c7e1a1b08de4b6e01a17e4c4d5795964dae98aadba3fdd3ff5da33fc5adae7f6

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
submitted
19-03-2024 02:01

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General

Target

d4efd4c8c02bf1c7130efdcf474f1b69.exe
Size

899KB
MD5

d4efd4c8c02bf1c7130efdcf474f1b69
SHA1

3f17c11369338e6767fe0dade8a0f9dbc7ddac27
SHA256

c7e1a1b08de4b6e01a17e4c4d5795964dae98aadba3fdd3ff5da33fc5adae7f6
SHA512

9e8da8bd66fb3771523c98eb58ed343f3c360e67cb3978a332c176c5e8e4717a6a0ecb391118812b8d76be92637c88d3ffc10c82769cf96a1d1d5b3abf4f8e78
SSDEEP

24576:dLJEU63Vi1wZDIzR2D4M0Q2VVFByf9djCf:xJJGZDn46abB4dO

Score

10^/10

discovery execution persistence

Malware Config

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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\chromes.exe\","	d4efd4c8c02bf1c7130efdcf474f1b69.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2256	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1524 set thread context of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2468	2684	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4efd4c8c02bf1c7130efdcf474f1b69.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4efd4c8c02bf1c7130efdcf474f1b69.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe
2256	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe
Token: SeDebugPrivilege	2256	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 1548	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	30
PID 1524 wrote to memory of 1548	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	30
PID 1524 wrote to memory of 1548	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	30
PID 1524 wrote to memory of 1548	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	30
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 1548 wrote to memory of 2256	1548	WScript.exe	32
PID 1548 wrote to memory of 2256	1548	WScript.exe	32
PID 1548 wrote to memory of 2256	1548	WScript.exe	32
PID 1548 wrote to memory of 2256	1548	WScript.exe	32
PID 1524 wrote to memory of 2684	1524	d4efd4c8c02bf1c7130efdcf474f1b69.exe	31
PID 2684 wrote to memory of 2468	2684	d4efd4c8c02bf1c7130efdcf474f1b69.exe	34
PID 2684 wrote to memory of 2468	2684	d4efd4c8c02bf1c7130efdcf474f1b69.exe	34
PID 2684 wrote to memory of 2468	2684	d4efd4c8c02bf1c7130efdcf474f1b69.exe	34
PID 2684 wrote to memory of 2468	2684	d4efd4c8c02bf1c7130efdcf474f1b69.exe	34

C:\Users\Admin\AppData\Local\Temp\d4efd4c8c02bf1c7130efdcf474f1b69.exe
"C:\Users\Admin\AppData\Local\Temp\d4efd4c8c02bf1c7130efdcf474f1b69.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Lhzbhsndksibtmsrzld.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1548
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\chromes.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2256
- C:\Users\Admin\AppData\Local\Temp\d4efd4c8c02bf1c7130efdcf474f1b69.exe
  C:\Users\Admin\AppData\Local\Temp\d4efd4c8c02bf1c7130efdcf474f1b69.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 224
    3⤵
    - Program crash
    PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\_Lhzbhsndksibtmsrzld.vbs

Filesize
137B

MD5
70ba873f322cec5326c8aa85dbfb35fe

SHA1
367e6c1396484088760d363ac032ecb56b355282

SHA256
92dd75ce4d861fc5096b5e77fa6ce4e1954b2369a4e29cebd541a8700d5becdf

SHA512
5cdd8fbe65a0c99157d187579ef1e1881d772f276ca085e5a3961f9e01c3f6d27e555b855ff25c8b6a231514383828f6599cb389c7ad5692cf9ab8bbda2421d9

Download Submit
memory/1524-0-0x0000000000C60000-0x0000000000D46000-memory.dmp

Filesize
920KB

Download
memory/1524-1-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/1524-2-0x00000000042C0000-0x0000000004300000-memory.dmp

Filesize
256KB

Download
memory/1524-3-0x00000000042C0000-0x0000000004300000-memory.dmp

Filesize
256KB

Download
memory/1524-4-0x00000000042C0000-0x0000000004300000-memory.dmp

Filesize
256KB

Download
memory/1524-5-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/1524-6-0x00000000042C0000-0x0000000004300000-memory.dmp

Filesize
256KB

Download
memory/1524-7-0x00000000042C0000-0x0000000004300000-memory.dmp

Filesize
256KB

Download
memory/1524-8-0x00000000042C0000-0x0000000004300000-memory.dmp

Filesize
256KB

Download
memory/1524-9-0x0000000007F40000-0x0000000007FDE000-memory.dmp

Filesize
632KB

Download
memory/1524-10-0x0000000005FC0000-0x000000000603A000-memory.dmp

Filesize
488KB

Download
memory/1524-11-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-12-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-14-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-16-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-18-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-20-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-22-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-24-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-26-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-28-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-30-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-32-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-34-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-38-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-36-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-44-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-42-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-50-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-48-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-46-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-40-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-56-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-58-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-62-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-60-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-54-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-52-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-70-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-68-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-66-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-64-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-72-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-74-0x0000000005FC0000-0x0000000006035000-memory.dmp

Filesize
468KB

Download
memory/1524-2290-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2256-2293-0x0000000073A40000-0x0000000073FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2256-2294-0x0000000073A40000-0x0000000073FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2256-2295-0x0000000002650000-0x0000000002690000-memory.dmp

Filesize
256KB

Download
memory/2256-2296-0x0000000002650000-0x0000000002690000-memory.dmp

Filesize
256KB

Download
memory/2256-2297-0x0000000073A40000-0x0000000073FEB000-memory.dmp

Filesize
5.7MB

Download