lumma | b9f126c04bb56be08519685eb906a650027fc68931015b7202e09373766155ea

General

Target

aaaa.ps1
Size

451B
MD5

9a6ccc9afb164bff29d969bb8e6b5624
SHA1

79e602dee0b7a411e5db13739b43fae1ac2c0dd3
SHA256

b9f126c04bb56be08519685eb906a650027fc68931015b7202e09373766155ea
SHA512

03faa5b073947f90fbba90f2292537442dc91b89c9778c3cc4ee81c5e7cc5b662558c6b30284f7fbc16ea8af7ec80ea6990b4f22f5f5620037a76789fbde11b6

Score

10^/10

lumma discovery execution stealer

Malware Config

Extracted

Family

lumma

C2

https://stopruthless.cyou/api

Signatures

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

Blocklisted process makes network request 7 IoCs

flow	pid	Process
4	4452	powershell.exe
34	3984	msiexec.exe
37	3984	msiexec.exe
40	3984	msiexec.exe
46	3984	msiexec.exe
50	3984	msiexec.exe
53	3984	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
4120	222.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4120 set thread context of 4772	4120	222.exe	97

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4452	powershell.exe

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	more.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4452	powershell.exe
4452	powershell.exe
4120	222.exe
4120	222.exe
4772	more.com
4772	more.com

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4120	222.exe
4772	more.com

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4452	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4120	222.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 4120	4452	powershell.exe	96
PID 4452 wrote to memory of 4120	4452	powershell.exe	96
PID 4120 wrote to memory of 4772	4120	222.exe	97
PID 4120 wrote to memory of 4772	4120	222.exe	97
PID 4120 wrote to memory of 4772	4120	222.exe	97
PID 4120 wrote to memory of 4772	4120	222.exe	97
PID 4772 wrote to memory of 3984	4772	more.com	102
PID 4772 wrote to memory of 3984	4772	more.com	102
PID 4772 wrote to memory of 3984	4772	more.com	102
PID 4772 wrote to memory of 3984	4772	more.com	102
PID 4772 wrote to memory of 3984	4772	more.com	102

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\aaaa.ps1
1⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Users\Admin\AppData\Roaming\Extracted1\222.exe
  "C:\Users\Admin\AppData\Roaming\Extracted1\222.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4120
- - C:\Windows\SysWOW64\more.com
    C:\Windows\SysWOW64\more.com
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4772
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\SysWOW64\msiexec.exe
      4⤵
      Blocklisted process makes network request
      System Location Discovery: System Language Discovery
      PID:3984

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\481f34ec

Filesize
1.2MB

MD5
5a75f659ffc75a302f528fe7081777ad

SHA1
88bd1061283e27f2c9dfa059c724f741e92a05a4

SHA256
6c2ed09d1333bab38fa4380b22ecb5149b3dd361b694217402264b121c4cf7f8

SHA512
fdf08ed9a66d2c01f9b998477ec416c7000afc777826b0ea022f62bc521a53b1f09f724b0def1f2347a5d3a4c4d5229fdeaef35bccc44176c162e46dbfe858d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\4eae9522

Filesize
1022KB

MD5
e3a8dbb1a1e8b5c54f3f87fa4f812990

SHA1
4c0c049e3c6c24c492d72d6ca812ae56d4ede157

SHA256
6420a8e5dfa7b8237d911a5cf7c34879a7be424db3579775ef48c4a7bfabd708

SHA512
fdafd52ae2c9d74e67b64092822cdb12735dafca56965f4ddd16accbb5ca9ed17c984b459579ca4174365203275db6d0e9eaf9c33d58fae51f71a903742861dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mkfvhhns.tht.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Extracted1\222.exe

Filesize
11.0MB

MD5
b3450f42aa8c6ed0aaca0be210da8d0a

SHA1
eeeaea9f807d1c99bc41f6600fe7b7acda8de22d

SHA256
bbceb39ab4cd6bdcb75169c0010a72be880f071728c270f31e22ab7cf28adf2b

SHA512
00749482865dca1429d6fbfea7642d89432d617e6523c3f1c70c9e23434b74452a775c38b0581f767575593b2f35a0385fbd12b2f0cbfd324bddd9494be054ae

Download Submit
memory/3984-60-0x0000000000C00000-0x0000000000C5B000-memory.dmp

Filesize
364KB

Download
memory/3984-58-0x0000000000C00000-0x0000000000C5B000-memory.dmp

Filesize
364KB

Download
memory/3984-59-0x00007FFC4E310000-0x00007FFC4E505000-memory.dmp

Filesize
2.0MB

Download
memory/3984-61-0x00000000007E0000-0x00000000007F2000-memory.dmp

Filesize
72KB

Download
memory/4120-48-0x00007FFC3EAF0000-0x00007FFC3EC62000-memory.dmp

Filesize
1.4MB

Download
memory/4120-47-0x0000000003320000-0x0000000003321000-memory.dmp

Filesize
4KB

Download
memory/4120-45-0x00007FFC3EB09000-0x00007FFC3EB0A000-memory.dmp

Filesize
4KB

Download
memory/4120-44-0x00007FFC3EAF0000-0x00007FFC3EC62000-memory.dmp

Filesize
1.4MB

Download
memory/4120-36-0x0000000003320000-0x0000000003321000-memory.dmp

Filesize
4KB

Download
memory/4120-46-0x00007FFC3EAF0000-0x00007FFC3EC62000-memory.dmp

Filesize
1.4MB

Download
memory/4120-38-0x0000000000C20000-0x0000000001588000-memory.dmp

Filesize
9.4MB

Download
memory/4452-14-0x00007FFC30343000-0x00007FFC30345000-memory.dmp

Filesize
8KB

Download
memory/4452-37-0x00007FFC30340000-0x00007FFC30E01000-memory.dmp

Filesize
10.8MB

Download
memory/4452-18-0x0000029C6DED0000-0x0000029C6DEE2000-memory.dmp

Filesize
72KB

Download
memory/4452-17-0x0000029C6DEA0000-0x0000029C6DEAA000-memory.dmp

Filesize
40KB

Download
memory/4452-15-0x00007FFC30340000-0x00007FFC30E01000-memory.dmp

Filesize
10.8MB

Download
memory/4452-0-0x00007FFC30343000-0x00007FFC30345000-memory.dmp

Filesize
8KB

Download
memory/4452-13-0x00007FFC30340000-0x00007FFC30E01000-memory.dmp

Filesize
10.8MB

Download
memory/4452-12-0x00007FFC30340000-0x00007FFC30E01000-memory.dmp

Filesize
10.8MB

Download
memory/4452-11-0x00007FFC30340000-0x00007FFC30E01000-memory.dmp

Filesize
10.8MB

Download
memory/4452-1-0x0000029C6DD10000-0x0000029C6DD32000-memory.dmp

Filesize
136KB

Download
memory/4772-53-0x00007FFC4E310000-0x00007FFC4E505000-memory.dmp

Filesize
2.0MB

Download
memory/4772-54-0x0000000074FD0000-0x000000007514B000-memory.dmp

Filesize
1.5MB

Download

Analysis

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