81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600

Analysis

max time kernel
177s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 20:29

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General

Target

81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
Size

202KB
MD5

a3d8a618f020a6f36748862c0902506c
SHA1

37c33f815662d27b5648cd3be3b88298bc401753
SHA256

81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600
SHA512

e8b23f614ae0bcb100fe754a4d62857f2597a3db3d3a305e9b9aeaf4beb6340175afe113b830c1730f0c247f048c6c6d9bd113bb9575d45cf53692543224b347
SSDEEP

768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3iepFV2DIQqSsFY2s/qq/D:gMDgG4ChfiPOefgsOUqQwg8

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe"	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe"	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe"	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe"	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe

Drops file in Windows directory 14 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System\Sysexp32.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File opened for modification	C:\Windows\System\applets.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File created	C:\Windows\System\Sysexp32.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File created	C:\Windows\System\applets.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File opened for modification	C:\Windows\Help\intret.cnt	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File created	C:\Windows\Help\intret.cnt	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File created	C:\Windows\System\mplayerw.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File opened for modification	C:\Windows\Syssrc32.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File created	C:\Windows\Syssrc32.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File opened for modification	C:\Windows\System\fndfst32.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File opened for modification	C:\Windows\System\Explorer.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File opened for modification	C:\Windows\System\mplayerw.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File created	C:\Windows\System\fndfst32.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
File created	C:\Windows\System\Explorer.exe	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1672	2580	WerFault.exe	79

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1"	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1"	81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe

C:\Users\Admin\AppData\Local\Temp\81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe
"C:\Users\Admin\AppData\Local\Temp\81506f0a8e61af10be80eb64a2d585b566169ece18c22014f2c1ad650b5f8600.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
PID:2580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2580 -s 336
  2⤵
  - Program crash
  PID:1672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2580 -ip 2580
1⤵
PID:4684

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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