1dbf0f986077a51c7c7629358ed6724ab9dee145feb742223ab1c8c10fe1c1de

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 14:21

Target

c618be7f2555209006bfbd630a4caa8d.dll
Size

26KB
MD5

c618be7f2555209006bfbd630a4caa8d
SHA1

299fcf59245fdfdfed535fd83a3446e85b4dfd68
SHA256

1dbf0f986077a51c7c7629358ed6724ab9dee145feb742223ab1c8c10fe1c1de
SHA512

41a373e05a6fb90086f2a0a50770bd7287db7a429346ffe0dd54ad163d11c01c903e94cc0c9d73833a5f88c5ab0736132f04ea2e39e03909d2302c8d42c9af35
SSDEEP

384:Uoj0Gg9h39SeAcnInmoOnQ50X/JRWCB1i5KGkWmIjJdFH48VrO9:UoAG239dm550BRLQK7FINs4rO9

Score

8^/10

upx

Blocklisted process makes network request 3 IoCs

UPX packed file 1 IoCs

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

resource	yara_rule
behavioral2/memory/1448-0-0x0000000010000000-0x0000000010055000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\s32.txt	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c618be7f2555209006bfbd630a4caa8d.dll"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1448	rundll32.exe
1448	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 1448	3748	rundll32.exe	89
PID 3748 wrote to memory of 1448	3748	rundll32.exe	89
PID 3748 wrote to memory of 1448	3748	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c618be7f2555209006bfbd630a4caa8d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3748
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c618be7f2555209006bfbd630a4caa8d.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:1448

C:\Windows\system32\WerFault.exe
"C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20240313-1423.dmp
1⤵
PID:1104

memory/1448-0-0x0000000010000000-0x0000000010055000-memory.dmp

Filesize
340KB

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