ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803

Analysis

max time kernel
120s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/09/2024, 03:42

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General

Target

ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe
Size

75KB
MD5

e59d3647ae7cf99f204db1d458d9bc20
SHA1

1fc18df0d6371a6ea9dd7da77e2fc29379f75f2c
SHA256

ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803
SHA512

f0db51fe4943e123e1ec019658df0bc8070f68963b2e869ddcf0a01762399bd481866fc2dccd87afd1eea2ffd9eb47c6477098721e0247d632392829338f9235
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OChhW4dI0h4HCIzhULow:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAF

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
336	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
336	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe
File created	C:\Windows\microsofthelp.exe	ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.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	ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3688 wrote to memory of 336	3688	ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe	82
PID 3688 wrote to memory of 336	3688	ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe	82
PID 3688 wrote to memory of 336	3688	ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe	82

C:\Users\Admin\AppData\Local\Temp\ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe
"C:\Users\Admin\AppData\Local\Temp\ac8f59ef0806d16e828b86c91e7b81a0d1b8a5d5ec9f6c595f75c491521b1803N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3688
- 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:336

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
75KB

MD5
c5c1658907bd3d03ebbeeb1b4f456f16

SHA1
52e3433f404143fbe35f86b9143326c526b3d86a

SHA256
e2b1de7671d617a35481bbf5c2df4630f9687f531f127c3c49a9c748ff7e68a3

SHA512
0e126d492c15d599704adda9fad196cab800ebcfe60046d9def97a9e3ba4d607c80734a231d00566a7b45581ae8afc12b533e3df39170447c281e4595b97b9f9

Download Submit
memory/336-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3688-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3688-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads