f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/11/2024, 18:13

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General

Target
f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe
Size 41KB
Sample241113-wt38cswhrg
SHA256 f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29
MD5 7ce737d3e6a7f4bb92f2a426c211e1d0
SHA1 604ed2dda7e8c9be5218fafef4e8f0d01dc7dd83
SHA512 ba8e2e31903cfc2e426861a2262caa71c02f736bc0cbd59abf99c885788dc239f11688695e614bb9cfb43e100213d273bb600c30a59cba1701296e56e59b7da6
SSDEEP 768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6Ig:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gk
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1736	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1736	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.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	f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4596 wrote to memory of 1736	4596	f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe	83
PID 4596 wrote to memory of 1736	4596	f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe	83
PID 4596 wrote to memory of 1736	4596	f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe	83

C:\Users\Admin\AppData\Local\Temp\f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe
"C:\Users\Admin\AppData\Local\Temp\f354be98a308a375afc60de7789946c18edf0ec1545f4ee162bd66976694da29.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4596
- 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:1736

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

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 41KB
SHA256 e4cdd7e1b1c9b82812e8b7ff0962ebdc9a26358fba316671103720dfbc18f1bf
MD5 e83240b0ab6e86f8d8c7815a9702f163
SHA1 985e8e140d5825117f8f4520cc4075a7ba3b1f55
SHA512 d12fc564f4978082f2ed8e142063bb4f0a8903037074fb3b545980c7be4b980d9a0adbd2f02780e673ecfd96950626031daf3d5d018a78994d03a6d5e4de989c
SSDEEP 768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IF:e6q10k0EFjed6rqJ+6vghzwYu7vih9G5
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1736-7-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/1736-8-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4596-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4596-6-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads