c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/11/2024, 03:23

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General

Target

c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe
Size

52KB
MD5

690e817d61d161c8b6bce7b5543da09e
SHA1

c09f2e0daa904ff4a74067d29af1f98a190550ab
SHA256

c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd
SHA512

fe3431ce3974afd1a5d299eb60c0ea5729ab3b532bcd54e46c98ecab8de33ca307c4452da666fa40459ed273874f57a504c23749b383f67858fdf80f022bb254
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+uhIehXehXhHhk:E1oEFlt6vghzwYu7vih9GueIh9j2IoHl

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2556	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2556	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.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	c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 2556	5096	c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe	83
PID 5096 wrote to memory of 2556	5096	c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe	83
PID 5096 wrote to memory of 2556	5096	c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe	83

C:\Users\Admin\AppData\Local\Temp\c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe
"C:\Users\Admin\AppData\Local\Temp\c1b91e797fabb02d1d5e5cd77faaf45ee4d47c52f5daa68aa7ca10e754ae7bdd.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5096
- 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:2556

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
52KB

MD5
78500232f50e08f0c675bfc87bcc7c1b

SHA1
fed3fd0bf51859cb385fcc1b4cc786e50600e100

SHA256
525b2acef19827e6a107b27582d01e5d8e01abb0dec581ee43247d6c9ad196cd

SHA512
013652329fcd043c558b0debb2aa2fc20a4bd44851f342cb1c773a734daf7db70c050cfe35adafd2ad53ac69c8aba4091c52fa78dbc27ae2703b84fff9a6175b

Download Submit
memory/2556-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5096-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5096-4-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads