216b71b42c7c05fe0c2e46b8153bde7d88439667a18a18289f8f99479048a2ec

Analysis

max time kernel
120s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/08/2024, 06:28

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General

Target

61b4c4bae662166a4d1c4115ce88fa20N.exe
Size

44KB
MD5

61b4c4bae662166a4d1c4115ce88fa20
SHA1

1e6afd1d895cd03bdb058ee5cee5abc19c5a170c
SHA256

216b71b42c7c05fe0c2e46b8153bde7d88439667a18a18289f8f99479048a2ec
SHA512

4d95a1d126b4b5aee3fcc0ff04b6c7f520f9a3006fd9350e72e734887646ab5c3b16b7f4cd42e4dffd174461b28a5fb44227feb5459e57ce1b69a9a83582cf40
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhd:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wY9

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4428	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4428	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	61b4c4bae662166a4d1c4115ce88fa20N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	61b4c4bae662166a4d1c4115ce88fa20N.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	61b4c4bae662166a4d1c4115ce88fa20N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 4428	756	61b4c4bae662166a4d1c4115ce88fa20N.exe	83
PID 756 wrote to memory of 4428	756	61b4c4bae662166a4d1c4115ce88fa20N.exe	83
PID 756 wrote to memory of 4428	756	61b4c4bae662166a4d1c4115ce88fa20N.exe	83

C:\Users\Admin\AppData\Local\Temp\61b4c4bae662166a4d1c4115ce88fa20N.exe
"C:\Users\Admin\AppData\Local\Temp\61b4c4bae662166a4d1c4115ce88fa20N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:756
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4428

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
44KB

MD5
1107ed1cb15b1573e3f5ef8cc56eedc7

SHA1
d12606496be93c2e63e9c0f13bbb6aa53430b444

SHA256
7d841d1ab8a55923946c90eb488cb2474a401e3068f372487d7cb9018a76b383

SHA512
2503e4f0d7038b585f40a37785268e4e8e398ea4dbeb8a911f463b241ed5c53b280cde249b5551c9b676deaea1e54e6b862862f768d49677c44275ddf1f1ecf4

Download Submit
memory/756-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/756-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4428-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads