lumma | ff2fce8e75f0f7261ddef3a3785943cc97623edb1e632ed935c8619f2adc7325

General

Target

Bootstrapper.exe
Size

104KB
MD5

4602690571ce74ace4458896a31ce202
SHA1

5478b08a3a6c8c6762a4628d5a66a32a573c7771
SHA256

ff2fce8e75f0f7261ddef3a3785943cc97623edb1e632ed935c8619f2adc7325
SHA512

0c4fbfea7274eb799cfe6a3a8aec81f011182f3077da6778b1e3ea1c71917639198fde8e2662411894ea788686c3f53c7e2b68c00e2e7d1d2b3f112ceac189b7
SSDEEP

3072:YuElCyYwC+M2FE6CyYwC+M2FE+80IZOAr:YZlhY7X2K6hY7X2K+h

Score

10^/10

lumma discovery execution stealer

Malware Config

Extracted

Family

lumma

C2

https://tenseddrywsqio.shop/api

Signatures

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

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1104	704	powershell.exe	88
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1688	704	powershell.exe	88
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	844	704	powershell.exe	88

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1104	powershell.exe
1688	powershell.exe
844	powershell.exe

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	Bootstrapper.exe

Executes dropped EXE 1 IoCs

pid	Process
1904	herasf.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
18	raw.githubusercontent.com
19	raw.githubusercontent.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1904	herasf.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3500	1904	WerFault.exe	97
3960	1904	WerFault.exe	97

System Location Discovery: System Language Discovery 1 TTPs 2 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	Bootstrapper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	herasf.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1688	powershell.exe
1104	powershell.exe
844	powershell.exe
1104	powershell.exe
844	powershell.exe
1688	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1688	powershell.exe
Token: SeDebugPrivilege	1104	powershell.exe
Token: SeDebugPrivilege	844	powershell.exe
Token: SeDebugPrivilege	1532	Bootstrapper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1904	herasf.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 1904	1532	Bootstrapper.exe	97
PID 1532 wrote to memory of 1904	1532	Bootstrapper.exe	97
PID 1532 wrote to memory of 1904	1532	Bootstrapper.exe	97

C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Resourse\herasf.exe
  "C:\Resourse\herasf.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1904
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 1500
    3⤵
    - Program crash
    PID:3960
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 1460
    3⤵
    - Program crash
    PID:3500

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -Command "Add-MpPreference -ExclusionPath 'C:\Resourse'"
1⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1104

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\Desktop'"
1⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1688

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
1⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1904 -ip 1904
1⤵
PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1904 -ip 1904
1⤵
PID:4040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Resourse\herasf.exe

Filesize
1.2MB

MD5
e27eafded26de61f55941d55a23b0234

SHA1
db7c9d0e3228ed2111ac8113d10891fcf258e5be

SHA256
25474a5d32985adc30f8ed8405648b2b500538906405a1ad7a23612864a5f6ba

SHA512
fefae9b8fd1e5015853af246bbb256eadf0bad95221980dbde476c56dbc8e6ae85273c894c946ea079c6524fef5f52607a8b1feb26f59e563e838cfb93c436f1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6c47b3f4e68eebd47e9332eebfd2dd4e

SHA1
67f0b143336d7db7b281ed3de5e877fa87261834

SHA256
8c48b1f2338e5b24094821f41121d2221f1cb3200338f46df49f64d1c4bc3e0c

SHA512
0acf302a9fc971ef9df65ed42c47ea17828e54dff685f4434f360556fd27cdc26a75069f00dcdc14ba174893c6fd7a2cfd8c6c07be3ce35dafee0a006914eaca

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_otnirsdc.2dz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1104-21-0x000001F79E0E0000-0x000001F79E102000-memory.dmp

Filesize
136KB

Download
memory/1532-5-0x0000000009AE0000-0x0000000009B18000-memory.dmp

Filesize
224KB

Download
memory/1532-3-0x0000000009770000-0x0000000009778000-memory.dmp

Filesize
32KB

Download
memory/1532-8-0x0000000005840000-0x00000000058A6000-memory.dmp

Filesize
408KB

Download
memory/1532-63-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/1532-59-0x000000000CB10000-0x000000000CBA2000-memory.dmp

Filesize
584KB

Download
memory/1532-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/1532-6-0x0000000009AC0000-0x0000000009ACE000-memory.dmp

Filesize
56KB

Download
memory/1532-1-0x0000000000750000-0x000000000076E000-memory.dmp

Filesize
120KB

Download
memory/1532-4-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/1532-7-0x000000000B780000-0x000000000BD24000-memory.dmp

Filesize
5.6MB

Download
memory/1532-2-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/1532-50-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/1532-48-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/1532-49-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/1688-47-0x00007FFFDE580000-0x00007FFFDF041000-memory.dmp

Filesize
10.8MB

Download
memory/1688-30-0x00007FFFDE580000-0x00007FFFDF041000-memory.dmp

Filesize
10.8MB

Download
memory/1688-10-0x00007FFFDE580000-0x00007FFFDF041000-memory.dmp

Filesize
10.8MB

Download
memory/1688-9-0x00007FFFDE583000-0x00007FFFDE585000-memory.dmp

Filesize
8KB

Download
memory/1904-58-0x00000000005E0000-0x000000000099C000-memory.dmp

Filesize
3.7MB

Download
memory/1904-61-0x00000000005E0000-0x000000000099C000-memory.dmp

Filesize
3.7MB

Download

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