5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 21:41

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General

Target

5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe
Size

33KB
MD5

62fe77333393678f9b7f678d7956e228
SHA1

8bbdfb70e8c7663517340607bcb175532984f76b
SHA256

5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256
SHA512

6f66afc6361eab92a5b35cd0f698ebd434caa78beaee9abdc448c03d50686dd09e2b4225e130a2441556184582dd94e552881c41ac4aaf029f83711f411c5484
SSDEEP

768:/qPJtHA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhQ:/qnA6C1VqaqhtgVRNToV7TtRu8rM0wYw

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

microsofthelp.exe

pid process

1844 microsofthelp.exe
Executes dropped EXE 1 IoCs

Processes:

microsofthelp.exe

pid process

1844 microsofthelp.exe

pid	process
1844	microsofthelp.exe

pid	process
1844	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe

Drops file in Windows directory 1 IoCs

Processes:

5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe

description ioc process

File created C:\Windows\microsofthelp.exe 5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe

description	ioc	process
File created	C:\Windows\microsofthelp.exe	5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe

description	pid	process	target process
PID 436 wrote to memory of 1844	436	5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe	microsofthelp.exe
PID 436 wrote to memory of 1844	436	5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe	microsofthelp.exe
PID 436 wrote to memory of 1844	436	5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe	microsofthelp.exe

C:\Users\Admin\AppData\Local\Temp\5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe
"C:\Users\Admin\AppData\Local\Temp\5240f9fd3b4c54c99f4a4bee279c7db2f5fb50b15fba7d46cd877af85152b256.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:436

C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
2⤵
- Deletes itself
- Executes dropped EXE
PID:1844

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\microsofthelp.exe
Filesize
33KB

MD5
b7582f3a892bba5532d0d0eada2e5128

SHA1
69babc6ccd8d89351091fb343b6bcc28dfc0b321

SHA256
4e5b069b3fcd4abc84414e3edffaa77daea6c1cb2aa9bda6383212ee0512c39b

SHA512
0a2369de344a8e667981413ceebf304754baa50ef41d85fa694239fb0211d2e4b8f76891e7879edabd21a991b047b51f361b972ab766a1ef1e3eed03b3d88c74

Download Submit
memory/436-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1844-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download