d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457d

Analysis

max time kernel
119s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2024 06:36

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General

Target

d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe
Size

41KB
MD5

8675bba21e95194410f2084861048730
SHA1

67a4b36989e6e91c3967cd85cde907c4e99de6dd
SHA256

d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457d
SHA512

9d38dfd89da7abf8bef9b6a4c68e396e0b044720e3487ea24bc65cd3da96476ebf63496be1c8515e23ee35c2221a585d9e4597fac9263a104203ee3d9451a0a9
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjUvJjWHy:e6q10k0EFjed6rqJ+6vghzwYu7vih9GT

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3696	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3696	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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 3696	2084	d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe	82
PID 2084 wrote to memory of 3696	2084	d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe	82
PID 2084 wrote to memory of 3696	2084	d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe	82

C:\Users\Admin\AppData\Local\Temp\d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe
"C:\Users\Admin\AppData\Local\Temp\d21f1d7e799f7592d47246c7fd419b9eb8f421e02c88d13596c9fcf3ba33457dN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3696

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

C:\Windows\microsofthelp.exe

Filesize
42KB

MD5
342023a1d1e16ce2d3d75bdeee83314a

SHA1
87640157c4d339f36a9c5b03a00d31f121a4f020

SHA256
820f5fbd4b3e4722417cfc5856591f04e89d9fd5b103781c7169e086ef5439d9

SHA512
bf3eaef48dd299cd07ef5b073615535371b5fc4d0516f2fdb0ee7e5c9bda62e9bc03e2e450dc34b8c2dfa38686f613f5e49a7fc975c85ea45e32818c890a0694

Download Submit
memory/2084-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2084-4-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3696-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads