mimikatz | f4b1375ac6cbdb10a0c7b39c4a5165eda8233e4eb858a3b79b14053f701f4aed

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 14:17

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General

Target

4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe
Size

390KB
MD5

8c64181ff0dc12c87e443aae94bf6650
SHA1

e91d7ebd17912785caa3e71ef1571dc01b1cd854
SHA256

4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5
SHA512

4854565b054297dffc13b659a53059ee8731dca02f3027501254551cb4af20b68fb121d03e528151cf910238b49bf00a3827e74e4bb68faf85ebc50d02ad5c17
SSDEEP

12288:ef/X4NTn/xVkNG+w+9OqFoK323qdQYKU3:EXATn/xVkNg+95vdQa

Score

10^/10

mimikatz bootkit persistence spyware stealer

Malware Config

Signatures

Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz

mimikatz is an open source tool to dump credentials on Windows 1 IoCs

resource	yara_rule
behavioral1/files/0x002d000000016cd2-20.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
2484	95E9.tmp

Loads dropped DLL 3 IoCs

pid	Process
2208	rundll32.exe
2208	rundll32.exe
2124	Process not Found

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32Info.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\ENU\Dynamic.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SIGN.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKDEC.CFG	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\classfile_constants.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javacpl.exe	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\ENU\SignHere.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\OOFTMPL.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Dataset.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\apt.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\Adobe\Updater6\Adobe_Updater.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REPORT.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SELFCERT.EXE	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmiregistry.exe	rundll32.exe
File opened for modification	C:\Program Files\Windows Media Player\wmlaunch.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\AppConfigurationInternal.zip	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\eula.rtf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\deploy\ffjcext.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861261279.profile.gz	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CNFRES.CFG	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\mip.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\win32\jawt_md.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\klist.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861258748.profile.gz	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\ink\TabTip32.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\appletviewer.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\schemagen.exe	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{A460FDBD-01C6-4800-8EDB-C87720E1D9B6}\chrome_installer.exe	rundll32.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe	rundll32.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmid.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.XLS	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\ResourceInternal.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\bin\tnameserv.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\POSTIT.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OSPP.VBS	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Form.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\UserControl.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.c	rundll32.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	rundll32.exe
File opened for modification	C:\Program Files\Windows Sidebar\sidebar.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\EQUATION\EQNEDT32.EXE	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.PPT	rundll32.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\bin\java.exe	rundll32.exe
File opened for modification	C:\Program Files\Windows Media Player\wmpenc.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CLVIEW.EXE	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\misc.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\MSInfo\msinfo32.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Interface.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\jni.h	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\DISTLIST.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	rundll32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\dllhost.dat	rundll32.exe
File created	C:\Windows\dllcm.dat	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe
File opened for modification	C:\Windows\dllcm.dat	rundll32.exe
File created	C:\Windows\dllcm	rundll32.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2636	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2208	rundll32.exe
2484	95E9.tmp
2484	95E9.tmp
2484	95E9.tmp
2484	95E9.tmp
2484	95E9.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2208	rundll32.exe
Token: SeDebugPrivilege	2208	rundll32.exe
Token: SeTcbPrivilege	2208	rundll32.exe
Token: SeDebugPrivilege	2484	95E9.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 2208	1684	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	28
PID 1684 wrote to memory of 2208	1684	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	28
PID 1684 wrote to memory of 2208	1684	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	28
PID 1684 wrote to memory of 2208	1684	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	28
PID 1684 wrote to memory of 2208	1684	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	28
PID 1684 wrote to memory of 2208	1684	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	28
PID 1684 wrote to memory of 2208	1684	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	28
PID 2208 wrote to memory of 2576	2208	rundll32.exe	29
PID 2208 wrote to memory of 2576	2208	rundll32.exe	29
PID 2208 wrote to memory of 2576	2208	rundll32.exe	29
PID 2208 wrote to memory of 2576	2208	rundll32.exe	29
PID 2208 wrote to memory of 2484	2208	rundll32.exe	31
PID 2208 wrote to memory of 2484	2208	rundll32.exe	31
PID 2208 wrote to memory of 2484	2208	rundll32.exe	31
PID 2208 wrote to memory of 2484	2208	rundll32.exe	31
PID 2576 wrote to memory of 2636	2576	cmd.exe	33
PID 2576 wrote to memory of 2636	2576	cmd.exe	33
PID 2576 wrote to memory of 2636	2576	cmd.exe	33
PID 2576 wrote to memory of 2636	2576	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe
"C:\Users\Admin\AppData\Local\Temp\4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\Windows\dllcm.dat #1
  2⤵
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 15:21
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2576
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 15:21
      4⤵
      Creates scheduled task(s)
      PID:2636
- - C:\Users\Admin\AppData\Local\Temp\95E9.tmp
    "C:\Users\Admin\AppData\Local\Temp\95E9.tmp" \\.\pipe\{0A1560B9-E7C6-449D-9A3E-A349EB19019F}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\95E9.tmp

Filesize
55KB

MD5
7e37ab34ecdcc3e77e24522ddfd4852d

SHA1
38e2855e11e353cedf9a8a4f2f2747f1c5c07fcf

SHA256
02ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f

SHA512
1b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587

Download Submit
C:\Windows\dllcm.dat

Filesize
353KB

MD5
7c0747971df2d07ceca15f0edc0a9f6e

SHA1
4db833ba4ddf88c36d6956928721547e1e221c0d

SHA256
4dd22017d6f77573cc0f4999d22b45f1d71e6435350d4a5654ee1e93fec30827

SHA512
d5da33a23fa39441901b9f4cc08468692d076545ffd29c082982fde7e93bb27464445478a37629a47d56594fd019863a1de52573c47ccf8d2252eb2047f8606e

Download Submit
memory/2208-2-0x0000000001F90000-0x0000000001FEE000-memory.dmp

Filesize
376KB

Download
memory/2208-10-0x0000000001F90000-0x0000000001FEE000-memory.dmp

Filesize
376KB

Download
memory/2208-11-0x0000000001F90000-0x0000000001FEE000-memory.dmp

Filesize
376KB

Download
memory/2208-13-0x0000000001F90000-0x0000000001FEE000-memory.dmp

Filesize
376KB

Download
memory/2208-24-0x0000000001F90000-0x0000000001FEE000-memory.dmp

Filesize
376KB

Download