mimikatz | 1713bce457cbe0b1c8a5a98c6cc86424ea967402af33860cbf0b42ae7a4f9059

Analysis

max time kernel
59s
max time network
61s
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, 04:59

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General

Target

ayonigga.cmd
Size

48B
MD5

c7160c2ed09e3b877a142cf616e2fee6
SHA1

c99fb4a8d35306e7902c555dcf5d80297aab8877
SHA256

0819669bf33c67865f28ef7a505ddc21a6a428f81be2631cbab9a67b3b0ada7f
SHA512

e85147f4389786214c658f1e44c4eac8fb4a7def14ee2769b9f32067fa6ad2f1cbaea2abe28ad12e849694fa3c8f4aba994969d670edeca86c4654b15295ff75

Score

10^/10

mimikatz bootkit discovery persistence spyware stealer upx

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/0x001a00000002ab04-20.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
4240	9A4C.tmp

Loads dropped DLL 1 IoCs

pid	Process
388	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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/4488-0-0x00007FF7CC8C0000-0x00007FF7CDB82000-memory.dmp	upx

Drops file in Program Files directory 55 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre-1.8\lib\amd64\jvm.cfg	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\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Web Server Extensions\16\BIN\1033\FPEXT.MSG	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 (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\Java\jdk-1.8\include\win32\bridge\AccessBridgeCallbacks.h	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\sample-files\assets\Sample Files\Adobe Acrobat Pro DC.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\Microsoft Office\root\Office16\1033\PROTTPLV.PPT	rundll32.exe
File opened for modification	C:\Program Files\UnblockPing.docx	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 (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\Java\jdk-1.8\include\jawt.h	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\on-boarding\images\themeless\HomeBanner_Light.pdf	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\Google\Chrome\Application\123.0.6312.123\Installer\chrome.7z	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 (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\win32\bridge\AccessBridgeCalls.c	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\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\MobileScanCard_Light.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\Java\jdk-1.8\include\jvmti.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\Microsoft Office\root\vfs\Windows\SHELLNEW\EXCEL12.XLSX	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\jni_md.h	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 (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Annotations\Stamps\ENU\StandardBusiness.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\EditRevoke.zip	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\Microsoft Office\root\Office16\1033\PROTTPLV.DOC	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\UpdateLock.asp	rundll32.exe
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\plug_ins\Annotations\Stamps\Words.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\Java\jdk-1.8\include\jni.h	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\PDFSigQFormalRep.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\Java\jdk-1.8\include\jdwpTransport.h	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\Java\jdk-1.8\include\win32\jawt_md.h	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\Mozilla Firefox\firefox.cfg	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
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 (x86)\Adobe\Acrobat Reader DC\Reader\Welcome.pdf	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\IDTemplates\ENU\DefaultID.pdf	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPP.VBS	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
2980	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
1288	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
388	rundll32.exe
388	rundll32.exe
4240	9A4C.tmp
4240	9A4C.tmp
4240	9A4C.tmp
4240	9A4C.tmp
4240	9A4C.tmp
4240	9A4C.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	388	rundll32.exe
Token: SeDebugPrivilege	388	rundll32.exe
Token: SeTcbPrivilege	388	rundll32.exe
Token: SeDebugPrivilege	4240	9A4C.tmp

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 4488	4920	cmd.exe	78
PID 4920 wrote to memory of 4488	4920	cmd.exe	78
PID 4920 wrote to memory of 2980	4920	cmd.exe	79
PID 4920 wrote to memory of 2980	4920	cmd.exe	79
PID 4920 wrote to memory of 912	4920	cmd.exe	80
PID 4920 wrote to memory of 912	4920	cmd.exe	80
PID 4920 wrote to memory of 912	4920	cmd.exe	80
PID 912 wrote to memory of 388	912	Ransomware.NotPetya.exe	81
PID 912 wrote to memory of 388	912	Ransomware.NotPetya.exe	81
PID 912 wrote to memory of 388	912	Ransomware.NotPetya.exe	81
PID 388 wrote to memory of 3324	388	rundll32.exe	82
PID 388 wrote to memory of 3324	388	rundll32.exe	82
PID 388 wrote to memory of 3324	388	rundll32.exe	82
PID 388 wrote to memory of 4240	388	rundll32.exe	83
PID 388 wrote to memory of 4240	388	rundll32.exe	83
PID 3324 wrote to memory of 1288	3324	cmd.exe	86
PID 3324 wrote to memory of 1288	3324	cmd.exe	86
PID 3324 wrote to memory of 1288	3324	cmd.exe	86

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:4920
- C:\Users\Admin\AppData\Local\Temp\whtat.exe
  whtat.exe
  2⤵
  PID:4488
- C:\Windows\system32\timeout.exe
  timeout /t 2
  2⤵
  - Delays execution with timeout.exe
  PID:2980
- 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:912
- - 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:388
  - - C:\Windows\SysWOW64\cmd.exe
      /c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 05:62
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3324
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 05:62
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1288
  - - C:\Users\Admin\AppData\Local\Temp\9A4C.tmp
      "C:\Users\Admin\AppData\Local\Temp\9A4C.tmp" \\.\pipe\{D759CAD9-72FF-4215-88AF-01C154B0C28E}
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4240

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\9A4C.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/388-7-0x0000000002A00000-0x0000000002A5E000-memory.dmp

Filesize
376KB

Download
memory/388-14-0x0000000002A00000-0x0000000002A5E000-memory.dmp

Filesize
376KB

Download
memory/388-15-0x0000000002A00000-0x0000000002A5E000-memory.dmp

Filesize
376KB

Download
memory/388-16-0x0000000002A00000-0x0000000002A5E000-memory.dmp

Filesize
376KB

Download
memory/388-28-0x0000000002A00000-0x0000000002A5E000-memory.dmp

Filesize
376KB

Download
memory/912-1-0x0000000000FE0000-0x000000000103F000-memory.dmp

Filesize
380KB

Download
memory/912-3-0x0000000000FE0000-0x000000000103F000-memory.dmp

Filesize
380KB

Download
memory/4488-0-0x00007FF7CC8C0000-0x00007FF7CDB82000-memory.dmp

Filesize
18.8MB

Download
memory/4488-34-0x00007FF7CC8C0000-0x00007FF7CDB82000-memory.dmp

Filesize
18.8MB

Download