fbdb166638e51d533419f7c006b28ddc4407a7f497a6a5fb3b0211d56e50254d

Analysis

max time kernel
119s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2024 13:09

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General

Target

5fa20e5f2ce61f52d037066a4cfeeda0N.exe
Size

35KB
MD5

5fa20e5f2ce61f52d037066a4cfeeda0
SHA1

c3ddd23a07a2653e2731749baa70ccb91778757d
SHA256

fbdb166638e51d533419f7c006b28ddc4407a7f497a6a5fb3b0211d56e50254d
SHA512

7f0f0c420ebc2964e42331c4adeb02b69c26566c68d748d87b7725921c17d8fdf342c436a672fb91dcbd59809e57fd92cddb50c4b72a9bedd916c3e3f74291f8
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAcBHUIFvS:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gs

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
864	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
864	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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	5fa20e5f2ce61f52d037066a4cfeeda0N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	5fa20e5f2ce61f52d037066a4cfeeda0N.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	5fa20e5f2ce61f52d037066a4cfeeda0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 864	3444	5fa20e5f2ce61f52d037066a4cfeeda0N.exe	93
PID 3444 wrote to memory of 864	3444	5fa20e5f2ce61f52d037066a4cfeeda0N.exe	93
PID 3444 wrote to memory of 864	3444	5fa20e5f2ce61f52d037066a4cfeeda0N.exe	93

C:\Users\Admin\AppData\Local\Temp\5fa20e5f2ce61f52d037066a4cfeeda0N.exe
"C:\Users\Admin\AppData\Local\Temp\5fa20e5f2ce61f52d037066a4cfeeda0N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3444
- 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:864

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4344,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=3056 /prefetch:8
1⤵
PID:4996

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
36KB

MD5
c8ff6cc1518323f0e59960054524b2df

SHA1
af56ab8621c0ad8985ae5f8b3068196a8fb9373d

SHA256
ad9fa7b50515352e6a754f084c14e711b3622b52fad520124e4180686f068288

SHA512
26509cb7b1c81d5b13d74ffb70b0aa1f3fc88506b9965ab716d6cb91b3eecff49b1ee9027a0eeaef8ff99ab03f675b56981191189f2a9eedc0061dab541cefe1

Download Submit
memory/864-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3444-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3444-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads