mimikatz | e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737

General

Target

e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe
Size

390KB
MD5

b6cc1e4052f613e15a8b05439f5877b4
SHA1

9bb3cb5080ae18985d93a28faeca6ae06d768b21
SHA256

e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737
SHA512

cd48f448cd355a1463ca090d8ad47100596e1ed1a1a771f26c672406669433e9d9d915268def0aad844511f65a3c69fbb3ab2e2dc610ecc0f66a8524a6a8ea73

Score

10^/10

mimikatz bootkit persistence

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 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\F656.tmp	mimikatz
C:\Users\Admin\AppData\Local\Temp\F656.tmp	mimikatz

Executes dropped EXE 1 IoCs

Processes:

F656.tmp

pid process

2756 F656.tmp

pid	process
2756	F656.tmp

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1772 rundll32.exe
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
T1067

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PhysicalDrive0 rundll32.exe

pid	process
1772	rundll32.exe

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

Drops file in Program Files directory 39 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\classfile_constants.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgePackages.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\win32\jawt_md.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\etc\visualvm.conf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\lib\deploy\ffjcext.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\lib\amd64\jvm.cfg	rundll32.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\lib\deploy\ffjcext.zip	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\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Web Server Extensions\16\BIN\1033\FPEXT.MSG	rundll32.exe
File opened for modification	C:\Program Files\StepHide.dwg	rundll32.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\chrome.7z	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgeCalls.c	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496939244.profile.gz	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPP.VBS	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\ReadCheckpoint.xlsx	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\jawt.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\jni.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\lib\amd64\jvm.cfg	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\vfs\Windows\SHELLNEW\EXCEL12.XLSX	rundll32.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.cfg	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\jvmti.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\javafx-src.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496926556.profile.gz	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\GrantFormat.rtf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\jdwpTransport.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgeCallbacks.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496926306.profile.gz	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\1033\PROTTPLN.XLS	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\Java\jdk1.8.0_66\include\jvmticmlr.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgeCalls.h	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Assets\Archive.zip	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\include\win32\jni_md.h	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423496937509.profile.gz	rundll32.exe
File opened for modification	C:\Program Files\UnregisterSet.rtf	rundll32.exe

Drops file in Windows directory 4 IoCs

Processes:

e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exerundll32.exe

description	ioc	process
File created	C:\Windows\perfc.dat	e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.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

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

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
T1053

Processes:

schtasks.exe

pid process

3236 schtasks.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

rundll32.exeF656.tmp

pid process

1772 rundll32.exe
1772 rundll32.exe
2756 F656.tmp
2756 F656.tmp
2756 F656.tmp
2756 F656.tmp
2756 F656.tmp
2756 F656.tmp

pid	process
3236	schtasks.exe

pid	process
1772	rundll32.exe
1772	rundll32.exe
2756	F656.tmp
2756	F656.tmp
2756	F656.tmp
2756	F656.tmp
2756	F656.tmp
2756	F656.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

rundll32.exeF656.tmp

description	pid	process
Token: SeShutdownPrivilege	1772	rundll32.exe
Token: SeDebugPrivilege	1772	rundll32.exe
Token: SeTcbPrivilege	1772	rundll32.exe
Token: SeDebugPrivilege	2756	F656.tmp

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exerundll32.execmd.exe

description	pid	process	target process
PID 1160 wrote to memory of 1772	1160	e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe	rundll32.exe
PID 1160 wrote to memory of 1772	1160	e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe	rundll32.exe
PID 1160 wrote to memory of 1772	1160	e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe	rundll32.exe
PID 1772 wrote to memory of 2764	1772	rundll32.exe	cmd.exe
PID 1772 wrote to memory of 2764	1772	rundll32.exe	cmd.exe
PID 1772 wrote to memory of 2764	1772	rundll32.exe	cmd.exe
PID 1772 wrote to memory of 2756	1772	rundll32.exe	F656.tmp
PID 1772 wrote to memory of 2756	1772	rundll32.exe	F656.tmp
PID 2764 wrote to memory of 3236	2764	cmd.exe	schtasks.exe
PID 2764 wrote to memory of 3236	2764	cmd.exe	schtasks.exe
PID 2764 wrote to memory of 3236	2764	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe
"C:\Users\Admin\AppData\Local\Temp\e2ea7f9581a7e1386fc6601d1421e1194373c1c891f2d406de6d49810fcc7737.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1160

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Windows\perfc.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:1772

C:\Windows\SysWOW64\cmd.exe
/c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 09:41
3⤵
- Suspicious use of WriteProcessMemory
PID:2764

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 09:41
4⤵
- Creates scheduled task(s)
PID:3236

C:\Users\Admin\AppData\Local\Temp\F656.tmp
"C:\Users\Admin\AppData\Local\Temp\F656.tmp" \\.\pipe\{403AA455-6B6F-414C-8AA4-7FC3030C0ED2}
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2756

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Bootkit

1

T1067

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\F656.tmp
Filesize
55KB

MD5
7e37ab34ecdcc3e77e24522ddfd4852d

SHA1
38e2855e11e353cedf9a8a4f2f2747f1c5c07fcf

SHA256
02ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f

SHA512
1b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587

Download Submit
C:\Users\Admin\AppData\Local\Temp\F656.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
C:\Windows\perfc.dat
Filesize
353KB

MD5
71b6a493388e7d0b40c83ce903bc6b04

SHA1
34f917aaba5684fbe56d3c57d48ef2a1aa7cf06d

SHA256
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745

SHA512
072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f

Download Submit
memory/1772-130-0x0000000000000000-mapping.dmp

Download
memory/1772-133-0x00000000027A0000-0x00000000027FE000-memory.dmp

Filesize
376KB

Download
memory/1772-139-0x00000000027A0000-0x00000000027FE000-memory.dmp

Filesize
376KB

Download
memory/2756-141-0x0000000000000000-mapping.dmp

Download
memory/2764-140-0x0000000000000000-mapping.dmp

Download
memory/3236-144-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads