8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 18:08

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General

Target

8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe
Size

113KB
MD5

a892226adb5d9e7c822c2609f704723b
SHA1

243e9a285361ec8010587938c33abee57234ac41
SHA256

8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc
SHA512

4abbb0ccd99ab030d055b5d1de8593c51efa5d622d5b4eeac4e3820241cc05a7dbe3e2e25860da8d2953b5a2a59c05fd952e952e7700f2585fc05ab6b789d1a9
SSDEEP

3072:zqqwbYm3Jr5zkHHc/tjBkRyPYjG1C3q3JPiout:zqqy7vkc/tlkoPYjEC3WioS

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/0x0007000000022e43-139.dat	acprotect
behavioral2/files/0x0007000000022e43-140.dat	acprotect

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1056-132-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral2/files/0x0007000000022e43-139.dat	upx
behavioral2/files/0x0007000000022e43-140.dat	upx
behavioral2/memory/1056-142-0x0000000000400000-0x000000000043A000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
3204	regsvr32.exe
4172	regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\mswinsck.ocx	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\sys.dat	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe
File opened for modification	C:\Windows\win.ini	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ProxyStubClsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ = "Microsoft WinSock Control, version 6.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Control	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Es58.P2P	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CLSID\ = "{248DD896-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\ = "Es58.P2P"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Es58.P2P\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32\ = "C:\\Windows\\SysWow64\\mswinsck.ocx"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\FLAGS\ = "2"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ToolboxBitmap32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\ProgID\ = "Es58.P2P"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock	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\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\ = "Es58"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	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\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Es58.P2P\ = "Es58.P2P"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-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\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A57-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A52-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1\CLSID\ = "{248DD896-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}	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\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\HELPDIR\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{71B1699F-88B0-4174-92F4-0255BAE5AFDF}\ = "P2P"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ = "IMSWinsockControl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\0	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}\TypeLib	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\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81961FAA-2A12-4E97-8978-4C3D4D6041F6}\VERSION\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\VersionIndependentProgID\ = "MSWinsock.Winsock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}\ = "Winsock General Property Page Object"	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\WOW6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4204B6D0-F619-421F-9CED-D4B32BC7D273}\1.0\FLAGS\ = "0"	regsvr32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 3204	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	80
PID 1056 wrote to memory of 3204	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	80
PID 1056 wrote to memory of 3204	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	80
PID 1056 wrote to memory of 4172	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	81
PID 1056 wrote to memory of 4172	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	81
PID 1056 wrote to memory of 4172	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	81
PID 1056 wrote to memory of 3248	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	82
PID 1056 wrote to memory of 3248	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	82
PID 1056 wrote to memory of 3248	1056	8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe	82

C:\Users\Admin\AppData\Local\Temp\8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe
"C:\Users\Admin\AppData\Local\Temp\8839d5a66d0b2fd38c232c28d302836cd09bcd8258e3fc18faf6e8fe598246fc.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s "C:\Windows\system32\mswinsck.ocx"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:3204
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\~DFA6141.tmp"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:4172
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\~DFA7021.tmp"
  2⤵
  PID:3248

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~DFA6141.tmp

Filesize
48KB

MD5
a51e7255c39c24569932dd108d54744f

SHA1
4edf68295874f939b98ccfd2ff2485895f1b4574

SHA256
5b7d924e580a9adbbad9c703d40893c8d6fba777d69a6481de2c0a47d63f0958

SHA512
85189ce086c3d1ad7bb1dcb742583b7cdf0c379c33175a29832955e0469ed6b4d2a56b3482c006679a01e0f6a6e953b83b88fcfac74b9f42238060e105939eed

Download Submit
C:\Users\Admin\AppData\Local\Temp\~DFA6141.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/1056-132-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1056-142-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download