mimikatz | 823f6586a8de88aa04e5518bd9aff97f64120b98d8d4757e31a8a13ed8b87713

Analysis

max time kernel
29s
max time network
30s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
28-11-2024 04:57

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General

Target

ayonigga.cmd
Size

49B
MD5

90602be76b3fbe3b0bcf32b4370bf188
SHA1

981fe308e897d3c716b38620fa643126d15b50ab
SHA256

10be821ccacea04571770af6dcc7281e1f8cde1b969092bee42ef2ea813c1bc9
SHA512

ac04ff0d43efb5a8291e823a8486763b071fcea355573ce9becd74f14954b2bd1c15d0fa564113dfe97f0a72726188bcd75c5883c654581020d40c0761ed820b

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 family
mimikatz

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

resource	yara_rule
behavioral1/files/0x001c00000002aa92-19.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
1844	7148.tmp

Loads dropped DLL 1 IoCs

pid	Process
4120	rundll32.exe

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

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

Drops file in Program Files directory 55 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\include\classfile_constants.h	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\PDFSigQFormalRep.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\ENU\StandardBusiness.pdf	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.PPT	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SAMPLES\SOLVSAMP.XLS	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\ENU\Dynamic.pdf	rundll32.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrome.7z	rundll32.exe
File opened for modification	C:\Program Files\Java\jre-1.8\lib\deploy\ffjcext.zip	rundll32.exe
File opened for modification	C:\Program Files\LimitDisable.asp	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\ENU\SignHere.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Adobe Cloud Services.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Adobe Acrobat Pro DC.pdf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCalls.c	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.PPT	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileAcrobatCard_Light.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\1494870C-9912-C184-4CC9-B401-A53F4D8DE290.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\IDTemplates\ENU\AdobeID.pdf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgePackages.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\win32\jawt_md.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jre-1.8\lib\amd64\jvm.cfg	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Web Server Extensions\16\BIN\1033\FPEXT.MSG	rundll32.exe
File opened for modification	C:\Program Files\OutSave.vsdx	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\jdwpTransport.h	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPP.VBS	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\Words.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Bus Schedule.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Welcome.pdf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCalls.h	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.XLS	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\HomeBanner_Dark.pdf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\jvmti.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\win32\jni_md.h	rundll32.exe
File opened for modification	C:\Program Files\EditExpand.xls	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\HomeBanner_Light.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Complex Machine.pdf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\jawt.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\jni.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\jvmticmlr.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCallbacks.h	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\Windows\SHELLNEW\EXCEL12.XLSX	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\ffjcext.zip	rundll32.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.cfg	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\Oracle\Java\java.settings.cfg	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.XLS	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileAcrobatCard_Dark.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Adobe Sign White Paper.pdf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\lib\amd64\jvm.cfg	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileScanCard_Dark.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileScanCard_Light.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\IDTemplates\ENU\DefaultID.pdf	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\ENUtxt.pdf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\javafx-src.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Click on 'Change' to select default PDF handler.pdf	rundll32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\perfc.dat	Ransomware.NotPetya.exe
File opened for modification	C:\Windows\perfc.dat	rundll32.exe
File created	C:\Windows\perfc	rundll32.exe
File created	C:\Windows\dllhost.dat	rundll32.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ransomware.NotPetya.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4376	timeout.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

pid	Process
4460	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4120	rundll32.exe
4120	rundll32.exe
1844	7148.tmp
1844	7148.tmp
1844	7148.tmp
1844	7148.tmp
1844	7148.tmp
1844	7148.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4120	rundll32.exe
Token: SeDebugPrivilege	4120	rundll32.exe
Token: SeTcbPrivilege	4120	rundll32.exe
Token: SeDebugPrivilege	1844	7148.tmp

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 4376	3996	cmd.exe	78
PID 3996 wrote to memory of 4376	3996	cmd.exe	78
PID 3996 wrote to memory of 3636	3996	cmd.exe	79
PID 3996 wrote to memory of 3636	3996	cmd.exe	79
PID 3996 wrote to memory of 3636	3996	cmd.exe	79
PID 3636 wrote to memory of 4120	3636	Ransomware.NotPetya.exe	80
PID 3636 wrote to memory of 4120	3636	Ransomware.NotPetya.exe	80
PID 3636 wrote to memory of 4120	3636	Ransomware.NotPetya.exe	80
PID 4120 wrote to memory of 1136	4120	rundll32.exe	81
PID 4120 wrote to memory of 1136	4120	rundll32.exe	81
PID 4120 wrote to memory of 1136	4120	rundll32.exe	81
PID 4120 wrote to memory of 1844	4120	rundll32.exe	82
PID 4120 wrote to memory of 1844	4120	rundll32.exe	82
PID 1136 wrote to memory of 4460	1136	cmd.exe	85
PID 1136 wrote to memory of 4460	1136	cmd.exe	85
PID 1136 wrote to memory of 4460	1136	cmd.exe	85

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\ayonigga.cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Windows\system32\timeout.exe
  timeout /t 2
  2⤵
  - Delays execution with timeout.exe
  PID:4376
- C:\Users\Admin\AppData\Local\Temp\Ransomware.NotPetya.exe
  Ransomware.NotPetya.exe
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3636
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe C:\Windows\perfc.dat,#1
    3⤵
    - 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:4120
  - - C:\Windows\SysWOW64\cmd.exe
      /c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 05:61
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1136
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 05:61
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:4460
  - - C:\Users\Admin\AppData\Local\Temp\7148.tmp
      "C:\Users\Admin\AppData\Local\Temp\7148.tmp" \\.\pipe\{E8F0D139-A070-42AF-B5C0-F71C2E8BB0D5}
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1844

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 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:\Users\Admin\AppData\Local\Temp\7148.tmp

Filesize
55KB

MD5
7e37ab34ecdcc3e77e24522ddfd4852d

SHA1
38e2855e11e353cedf9a8a4f2f2747f1c5c07fcf

SHA256
02ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f

SHA512
1b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587

Download Submit
C:\Windows\perfc.dat

Filesize
353KB

MD5
71b6a493388e7d0b40c83ce903bc6b04

SHA1
34f917aaba5684fbe56d3c57d48ef2a1aa7cf06d

SHA256
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745

SHA512
072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f

Download Submit
memory/3636-0-0x0000000000170000-0x00000000001CF000-memory.dmp

Filesize
380KB

Download
memory/3636-2-0x0000000000170000-0x00000000001CF000-memory.dmp

Filesize
380KB

Download
memory/4120-5-0x0000000002C10000-0x0000000002C6E000-memory.dmp

Filesize
376KB

Download
memory/4120-13-0x0000000002C10000-0x0000000002C6E000-memory.dmp

Filesize
376KB

Download
memory/4120-14-0x0000000002C10000-0x0000000002C6E000-memory.dmp

Filesize
376KB

Download
memory/4120-16-0x0000000002C10000-0x0000000002C6E000-memory.dmp

Filesize
376KB

Download
memory/4120-27-0x0000000002C10000-0x0000000002C6E000-memory.dmp

Filesize
376KB

Download