28a671a1fb0a9208aee1a3ed45579d468c6c56b39e24988b2a621ef15f105305

Analysis

max time kernel
89s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 08:05

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General

Target

10dd9d8df04d097d5700133143188d48.exe
Size

75KB
MD5

10dd9d8df04d097d5700133143188d48
SHA1

7138b909af43556aa633cb3525eead2cc4e504f6
SHA256

28a671a1fb0a9208aee1a3ed45579d468c6c56b39e24988b2a621ef15f105305
SHA512

f55fcd1538220da17ff74ebb2b7ee2fc4599110b8f54a62b9b4db781895bb1770123c89da775e413ae6d182a402c9095ac6cd52c30d1fae068b1c05817251f0f
SSDEEP

768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3iw7hw:gMDgG4ChfiPOefgsOUqQwgA

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe"	10dd9d8df04d097d5700133143188d48.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe"	10dd9d8df04d097d5700133143188d48.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe"	10dd9d8df04d097d5700133143188d48.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe"	10dd9d8df04d097d5700133143188d48.exe

Drops file in Windows directory 14 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Syssrc32.exe	10dd9d8df04d097d5700133143188d48.exe
File created	C:\Windows\Syssrc32.exe	10dd9d8df04d097d5700133143188d48.exe
File created	C:\Windows\System\Explorer.exe	10dd9d8df04d097d5700133143188d48.exe
File opened for modification	C:\Windows\System\Sysexp32.exe	10dd9d8df04d097d5700133143188d48.exe
File created	C:\Windows\System\Sysexp32.exe	10dd9d8df04d097d5700133143188d48.exe
File created	C:\Windows\System\fndfst32.exe	10dd9d8df04d097d5700133143188d48.exe
File opened for modification	C:\Windows\System\Explorer.exe	10dd9d8df04d097d5700133143188d48.exe
File opened for modification	C:\Windows\Help\intret.cnt	10dd9d8df04d097d5700133143188d48.exe
File opened for modification	C:\Windows\System\fndfst32.exe	10dd9d8df04d097d5700133143188d48.exe
File opened for modification	C:\Windows\System\mplayerw.exe	10dd9d8df04d097d5700133143188d48.exe
File created	C:\Windows\System\mplayerw.exe	10dd9d8df04d097d5700133143188d48.exe
File opened for modification	C:\Windows\System\applets.exe	10dd9d8df04d097d5700133143188d48.exe
File created	C:\Windows\System\applets.exe	10dd9d8df04d097d5700133143188d48.exe
File created	C:\Windows\Help\intret.cnt	10dd9d8df04d097d5700133143188d48.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4580	2404	WerFault.exe	16

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1"	10dd9d8df04d097d5700133143188d48.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	10dd9d8df04d097d5700133143188d48.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1"	10dd9d8df04d097d5700133143188d48.exe

C:\Users\Admin\AppData\Local\Temp\10dd9d8df04d097d5700133143188d48.exe
"C:\Users\Admin\AppData\Local\Temp\10dd9d8df04d097d5700133143188d48.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
PID:2404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 336
  2⤵
  - Program crash
  PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2404 -ip 2404
1⤵
PID:4492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System\Sysexp32.exe

Filesize
35KB

MD5
70697b7768b70f61268e7edaf2356a28

SHA1
e6bbe08f77117c76d5db6465647797e36e60cba9

SHA256
82e977caa113fea01982553dfd70995879d4ee6ea125fda1dc7086956c2c8880

SHA512
5748eb54e0a9fdea656b7799281f9599cb13a7770fc15d0fa7c7b874f1f84e8ed579d080c25594d219863fb0d090770919191085cdcd3bc09c1996d1fdb82e8e

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads