675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00d

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 17:20

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General

Target
675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe
Size 47KB
Sample241002-vwdvta1gpf
SHA256 675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00d
MD5 70671906704bfbad55f86b25cc813a40
SHA1 5d878309371974fc6c5dd118863f5dea640422f4
SHA512 b5311c3b5481f97124b5e3114c035f84e6703624aa835005994d8d3e3ac12e79b71781ada7cd3451381d2550d775e204c89610f9b65530bf0cc4987eb5aac623
SSDEEP 768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhi:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYC
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4632	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4632	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 4632	2504	675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe	84
PID 2504 wrote to memory of 4632	2504	675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe	84
PID 2504 wrote to memory of 4632	2504	675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe	84

C:\Users\Admin\AppData\Local\Temp\675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe
"C:\Users\Admin\AppData\Local\Temp\675078dfef2d25fd4e3b837c603fc77f6e7069e7862005624a519ff969b6f00dN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4632

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 48KB
SHA256 6cc6095799a2b63420f2b9de8d0e1b81b604d586166353b34fa61807ead14e7f
MD5 46faca65a22d4fb34922235adc21e42a
SHA1 76f5783634a64c9a13a8ca954009fe3af0203ac0
SHA512 f8568e54c4e3d6990e64bf6ac50113b8bcb51eda7d6591d133892dc73e89f760f46057f00b88fea7b27879aa04f81e449f2a641e222e4145ee73494b850a2e9c
SSDEEP 1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIW:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYV0
MD5 SHA1 SHA512 SSDEEP

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memory/2504-0-0x0000000000400000-0x0000000000403000-memory.dmp

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memory/2504-5-0x0000000000400000-0x0000000000403000-memory.dmp

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memory/4632-6-0x0000000000400000-0x0000000000403000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads