38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f

General

Target

38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
Size

251KB
MD5

0df6ff00ff9904682859df27cc18d311
SHA1

7b34ec3f430861a08f7c034052ed2576dcdfa452
SHA256

38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f
SHA512

38ba0a34aade413cb7b05365352933c867c623ec82bbfd3e98d9ed137ab97eb7ee63fe03a0be2c2f03e0cd907c557b0cfd2bdc6f63bc3800fb8b7950b6a38546
SSDEEP

768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3iniwIe4j28244N47VPOVoY2a:gMDgG4ChfiPOefgsOUqQwg

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	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe"	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe"	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe"	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe"	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe

Drops file in Windows directory 14 IoCs

description	ioc	Process
File created	C:\Windows\System\mplayerw.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File created	C:\Windows\System\Explorer.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File opened for modification	C:\Windows\System\mplayerw.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File created	C:\Windows\System\fndfst32.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File opened for modification	C:\Windows\System\Sysexp32.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File created	C:\Windows\System\Sysexp32.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File opened for modification	C:\Windows\System\applets.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File opened for modification	C:\Windows\Syssrc32.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File created	C:\Windows\Syssrc32.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File opened for modification	C:\Windows\System\Explorer.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File opened for modification	C:\Windows\Help\intret.cnt	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File created	C:\Windows\Help\intret.cnt	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File created	C:\Windows\System\applets.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
File opened for modification	C:\Windows\System\fndfst32.exe	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1620	1904	WerFault.exe	17

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1"	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1"	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 1620	1904	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe	28
PID 1904 wrote to memory of 1620	1904	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe	28
PID 1904 wrote to memory of 1620	1904	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe	28
PID 1904 wrote to memory of 1620	1904	38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe	28

C:\Users\Admin\AppData\Local\Temp\38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe
"C:\Users\Admin\AppData\Local\Temp\38a8cf9eaffa05b84385cc42654a632e96c239fd79a11bfc76ccee37ea9a120f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 92
  2⤵
  - Program crash
  PID:1620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1620-54-0x0000000000000000-mapping.dmp

Download

Analysis

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