a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76

Analysis

max time kernel
119s
max time network
99s
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, 07:06

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General

Target

a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe
Size

39KB
MD5

61dd3beeec37ca3605327731117e1a60
SHA1

01ced34fb70459293185602bc22fdde4684fe6cf
SHA256

a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76
SHA512

4ad53568a7f868ad7d45ef3097614bdbc6c24d31457c576a837bb6be6543dcc3f977b9cbd9e3786c84be4c9fb114a878c8850843c6aa386420b40ea3bbed3691
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAcBHUIF2a:e6q10k0EFjed6rqJ+6vghzwYu7vih9GF

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3056	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3056	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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 3056	3060	a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe	82
PID 3060 wrote to memory of 3056	3060	a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe	82
PID 3060 wrote to memory of 3056	3060	a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe	82

C:\Users\Admin\AppData\Local\Temp\a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe
"C:\Users\Admin\AppData\Local\Temp\a9f7ab1497b73ba2b97ad4b23e8eba3401950b21882eb727481a822ceea3bf76N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- 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:3056

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
eff6ff50ff6737c5587ede2c1ffb3f9f

SHA1
dc00fb7fd2a58636a88862972e43b497cebad3c5

SHA256
605af82ab6f790107add03cbd77335fdbd98e6d01d5e93029edd105de4d7f765

SHA512
1aaee341724b6a7ce8263444305afd7f2e59e5a7ff0eead5334ac6ef5fae67c1c40d53e2ea6fac2c3d09d206a9580d2e7484088ceadb616f97ebc5b0eec98e5b

Download Submit
memory/3056-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3060-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3060-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads