mimikatz | 34c1b41e19977bea70e481344bb22997847eea00e35c04f36ed4a81f8556a8db

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 18:49

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General

Target

JaffaCakes118_34c1b41e19977bea70e481344bb22997847eea00e35c04f36ed4a81f8556a8db.xls
Size

2.7MB
MD5

5a0d2e3b52fe4cf7d627c098d86f1557
SHA1

011aade7c013edc076e0b8c75d07c6362b797a43
SHA256

34c1b41e19977bea70e481344bb22997847eea00e35c04f36ed4a81f8556a8db
SHA512

8f689adbc41821071eba45009d6ffdb7853bd8b55ce41a3716fc020ba95a75173b7bb88399cc894751108e180ae9eccf70c5a9e5c0eab85923192a871f6f7489
SSDEEP

24576:PufOgVAsEaXNN693SGipBEYg5t4ATR9giW5YEk4tpJwBBmvRROTU8fvSTXZv:sb

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2704	2316	rundll32.exe	30

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

resource	yara_rule
behavioral1/files/0x0007000000018742-29.dat	mimikatz

Executes dropped EXE 1 IoCs

pid	Process
2708	E6E6.tmp

Loads dropped DLL 6 IoCs

pid	Process
2704	rundll32.exe
2704	rundll32.exe
2704	rundll32.exe
2704	rundll32.exe
2704	rundll32.exe
2704	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 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AppConfig.zip	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\include\win32\jawt_md.h	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 (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\LoginForm.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\AccessWeb\SERVWRAP.ASP	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CNFNOT.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SHARING.CFG	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\jvmticmlr.h	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Visualizer.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\MDIParent.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\Words.pdf	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)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\TextFile.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REMOTE.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\RESEND.CFG	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\Java\jre7\lib\deploy\ffjcext.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\IPM.CFG	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\FORMS\1033\RSSITEM.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AppConfigInternal.zip	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\Internet Explorer\en-US\eula.rtf	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\OMSSMS.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AboutBox.zip	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\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCallbacks.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.h	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\CGMIMP32.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\ACTIVITY.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REC.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKREQ.CFG	rundll32.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.cfg	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\AdobeID.pdf	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 Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Module.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\APPT.CFG	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 (x86)\Microsoft Office\Office14\FORMS\1033\TASKUPD.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\DefaultID.pdf	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\Java\jdk1.7.0_80\include\jni.h	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 (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\SplashScreen.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Form.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\jdwpTransport.h	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\OMSMMS.CFG	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 (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Settings.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Text.zip	rundll32.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Web Server Extensions\14\BIN\1033\FPEXT.MSG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKACC.CFG	rundll32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Sync Framework\v1.0\Documentation\1033\License Agreements\SynchronizationEula.rtf	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\jdk1.7.0_80\jre\lib\deploy\ffjcext.zip	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\INFOMAIL.CFG	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\EXITEM.CFG	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\1423861240811.profile.gz	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 (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\EmptyDatabase.zip	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\secure32	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	EXCEL.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

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.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
2716	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2316	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2704	rundll32.exe
2708	E6E6.tmp
2708	E6E6.tmp
2708	E6E6.tmp
2708	E6E6.tmp
2708	E6E6.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2704	rundll32.exe
Token: SeDebugPrivilege	2704	rundll32.exe
Token: SeTcbPrivilege	2704	rundll32.exe
Token: SeDebugPrivilege	2708	E6E6.tmp

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2316	EXCEL.EXE
2316	EXCEL.EXE
2316	EXCEL.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 380	2316	EXCEL.EXE	31
PID 2316 wrote to memory of 380	2316	EXCEL.EXE	31
PID 2316 wrote to memory of 380	2316	EXCEL.EXE	31
PID 2316 wrote to memory of 380	2316	EXCEL.EXE	31
PID 2316 wrote to memory of 2704	2316	EXCEL.EXE	32
PID 2316 wrote to memory of 2704	2316	EXCEL.EXE	32
PID 2316 wrote to memory of 2704	2316	EXCEL.EXE	32
PID 2316 wrote to memory of 2704	2316	EXCEL.EXE	32
PID 2316 wrote to memory of 2704	2316	EXCEL.EXE	32
PID 2316 wrote to memory of 2704	2316	EXCEL.EXE	32
PID 2316 wrote to memory of 2704	2316	EXCEL.EXE	32
PID 2704 wrote to memory of 2676	2704	rundll32.exe	33
PID 2704 wrote to memory of 2676	2704	rundll32.exe	33
PID 2704 wrote to memory of 2676	2704	rundll32.exe	33
PID 2704 wrote to memory of 2676	2704	rundll32.exe	33
PID 2704 wrote to memory of 2708	2704	rundll32.exe	35
PID 2704 wrote to memory of 2708	2704	rundll32.exe	35
PID 2704 wrote to memory of 2708	2704	rundll32.exe	35
PID 2704 wrote to memory of 2708	2704	rundll32.exe	35
PID 2676 wrote to memory of 2716	2676	cmd.exe	37
PID 2676 wrote to memory of 2716	2676	cmd.exe	37
PID 2676 wrote to memory of 2716	2676	cmd.exe	37
PID 2676 wrote to memory of 2716	2676	cmd.exe	37

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_34c1b41e19977bea70e481344bb22997847eea00e35c04f36ed4a81f8556a8db.xls
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:380
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\secure32.dll,#1
  2⤵
  - Process spawned unexpected child process
  - 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:2704
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 19:52
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2676
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 19:52
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2716
- - C:\Users\Admin\AppData\Local\Temp\E6E6.tmp
    "C:\Users\Admin\AppData\Local\Temp\E6E6.tmp" \\.\pipe\{560AE293-2389-4B92-9A09-59F46B4BCB51}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2708

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

Query Registry

T1012

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\secure32.dll

Filesize
353KB

MD5
735b3416184b92e85386f87edd0722f6

SHA1
9def25157305d724a01900ac8949ef596e0bb1fb

SHA256
c69896a194fe4abc7eed31f718cf5e0406ef95ba1825ac998c4aa97f9764a8b4

SHA512
72733e46841b576b3298d34fef01d0b880626628e28d4641da8a9cadcad430848da5dc4504f81314a363b861a16dc22f1a30b5b2a125e6ab9da915f38eb054d6

Download Submit
\Users\Admin\AppData\Local\Temp\E6E6.tmp

Filesize
55KB

MD5
7e37ab34ecdcc3e77e24522ddfd4852d

SHA1
38e2855e11e353cedf9a8a4f2f2747f1c5c07fcf

SHA256
02ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f

SHA512
1b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587

Download Submit
memory/2316-4-0x0000000006630000-0x0000000006730000-memory.dmp

Filesize
1024KB

Download
memory/2316-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2316-1-0x000000007254D000-0x0000000072558000-memory.dmp

Filesize
44KB

Download
memory/2316-8-0x0000000006630000-0x0000000006730000-memory.dmp

Filesize
1024KB

Download
memory/2316-7-0x0000000006630000-0x0000000006730000-memory.dmp

Filesize
1024KB

Download
memory/2316-9-0x0000000006630000-0x0000000006730000-memory.dmp

Filesize
1024KB

Download
memory/2316-6-0x0000000006630000-0x0000000006730000-memory.dmp

Filesize
1024KB

Download
memory/2316-5-0x0000000006630000-0x0000000006730000-memory.dmp

Filesize
1024KB

Download
memory/2316-50-0x0000000006630000-0x0000000006730000-memory.dmp

Filesize
1024KB

Download
memory/2316-49-0x000000007254D000-0x0000000072558000-memory.dmp

Filesize
44KB

Download
memory/2704-16-0x0000000000220000-0x000000000027E000-memory.dmp

Filesize
376KB

Download
memory/2704-25-0x0000000000220000-0x000000000027E000-memory.dmp

Filesize
376KB

Download
memory/2704-41-0x0000000000220000-0x000000000027E000-memory.dmp

Filesize
376KB

Download
memory/2704-27-0x0000000000220000-0x000000000027E000-memory.dmp

Filesize
376KB

Download
memory/2704-24-0x0000000000220000-0x000000000027E000-memory.dmp

Filesize
376KB

Download