420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3f

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 10:09

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General

Target

420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe
Size

39KB
MD5

a41eca336ef506c937d1e05d3bc312f0
SHA1

13ed5221d6baa41205d6c341dbe14bf4d410a46c
SHA256

420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3f
SHA512

f831561d097a7d108983ba17d602e8047cf2a442f7ace86e7205934775feea7f8f20baeb0a74d9b96e6a3c995ce3ab31dde024278507d3f6f876676b2064503e
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjUvJjWHf:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gi

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2544	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2544	2404	420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe	30
PID 2404 wrote to memory of 2544	2404	420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe	30
PID 2404 wrote to memory of 2544	2404	420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe	30
PID 2404 wrote to memory of 2544	2404	420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe	30

C:\Users\Admin\AppData\Local\Temp\420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe
"C:\Users\Admin\AppData\Local\Temp\420d8afd2732b14910b30f3a6d61dcb3160d8612a56861713ef7bafc8c186b3fN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:2544

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
a759dc13e312fa9e806d12a29d5abb27

SHA1
f6702b3c2fe77cdb98898286b1a6ae629724120f

SHA256
e8de159a2955a0148689d92d0935126628bcfaa745060413f0a5ed5142fb4b53

SHA512
38240ceaa63c2cbdedb9eb115b64def984a3194becbde0d0733af2e6b76d42ca141c4a9351c6e823c801cc5652276cc7ad76875ac934ab690678693b7583cd72

Download Submit
memory/2404-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2404-3-0x0000000000220000-0x000000000022E000-memory.dmp

Filesize
56KB

Download
memory/2404-9-0x0000000000220000-0x000000000022E000-memory.dmp

Filesize
56KB

Download
memory/2404-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2544-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2544-13-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads