f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d

Analysis

max time kernel
304s
max time network
331s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 09:18

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General

Target

f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe
Size

226KB
MD5

340b4bf919417051a77cbdf7e098d940
SHA1

fda65a0ea58995c7be36cfde4de42fec6f3f2a93
SHA256

f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d
SHA512

a3af7cebd25a8ad335a45ea30004da0661fb186651f9fa8f0a7af4128dcb07eab2896132482bc2a006f6336b11f2756b5d25ee7eb8b5f0aa8184451c3e881555
SSDEEP

3072:jPb1HBz/QVGEB7ZSBYfkVoFdRrqo0aRaA/HF673+UWHIfrvt84NEktOboutoout:1HBz/QVDBNkVsuaRaU6mHGlwboSooS

Score

9^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0007000000022de0-139.dat	acprotect
behavioral2/files/0x0007000000022de0-140.dat	acprotect

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3396-132-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral2/files/0x0007000000022de0-139.dat	upx
behavioral2/files/0x0007000000022de0-140.dat	upx

Loads dropped DLL 2 IoCs

pid	Process
1776	regsvr32.exe
804	regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\mswinsck.ocx	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\sys.dat	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{40FC6ED4-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\ = "Es58.P2P"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ = "_P2P"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ProgID\ = "MSWinsock.Winsock.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Version\ = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1\ = "Microsoft WinSock Control, version 6.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\VERSION	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ProxyStubClsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\~DFA5727.tmp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1\CLSID\ = "{248DD896-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\ = "Es58"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A53-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\1\ = "132497"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ = "_P2P"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\HELPDIR\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\VERSION\ = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}\ = "Winsock General Property Page Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ToolboxBitmap32\ = "C:\\Windows\\SysWow64\\mswinsck.ocx, 1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\ = "Microsoft Winsock Control 6.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\mswinsck.ocx"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ = "P2P"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3396	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 1776	3396	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe	81
PID 3396 wrote to memory of 1776	3396	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe	81
PID 3396 wrote to memory of 1776	3396	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe	81
PID 3396 wrote to memory of 804	3396	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe	84
PID 3396 wrote to memory of 804	3396	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe	84
PID 3396 wrote to memory of 804	3396	f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe	84

C:\Users\Admin\AppData\Local\Temp\f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe
"C:\Users\Admin\AppData\Local\Temp\f6673a3dba538c31b0cead2c4ebb7f1464fba02f74eb62abe5f99f8ea3ba373d.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s "C:\Windows\system32\mswinsck.ocx"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:1776
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\~DFA5727.tmp"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:804

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~DFA5727.tmp

Filesize
48KB

MD5
a51e7255c39c24569932dd108d54744f

SHA1
4edf68295874f939b98ccfd2ff2485895f1b4574

SHA256
5b7d924e580a9adbbad9c703d40893c8d6fba777d69a6481de2c0a47d63f0958

SHA512
85189ce086c3d1ad7bb1dcb742583b7cdf0c379c33175a29832955e0469ed6b4d2a56b3482c006679a01e0f6a6e953b83b88fcfac74b9f42238060e105939eed

Download Submit
C:\Users\Admin\AppData\Local\Temp\~DFA5727.tmp

Filesize
48KB

MD5
a51e7255c39c24569932dd108d54744f

SHA1
4edf68295874f939b98ccfd2ff2485895f1b4574

SHA256
5b7d924e580a9adbbad9c703d40893c8d6fba777d69a6481de2c0a47d63f0958

SHA512
85189ce086c3d1ad7bb1dcb742583b7cdf0c379c33175a29832955e0469ed6b4d2a56b3482c006679a01e0f6a6e953b83b88fcfac74b9f42238060e105939eed

Download Submit
C:\Windows\SysWOW64\mswinsck.ocx

Filesize
105KB

MD5
9484c04258830aa3c2f2a70eb041414c

SHA1
b242a4fb0e9dcf14cb51dc36027baff9a79cb823

SHA256
bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5

SHA512
9d0e9f0d88594746ba41ea4a61a53498619eda596e12d8ec37d01cfe8ceb08be13e3727c83d630a6d9e6d03066f62444bb94ea5a0d2ed9d21a270e612db532a0

Download Submit
C:\Windows\SysWOW64\mswinsck.ocx

Filesize
105KB

MD5
9484c04258830aa3c2f2a70eb041414c

SHA1
b242a4fb0e9dcf14cb51dc36027baff9a79cb823

SHA256
bf7e47c16d7e1c0e88534f4ef95e09d0fd821ed1a06b0d95a389b35364b63ff5

SHA512
9d0e9f0d88594746ba41ea4a61a53498619eda596e12d8ec37d01cfe8ceb08be13e3727c83d630a6d9e6d03066f62444bb94ea5a0d2ed9d21a270e612db532a0

Download Submit
memory/3396-132-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download