0c04de9951a3657020bc0599f1a984c5708b0701c7461a030d81d4f0db768579

Analysis

max time kernel
240s
max time network
295s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 03:38

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General

Target

0d3505e13b97336d111d46a65cd3f5a8.exe
Size

220KB
MD5

0d3505e13b97336d111d46a65cd3f5a8
SHA1

0f57f31a6a19349c7532266fd1a66d977f49b5f5
SHA256

0c04de9951a3657020bc0599f1a984c5708b0701c7461a030d81d4f0db768579
SHA512

c5bd76deda613e7aa7146cf310e8c1e64b32b24bc14977fe5b8afee84cbf6d3e689bde92ec1f3a81b72aea4472397a4a71b20ea98c18cf0569fd1d3d0541b693
SSDEEP

768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3ini2L2o277r2MIBBehUw:gMDgG4ChfiPOefgsOUqQwgH

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"	0d3505e13b97336d111d46a65cd3f5a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe"	0d3505e13b97336d111d46a65cd3f5a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe"	0d3505e13b97336d111d46a65cd3f5a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe"	0d3505e13b97336d111d46a65cd3f5a8.exe

Drops file in Windows directory 14 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System\mplayerw.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File created	C:\Windows\Help\intret.cnt	0d3505e13b97336d111d46a65cd3f5a8.exe
File opened for modification	C:\Windows\System\Sysexp32.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File opened for modification	C:\Windows\System\applets.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File created	C:\Windows\Syssrc32.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File opened for modification	C:\Windows\System\Explorer.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File opened for modification	C:\Windows\Help\intret.cnt	0d3505e13b97336d111d46a65cd3f5a8.exe
File created	C:\Windows\System\Sysexp32.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File created	C:\Windows\System\applets.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File opened for modification	C:\Windows\System\fndfst32.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File created	C:\Windows\System\mplayerw.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File opened for modification	C:\Windows\Syssrc32.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File created	C:\Windows\System\fndfst32.exe	0d3505e13b97336d111d46a65cd3f5a8.exe
File created	C:\Windows\System\Explorer.exe	0d3505e13b97336d111d46a65cd3f5a8.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1112	1828	WerFault.exe	11

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	0d3505e13b97336d111d46a65cd3f5a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1"	0d3505e13b97336d111d46a65cd3f5a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1"	0d3505e13b97336d111d46a65cd3f5a8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 1112	1828	0d3505e13b97336d111d46a65cd3f5a8.exe	27
PID 1828 wrote to memory of 1112	1828	0d3505e13b97336d111d46a65cd3f5a8.exe	27
PID 1828 wrote to memory of 1112	1828	0d3505e13b97336d111d46a65cd3f5a8.exe	27
PID 1828 wrote to memory of 1112	1828	0d3505e13b97336d111d46a65cd3f5a8.exe	27

C:\Users\Admin\AppData\Local\Temp\0d3505e13b97336d111d46a65cd3f5a8.exe
"C:\Users\Admin\AppData\Local\Temp\0d3505e13b97336d111d46a65cd3f5a8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 92
  2⤵
  - Program crash
  PID:1112

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
232KB

MD5
b1878692dc5fd520fc20e26c8e4fda76

SHA1
01177874639f9e2ec0467014cc135789664cdeb7

SHA256
f71a898d7292ecf33c35eb6c3ffbe31b455acd84e60f78148b28749e54ece891

SHA512
e15ea7db9b3ba6084db7cf88bf239f343ab5792b53a0ae2e0207f7eb5cd24d01d56f6ac517c7296d7f36c314e4c2cb3c12b3e76597fdcb6833b6af4912e8afe9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads