809eb0570ba5abcd4ab012b354b4e1f0311eff595b1988ab0735bf1ab846e632 | Triage

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 14:04

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General

Target

FunSeed.dll
Size

191KB
MD5

2c9a406e8efc6cacd9a7ad9b1dfd9624
SHA1

0655d8a23dd58c69f3b507e86ec6cdca7dfcc046
SHA256

848910c2d6f8e639a2e01ece22757929c94536e480622f56de1080d8979604ca
SHA512

d76496d844bc5829788058dd4113491e0bb5f6b41a9784fc975d4046ed89ac5f82066dda9d872668ec73c069125e47489dee3e04fc0fa0ecff43d5d0856bd96a
SSDEEP

3072:ZBtP6wEYGpRfiaSXRC/JzoROOlt0ztbSYkn2fgWX1pfLcPPAL:prEvfmY/qBlGzQ7A11G

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

resource	yara_rule
behavioral25/memory/1440-0-0x0000000074B10000-0x0000000074B8B000-memory.dmp	upx

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B1724A64-C4F4-40F0-A498-0E6646DF135E}\ = "Horizon Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B1724A64-C4F4-40F0-A498-0E6646DF135E}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B1724A64-C4F4-40F0-A498-0E6646DF135E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FunSeed.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B1724A64-C4F4-40F0-A498-0E6646DF135E}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B1724A64-C4F4-40F0-A498-0E6646DF135E}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 1440	1936	regsvr32.exe	28
PID 1936 wrote to memory of 1440	1936	regsvr32.exe	28
PID 1936 wrote to memory of 1440	1936	regsvr32.exe	28
PID 1936 wrote to memory of 1440	1936	regsvr32.exe	28
PID 1936 wrote to memory of 1440	1936	regsvr32.exe	28
PID 1936 wrote to memory of 1440	1936	regsvr32.exe	28
PID 1936 wrote to memory of 1440	1936	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\FunSeed.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\FunSeed.dll
  2⤵
  - Modifies registry class
  PID:1440

Network

MITRE ATT&CK Matrix

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Downloads

memory/1440-0-0x0000000074B10000-0x0000000074B8B000-memory.dmp

Filesize
492KB

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