02DCM5T6UI05.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__	16F7EY0Z3JP6HCS7IU3CRPQDF.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4WNFM25ZN02DCM5T6UI05.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	16F7EY0Z3JP6HCS7IU3CRPQDF.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	16F7EY0Z3JP6HCS7IU3CRPQDF.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4WNFM25ZN02DCM5T6UI05.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4WNFM25ZN02DCM5T6UI05.exe

Executes dropped EXE 2 IoCs

pid	Process
2648	4WNFM25ZN02DCM5T6UI05.exe
840	16F7EY0Z3JP6HCS7IU3CRPQDF.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	4WNFM25ZN02DCM5T6UI05.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	16F7EY0Z3JP6HCS7IU3CRPQDF.exe

Loads dropped DLL 4 IoCs

pid	Process
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.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"	4WNFM25ZN02DCM5T6UI05.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	4WNFM25ZN02DCM5T6UI05.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
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2648	4WNFM25ZN02DCM5T6UI05.exe
840	16F7EY0Z3JP6HCS7IU3CRPQDF.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	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4WNFM25ZN02DCM5T6UI05.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	16F7EY0Z3JP6HCS7IU3CRPQDF.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
2648	4WNFM25ZN02DCM5T6UI05.exe
2648	4WNFM25ZN02DCM5T6UI05.exe
2648	4WNFM25ZN02DCM5T6UI05.exe
840	16F7EY0Z3JP6HCS7IU3CRPQDF.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	4WNFM25ZN02DCM5T6UI05.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2648	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	32
PID 2236 wrote to memory of 2648	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	32
PID 2236 wrote to memory of 2648	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	32
PID 2236 wrote to memory of 2648	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	32
PID 2236 wrote to memory of 840	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	33
PID 2236 wrote to memory of 840	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	33
PID 2236 wrote to memory of 840	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	33
PID 2236 wrote to memory of 840	2236	b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe	33

C:\Users\Admin\AppData\Local\Temp\b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.exe
"C:\Users\Admin\AppData\Local\Temp\b8de92d5a5c7025ca71678bdd7ae4b8efd361ff07cd6ed2672bd96d8c4d04012.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:2236
- C:\Users\Admin\AppData\Local\Temp\4WNFM25ZN02DCM5T6UI05.exe
  "C:\Users\Admin\AppData\Local\Temp\4WNFM25ZN02DCM5T6UI05.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:2648
- C:\Users\Admin\AppData\Local\Temp\16F7EY0Z3JP6HCS7IU3CRPQDF.exe
  "C:\Users\Admin\AppData\Local\Temp\16F7EY0Z3JP6HCS7IU3CRPQDF.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:840

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

\Users\Admin\AppData\Local\Temp\16F7EY0Z3JP6HCS7IU3CRPQDF.exe

Filesize
2.7MB

MD5
e84367d8404d57c0ece3e82c8c98f087

SHA1
1a8e42a676c0b49827042c4b9bc5987bd2336d81

SHA256
84ef91b23431e2f6f35b4613316ea8a0f9ead5b704339f5c4d2df6d46d97bf3e

SHA512
14fd102d40922cb0152f52a107b047eba289cdbdad063c4f7d69d3abd4018144206bb0c90aba05cd57b08ad0ff099b314723d28152d941284a57f9eece9ee7bc

Download Submit
\Users\Admin\AppData\Local\Temp\4WNFM25ZN02DCM5T6UI05.exe

Filesize
1.7MB

MD5
2232b014ae8b1313bf45d61f44ae5f84

SHA1
dbe4283863bbab29da9b81af5cf743f909ac4491

SHA256
15289f051e9470aa08c921f594ceb9989952dbb0870c678e6a262cc0038a8dfb

SHA512
bbc05e0730a6f202b9d4048d827e03b34b29e098114d79d7f65630482111db2cd6baf5975209778fa097f038397989b4df7b3fae0a6146f7bd1c4701653ceb39

Download Submit
memory/840-38-0x0000000000810000-0x0000000000D04000-memory.dmp

Filesize
5.0MB

Download
memory/840-37-0x0000000000810000-0x0000000000D04000-memory.dmp

Filesize
5.0MB

Download
memory/2236-6-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-34-0x0000000006660000-0x0000000006B54000-memory.dmp

Filesize
5.0MB

Download
memory/2236-0-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-7-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-8-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-9-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-10-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-4-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-18-0x0000000006660000-0x0000000006AE6000-memory.dmp

Filesize
4.5MB

Download
memory/2236-1-0x0000000077000000-0x0000000077002000-memory.dmp

Filesize
8KB

Download
memory/2236-19-0x0000000006660000-0x0000000006AE6000-memory.dmp

Filesize
4.5MB

Download
memory/2236-33-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-5-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-3-0x0000000001210000-0x0000000001694000-memory.dmp

Filesize
4.5MB

Download
memory/2236-2-0x0000000001211000-0x0000000001236000-memory.dmp

Filesize
148KB

Download
memory/2236-36-0x0000000006660000-0x0000000006B54000-memory.dmp

Filesize
5.0MB

Download
memory/2648-23-0x0000000000FA0000-0x0000000001426000-memory.dmp

Filesize
4.5MB

Download
memory/2648-22-0x0000000000FA0000-0x0000000001426000-memory.dmp

Filesize
4.5MB

Download
memory/2648-21-0x0000000000FA0000-0x0000000001426000-memory.dmp

Filesize
4.5MB

Download
memory/2648-39-0x0000000000FA0000-0x0000000001426000-memory.dmp

Filesize
4.5MB

Download
memory/2648-42-0x0000000000FA0000-0x0000000001426000-memory.dmp

Filesize
4.5MB

Download