d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945

Analysis

max time kernel
122s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2022 22:14

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General

Target

d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Size

16KB
MD5

6d8e6d8409359382519fbe6d43a27d66
SHA1

3f2290a9f01ac3384a428cadd0a39d305eacb831
SHA256

d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945
SHA512

27925b6b7d3de939ec0fac74d4997c7be2b800e6778b9e276f20dd6de1662aca73832b423981591bbe0200b4885b9a8549eb77ef24609c4799e4e2f8338cf70f
SSDEEP

384:rwxFz66WAVDoG9LG16gZLZYJ5GOLPH1SiVRPlZjNLFx6p:r8ctAtBQ16CZYfGOoKPFxq

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\ = "????(&0)"	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE\" http://hao.meiyingie.com/?0001"	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Internat Explorer.url	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)\Command\ = "\"C:\\Program Files\\Internet Explorer\\\\IEXPLORE.EXE\" %1 http://hao.meiyingie.com/?0001"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\DefaultIcon\ = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE"	regedit.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\ShellFolder\Attributes = "10"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\ = "Internet Explorer"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\DefaultIcon\ = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\ShellFolder	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)\Command	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z\Command	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE\" http://hao.meiyingie.com/?0001"	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)\Command\ = "\"C:\\Program Files\\Internet Explorer\\\\IEXPLORE.EXE\" %1 http://hao.meiyingie.com/?0001"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z\ = "??(&D)"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\??(&R)	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)\ = "????(&H)"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)\ = "????(&H)"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)\Command	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z\Command	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z\Command\ = "Rundll32.exe"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\??(&R)\Command	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\??(&R)\Command\ = "Rundll32.exe Shell32.dll,Control_RunDLL Inetcpl.cpl"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\ = "Internet Explorer"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Open(&O)	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\ShellFolder	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\ = "????(&0)"	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\DefaultIcon	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\??(&R)	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\??(&R)\Command\ = "Rundll32.exe Shell32.dll,Control_RunDLL Inetcpl.cpl"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z\ = "??(&D)"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\Z\Command\ = "Rundll32.exe"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\Shell\??(&R)\Command	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\DefaultIcon	regedit.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\WOW6432Node\CLSID\{C42EB5A1-0EED-E549-91B0-153485860110}\ShellFolder\Attributes = "10"	regedit.exe

Runs .reg file with regedit 1 IoCs

pid	Process
840	regedit.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeRestorePrivilege	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Token: SeBackupPrivilege	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Token: SeRestorePrivilege	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Token: SeBackupPrivilege	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Token: SeDebugPrivilege	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Token: SeRestorePrivilege	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
Token: SeBackupPrivilege	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 3808	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe	81
PID 2016 wrote to memory of 3808	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe	81
PID 2016 wrote to memory of 3808	2016	d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe	81
PID 3808 wrote to memory of 840	3808	cmd.exe	83
PID 3808 wrote to memory of 840	3808	cmd.exe	83
PID 3808 wrote to memory of 840	3808	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe
"C:\Users\Admin\AppData\Local\Temp\d165f6e5ee5ec5854a8d0fb8501a625d73b8ac24ae1f37ea56865d54942eb945.exe"
1⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c regedit /s "C:\Users\Admin\AppData\Local\Temp\TempIE.reg"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3808
- - C:\Windows\SysWOW64\regedit.exe
    regedit /s "C:\Users\Admin\AppData\Local\Temp\TempIE.reg"
    3⤵
    - Modifies registry class
    - Runs .reg file with regedit
    PID:840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\TempIE.reg

Filesize
2KB

MD5
bf050ae6f7573dbb0823dff030851dee

SHA1
46de6ffd8e85c6edce14aa9a730ca776cf1fad46

SHA256
9d483d5aa98bf9dc97306442769f4703f07e7ea3fce24fedd169e3b15d7385b2

SHA512
b708ec524211d7787e4540f2f7c6103720c2f523e26ea4c854558edc734e59bc6a4e14e350b4ebf1af7a75718fe85a7d28e765405f629c9304ef67fa3b246846

Download Submit
memory/2016-132-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2016-138-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download