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	2228	powershell.exe
41	3668	msiexec.exe
44	3668	msiexec.exe
47	3668	msiexec.exe
51	3668	msiexec.exe
58	3668	msiexec.exe
61	3668	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
2360	222.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2360 set thread context of 4744	2360	222.exe	98

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2228	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	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	more.com

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2228	powershell.exe
2228	powershell.exe
2360	222.exe
2360	222.exe
4744	more.com
4744	more.com

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2360	222.exe
4744	more.com

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2360	222.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2360	2228	powershell.exe	97
PID 2228 wrote to memory of 2360	2228	powershell.exe	97
PID 2360 wrote to memory of 4744	2360	222.exe	98
PID 2360 wrote to memory of 4744	2360	222.exe	98
PID 2360 wrote to memory of 4744	2360	222.exe	98
PID 2360 wrote to memory of 4744	2360	222.exe	98
PID 4744 wrote to memory of 3668	4744	more.com	105
PID 4744 wrote to memory of 3668	4744	more.com	105
PID 4744 wrote to memory of 3668	4744	more.com	105
PID 4744 wrote to memory of 3668	4744	more.com	105
PID 4744 wrote to memory of 3668	4744	more.com	105

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:2228
- 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:2360
- - 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:4744
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\SysWOW64\msiexec.exe
      4⤵
      Blocklisted process makes network request
      System Location Discovery: System Language Discovery
      PID:3668

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\5e74dd9a

Filesize
1.2MB

MD5
5a75f659ffc75a302f528fe7081777ad

SHA1
88bd1061283e27f2c9dfa059c724f741e92a05a4

SHA256
6c2ed09d1333bab38fa4380b22ecb5149b3dd361b694217402264b121c4cf7f8

SHA512
fdf08ed9a66d2c01f9b998477ec416c7000afc777826b0ea022f62bc521a53b1f09f724b0def1f2347a5d3a4c4d5229fdeaef35bccc44176c162e46dbfe858d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\6c3ed78c

Filesize
1022KB

MD5
55364661a5503fc418b413fca45fbb73

SHA1
a4656fc310d435161ec67b04877ee4c8099ec934

SHA256
5b6de94e26ea986ac6f92f9de2ebf0f0f0e199141da64782388b18b645125acf

SHA512
07662049e10ad25af09f17a32151267f4c9e35f493509c1935c3317ef55b246094df94a16a86210ff9b505a73e56f8d6d4d9431f2d8cb526f468600586ec7966

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nhj0gu0l.3og.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/2228-14-0x00007FF9A1C03000-0x00007FF9A1C05000-memory.dmp

Filesize
8KB

Download
memory/2228-13-0x00007FF9A1C00000-0x00007FF9A26C1000-memory.dmp

Filesize
10.8MB

Download
memory/2228-12-0x00007FF9A1C00000-0x00007FF9A26C1000-memory.dmp

Filesize
10.8MB

Download
memory/2228-15-0x00007FF9A1C00000-0x00007FF9A26C1000-memory.dmp

Filesize
10.8MB

Download
memory/2228-17-0x0000024AED430000-0x0000024AED43A000-memory.dmp

Filesize
40KB

Download
memory/2228-18-0x0000024AEF980000-0x0000024AEF992000-memory.dmp

Filesize
72KB

Download
memory/2228-11-0x00007FF9A1C00000-0x00007FF9A26C1000-memory.dmp

Filesize
10.8MB

Download
memory/2228-36-0x00007FF9A1C00000-0x00007FF9A26C1000-memory.dmp

Filesize
10.8MB

Download
memory/2228-0-0x00007FF9A1C03000-0x00007FF9A1C05000-memory.dmp

Filesize
8KB

Download
memory/2228-1-0x0000024AECE70000-0x0000024AECE92000-memory.dmp

Filesize
136KB

Download
memory/2360-37-0x0000000001450000-0x0000000001451000-memory.dmp

Filesize
4KB

Download
memory/2360-44-0x00007FF9B16C0000-0x00007FF9B1832000-memory.dmp

Filesize
1.4MB

Download
memory/2360-45-0x00007FF9B16D9000-0x00007FF9B16DA000-memory.dmp

Filesize
4KB

Download
memory/2360-46-0x00007FF9B16C0000-0x00007FF9B1832000-memory.dmp

Filesize
1.4MB

Download
memory/2360-47-0x0000000001450000-0x0000000001451000-memory.dmp

Filesize
4KB

Download
memory/2360-48-0x00007FF9B16C0000-0x00007FF9B1832000-memory.dmp

Filesize
1.4MB

Download
memory/2360-38-0x0000000000560000-0x0000000000EC8000-memory.dmp

Filesize
9.4MB

Download
memory/3668-58-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/3668-59-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

Filesize
2.0MB

Download
memory/3668-61-0x0000000000180000-0x0000000000192000-memory.dmp

Filesize
72KB

Download
memory/3668-60-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4744-53-0x00007FF9C01D0000-0x00007FF9C03C5000-memory.dmp

Filesize
2.0MB

Download
memory/4744-54-0x00000000757D0000-0x000000007594B000-memory.dmp

Filesize
1.5MB

Download

Analysis

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