4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3

Analysis

max time kernel
120s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-09-2024 18:17

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General

Target

4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe
Size

62KB
MD5

b18fc8d914b3da6e59ffd53163e9edf0
SHA1

74f463317e9664039da639e3f100a801a8fb6093
SHA256

4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3
SHA512

57022cab2b31ea00204467eed87dbf7d86be0667299c0a50334a412675b0114b52f709fb6a4a3db81848268dd654b30a949b4cb6517301a51de254df6e372b51
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhI2:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVI

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3540	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3540	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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.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	4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 3540	3896	4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe	84
PID 3896 wrote to memory of 3540	3896	4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe	84
PID 3896 wrote to memory of 3540	3896	4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe	84

C:\Users\Admin\AppData\Local\Temp\4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe
"C:\Users\Admin\AppData\Local\Temp\4a98c5440d41c37976ea1c316a0e48734a59f9a9ab6e4d18bdbd0e5af6fc52f3N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3896
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3540

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
62KB

MD5
d5c754bb6afbefc9489e02bdb043244f

SHA1
41ab67a969917c2e9deadc9d02c63faa5dcf00ab

SHA256
48d84e8fa6c62b739e2803f29472d60c522c2b4b57cc95fad348c84c9190ff6e

SHA512
cdcd2830195f13cc79646ec021b2a2125e13a8643f3758493fed10018cba50823981ad5b5fdee787df5298da33a69eb47a997196866e313321ac329e591b45aa

Download Submit
memory/3540-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3540-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3896-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3896-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads