a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 01:00

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General

Target

a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe
Size

38KB
MD5

917213582fb09a640500d16fdd7dfb50
SHA1

c5fbc2c1af8770f90a006f161f8c63f1bd2abb66
SHA256

a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae
SHA512

4b74f34881c430a666026f5f78e6f2e10fb2eb48b7ea2ac7a9da3e3ccc733562805cabecf629d91e9df1aeffaf2f40e98e8a8c027a599212244b1aafbcb3364c
SSDEEP

768:/qPJtHA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhE:/qnA6C1VqaqhtgVRNToV7TtRu8rM0wYk

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2316	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2316	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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2316	2912	a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe	28
PID 2912 wrote to memory of 2316	2912	a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe	28
PID 2912 wrote to memory of 2316	2912	a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe	28
PID 2912 wrote to memory of 2316	2912	a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe	28

C:\Users\Admin\AppData\Local\Temp\a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe
"C:\Users\Admin\AppData\Local\Temp\a758bf51ac7815b6ee89b41afe9220a833754df7f9a646ffbd5e89df06e0e5ae.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2316

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
38KB

MD5
4502be5ddca0b7cc5e5a82be5405d52b

SHA1
b4d28639db939acf8092242c298a5609ef7b48e0

SHA256
c72d6a4ec7643645996f261deae4b55e8096d4deb90d1a2c8ff22e1bd806d771

SHA512
2c9bd14eee44d82f2b3d2d6bac50c3483935161fa17e4bc871c1c0022c8caef3e9bc63cbf16d8d620dd6774b3d668ae49d8c25eb800fe5ea352ce90a24bd9e35

Download Submit
memory/2316-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2912-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads