99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923

Analysis

max time kernel
119s
max time network
119s
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, 07:42

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General

Target

99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe
Size

38KB
MD5

6e34f56b12a43a514dd773ad737dc6b0
SHA1

1956e20af1f0e97a0cb3415b1722c8decf72ac66
SHA256

99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923
SHA512

7aaf6b7fcbfc41eeb37a5fd6ed31f47d460c8bff6ae810e3de88e84be7553598a57b87c3741d1cb964577f2253c741a907ece3872738c44733cbc67859ccb0ec
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+EmkcI:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gp

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
5068	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
5068	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"	99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.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	99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 5068	2940	99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe	89
PID 2940 wrote to memory of 5068	2940	99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe	89
PID 2940 wrote to memory of 5068	2940	99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe	89

C:\Users\Admin\AppData\Local\Temp\99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe
"C:\Users\Admin\AppData\Local\Temp\99d6ccd0d1cfa6a98890d1b3fa1ee538cfe68fa718c55c142c85075e5aa3c923N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2940
- 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:5068

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=3820,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=1424 /prefetch:8
1⤵
PID:1404

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
39KB

MD5
2a75a4fa9d1dfee4e091a822db3ed939

SHA1
3ca00dda9965a2188105d4ae39bf88aa30425d01

SHA256
75ff0c6ce56739b57ae01950e4d30a30dc7c6012b12fef38d957677f83fa009d

SHA512
bd3a17b4252cb79467b9e9d4387dfb037051452bb019b04051053abb5d6dc15c2644c2c07153557ec95580b407fb53d949822544f5636bfdde4adf52e88e5729

Download Submit
memory/2940-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2940-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5068-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5068-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads