mimikatz | 4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 16:33

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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 discovery 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

Processes:

resource	yara_rule
behavioral1/files/0x001200000001626d-17.dat	mimikatz

Executes dropped EXE 1 IoCs

Processes:

8112.tmp

pid	Process
2932	8112.tmp

Loads dropped DLL 3 IoCs

Processes:

rundll32.exe

pid	Process
2732	rundll32.exe
2732	rundll32.exe
2768

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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

Processes:

rundll32.exe

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

Drops file in Program Files directory 64 IoCs

Processes:

rundll32.exe

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jmap.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\Windows Media Player\WMPSideShowGadget.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Explorer.zip	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\FlickLearningWizard.exe	rundll32.exe
File opened for modification	C:\Program Files\ConvertFromUnprotect.rar	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SMIMEE.CFG	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\java-rmi.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-1033-7B44-A90000000001}\Setup.exe	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 (x86)\Windows Media Player\WMPDMC.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)\Microsoft Office\Office14\FORMS\1033\REPLTMPL.CFG	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgePackages.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\bin\policytool.exe	rundll32.exe
File opened for modification	C:\Program Files\Windows Media Player\WMPDMC.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\DW\DW20.EXE	rundll32.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javap.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\etc\visualvm.conf	rundll32.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\PDFSigQFormalRep.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\RCLRPT.CFG	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jmc.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstatd.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\LICLUA.EXE	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\XmlFile.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\SplashScreen.zip	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ShapeCollector.exe	rundll32.exe
File opened for modification	C:\Program Files\Windows Mail\WinMail.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaws.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Icons\SC_Reader.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDRESN.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SECREC.CFG	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\bin\jsadebugd.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVE.EXE	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\UserControl.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\keytool.exe	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\FreeCell.exe	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\ink\mip.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OfficeSoftwareProtectionPlatform\OSPPREARM.EXE	rundll32.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\ieinstal.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java-rmi.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKUPD.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)\Common Files\microsoft shared\OFFICE14\MSOICONS.EXE	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\Java\jre7\bin\java-rmi.exe	rundll32.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	rundll32.exe
File opened for modification	C:\Program Files\Windows Media Player\wmpnetwk.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\ODeploy.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.XLS	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CONTACT.CFG	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\iediagcmd.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\orbd.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\FLTLDR.EXE	rundll32.exe

Drops file in Windows directory 4 IoCs

Processes:

rundll32.exe4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe

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

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exerundll32.execmd.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
2684	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

rundll32.exe8112.tmp

pid	Process
2732	rundll32.exe
2932	8112.tmp
2932	8112.tmp
2932	8112.tmp
2932	8112.tmp
2932	8112.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

rundll32.exe8112.tmp

description	pid	Process
Token: SeShutdownPrivilege	2732	rundll32.exe
Token: SeDebugPrivilege	2732	rundll32.exe
Token: SeTcbPrivilege	2732	rundll32.exe
Token: SeDebugPrivilege	2932	8112.tmp

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exerundll32.execmd.exe

description	pid	Process	procid_target
PID 2272 wrote to memory of 2732	2272	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	30
PID 2272 wrote to memory of 2732	2272	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	30
PID 2272 wrote to memory of 2732	2272	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	30
PID 2272 wrote to memory of 2732	2272	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	30
PID 2272 wrote to memory of 2732	2272	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	30
PID 2272 wrote to memory of 2732	2272	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	30
PID 2272 wrote to memory of 2732	2272	4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe	30
PID 2732 wrote to memory of 2780	2732	rundll32.exe	31
PID 2732 wrote to memory of 2780	2732	rundll32.exe	31
PID 2732 wrote to memory of 2780	2732	rundll32.exe	31
PID 2732 wrote to memory of 2780	2732	rundll32.exe	31
PID 2732 wrote to memory of 2932	2732	rundll32.exe	33
PID 2732 wrote to memory of 2932	2732	rundll32.exe	33
PID 2732 wrote to memory of 2932	2732	rundll32.exe	33
PID 2732 wrote to memory of 2932	2732	rundll32.exe	33
PID 2780 wrote to memory of 2684	2780	cmd.exe	35
PID 2780 wrote to memory of 2684	2780	cmd.exe	35
PID 2780 wrote to memory of 2684	2780	cmd.exe	35
PID 2780 wrote to memory of 2684	2780	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe
"C:\Users\Admin\AppData\Local\Temp\4c0153b979e65346c1d6f863086082ec5ef103cbf6b0f5e8652d61da678a8ca5.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 17:36
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2780
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 17:36
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2684
- - C:\Users\Admin\AppData\Local\Temp\8112.tmp
    "C:\Users\Admin\AppData\Local\Temp\8112.tmp" \\.\pipe\{90D59715-BFD6-4F79-89B6-46BF6550D175}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\dllcm.dat

Filesize
353KB

MD5
7c0747971df2d07ceca15f0edc0a9f6e

SHA1
4db833ba4ddf88c36d6956928721547e1e221c0d

SHA256
4dd22017d6f77573cc0f4999d22b45f1d71e6435350d4a5654ee1e93fec30827

SHA512
d5da33a23fa39441901b9f4cc08468692d076545ffd29c082982fde7e93bb27464445478a37629a47d56594fd019863a1de52573c47ccf8d2252eb2047f8606e

Download Submit
\Users\Admin\AppData\Local\Temp\8112.tmp

Filesize
55KB

MD5
7e37ab34ecdcc3e77e24522ddfd4852d

SHA1
38e2855e11e353cedf9a8a4f2f2747f1c5c07fcf

SHA256
02ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f

SHA512
1b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587

Download Submit
memory/2732-2-0x0000000000300000-0x000000000035E000-memory.dmp

Filesize
376KB

Download
memory/2732-10-0x0000000000300000-0x000000000035E000-memory.dmp

Filesize
376KB

Download
memory/2732-13-0x0000000000300000-0x000000000035E000-memory.dmp

Filesize
376KB

Download
memory/2732-11-0x0000000000300000-0x000000000035E000-memory.dmp

Filesize
376KB

Download
memory/2732-28-0x0000000000300000-0x000000000035E000-memory.dmp

Filesize
376KB

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