42b3476ac872b08cc5751369855cac80e2006f9062ef8dfbab4390f9312a2740

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 21:41

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General

Target

42b3476ac872b08cc5751369855cac80e2006f9062ef8dfbab4390f9312a2740.dll
Size

76KB
MD5

2a86b12e50fc0796e5c8a14e2a67bce0
SHA1

d13dbdbc4cd1e27f136525755237db0b71defb68
SHA256

42b3476ac872b08cc5751369855cac80e2006f9062ef8dfbab4390f9312a2740
SHA512

69b12249c4fc65bfbfc465b12ba3b9722d67c2e059bee9d9b349fa12fc170c681b3d8bb2699ac732c7cd2a408a54bbc7a068842c9a8961ff47d2a33ad137e44f
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z+T5c:c8y93KQjy7G55riF1cMo038a

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1732-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1752 1732 WerFault.exe rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 1732 rundll32.exe

pid	pid_target	process	target process
1752	1732	WerFault.exe	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1732	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1040 wrote to memory of 1732	1040	rundll32.exe	rundll32.exe
PID 1040 wrote to memory of 1732	1040	rundll32.exe	rundll32.exe
PID 1040 wrote to memory of 1732	1040	rundll32.exe	rundll32.exe
PID 1040 wrote to memory of 1732	1040	rundll32.exe	rundll32.exe
PID 1040 wrote to memory of 1732	1040	rundll32.exe	rundll32.exe
PID 1040 wrote to memory of 1732	1040	rundll32.exe	rundll32.exe
PID 1040 wrote to memory of 1732	1040	rundll32.exe	rundll32.exe
PID 1732 wrote to memory of 1752	1732	rundll32.exe	WerFault.exe
PID 1732 wrote to memory of 1752	1732	rundll32.exe	WerFault.exe
PID 1732 wrote to memory of 1752	1732	rundll32.exe	WerFault.exe
PID 1732 wrote to memory of 1752	1732	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\42b3476ac872b08cc5751369855cac80e2006f9062ef8dfbab4390f9312a2740.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1040

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\42b3476ac872b08cc5751369855cac80e2006f9062ef8dfbab4390f9312a2740.dll,#1
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 328
3⤵
- Program crash
PID:1752

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

Replay Monitor

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Downloads

memory/1732-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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