4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b

Analysis

max time kernel
31s
max time network
43s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 21:30

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General

Target

4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
Size

790KB
MD5

0beafa1ec319f6374f8a06b547c5ff50
SHA1

f7b2fc7eed3e5a737e824e824ceed721a30e2f6f
SHA256

4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b
SHA512

e0b2a9f78e16c0cf8f63bfdb00dafb4ca96ec33511449826e01708fd26c12feaf9671375a07bf22c003728e1d6492e7dd6e7dff571df53b7a140f48f4dfb1d9b
SSDEEP

12288:y3TdtLW5WIj1YSSdFxsBSXYMzBUWb9lx/9AgHLo8OW+rBPQuYZ77777f1Y:MDsj1dEcBc/9nPx/igrp+oY

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe regsvr.exe"	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

Disables Task Manager via registry modification
evasion

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Msn Messsenger = "C:\\Windows\\system32\\regsvr.exe"	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1160-56-0x0000000000400000-0x0000000000537000-memory.dmp	autoit_exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\28463\svchost.001	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
File created	C:\Windows\SysWOW64\regsvr.exe	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
File opened for modification	C:\Windows\SysWOW64\regsvr.exe	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
File created	C:\Windows\SysWOW64\svchost .exe	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
File opened for modification	C:\Windows\SysWOW64\svchost .exe	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
File opened for modification	C:\Windows\SysWOW64\28463	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
File created	C:\Windows\SysWOW64\28463\svchost.001	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\regsvr.exe	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
File opened for modification	C:\Windows\regsvr.exe	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

Suspicious behavior: MapViewOfSection 20 IoCs

pid	Process
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 368	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	5
PID 1160 wrote to memory of 368	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	5
PID 1160 wrote to memory of 368	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	5
PID 1160 wrote to memory of 368	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	5
PID 1160 wrote to memory of 368	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	5
PID 1160 wrote to memory of 368	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	5
PID 1160 wrote to memory of 368	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	5
PID 1160 wrote to memory of 376	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	4
PID 1160 wrote to memory of 376	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	4
PID 1160 wrote to memory of 376	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	4
PID 1160 wrote to memory of 376	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	4
PID 1160 wrote to memory of 376	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	4
PID 1160 wrote to memory of 376	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	4
PID 1160 wrote to memory of 376	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	4
PID 1160 wrote to memory of 408	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	3
PID 1160 wrote to memory of 408	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	3
PID 1160 wrote to memory of 408	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	3
PID 1160 wrote to memory of 408	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	3
PID 1160 wrote to memory of 408	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	3
PID 1160 wrote to memory of 408	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	3
PID 1160 wrote to memory of 408	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	3
PID 1160 wrote to memory of 460	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	2
PID 1160 wrote to memory of 460	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	2
PID 1160 wrote to memory of 460	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	2
PID 1160 wrote to memory of 460	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	2
PID 1160 wrote to memory of 460	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	2
PID 1160 wrote to memory of 460	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	2
PID 1160 wrote to memory of 460	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	2
PID 1160 wrote to memory of 476	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	1
PID 1160 wrote to memory of 476	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	1
PID 1160 wrote to memory of 476	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	1
PID 1160 wrote to memory of 476	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	1
PID 1160 wrote to memory of 476	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	1
PID 1160 wrote to memory of 476	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	1
PID 1160 wrote to memory of 476	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	1
PID 1160 wrote to memory of 484	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	8
PID 1160 wrote to memory of 484	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	8
PID 1160 wrote to memory of 484	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	8
PID 1160 wrote to memory of 484	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	8
PID 1160 wrote to memory of 484	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	8
PID 1160 wrote to memory of 484	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	8
PID 1160 wrote to memory of 484	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	8
PID 1160 wrote to memory of 588	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	24
PID 1160 wrote to memory of 588	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	24
PID 1160 wrote to memory of 588	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	24
PID 1160 wrote to memory of 588	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	24
PID 1160 wrote to memory of 588	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	24
PID 1160 wrote to memory of 588	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	24
PID 1160 wrote to memory of 588	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	24
PID 1160 wrote to memory of 668	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	23
PID 1160 wrote to memory of 668	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	23
PID 1160 wrote to memory of 668	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	23
PID 1160 wrote to memory of 668	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	23
PID 1160 wrote to memory of 668	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	23
PID 1160 wrote to memory of 668	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	23
PID 1160 wrote to memory of 668	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	23
PID 1160 wrote to memory of 752	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	22
PID 1160 wrote to memory of 752	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	22
PID 1160 wrote to memory of 752	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	22
PID 1160 wrote to memory of 752	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	22
PID 1160 wrote to memory of 752	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	22
PID 1160 wrote to memory of 752	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	22
PID 1160 wrote to memory of 752	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	22
PID 1160 wrote to memory of 800	1160	4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe	21

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:476

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:460
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:292
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:652
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:108
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1244
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  PID:876
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:744
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:1808
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:844
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:800
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  PID:752
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:668
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:588

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:408

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:376

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:368
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:484

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1328

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1352
- C:\Users\Admin\AppData\Local\Temp\4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe
  "C:\Users\Admin\AppData\Local\Temp\4e7f4627a71318922b33e9f672a01718cdbf541f6fd1a2bcf8990d654ab1941b.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Disables RegEdit via registry modification
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1160

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

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

memory/1160-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1160-55-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/1160-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download