d61abb9ba12157b3eb244f3d5a3e3c76a1a0aa96622f7ee442c847d0ca123006

Analysis

max time kernel
119s
max time network
18s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
18/08/2024, 03:27

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General

Target

39b145b30a656c267bca58431cee1cc0N.exe
Size

43KB
MD5

39b145b30a656c267bca58431cee1cc0
SHA1

b945b743dcfc66a1047312d49ae9fc295fdce5bb
SHA256

d61abb9ba12157b3eb244f3d5a3e3c76a1a0aa96622f7ee442c847d0ca123006
SHA512

21b1d6ffb41b25fe34a5e1289a0ac4e06cc48564cd29a3820d9556b77f8a31322e38720008293dd9c3407a4185d52c98e1086bd7f28b12a3924055202f159370
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhL:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYr

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2540	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2540	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-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	39b145b30a656c267bca58431cee1cc0N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	39b145b30a656c267bca58431cee1cc0N.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	39b145b30a656c267bca58431cee1cc0N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2540	2180	39b145b30a656c267bca58431cee1cc0N.exe	29
PID 2180 wrote to memory of 2540	2180	39b145b30a656c267bca58431cee1cc0N.exe	29
PID 2180 wrote to memory of 2540	2180	39b145b30a656c267bca58431cee1cc0N.exe	29
PID 2180 wrote to memory of 2540	2180	39b145b30a656c267bca58431cee1cc0N.exe	29

C:\Users\Admin\AppData\Local\Temp\39b145b30a656c267bca58431cee1cc0N.exe
"C:\Users\Admin\AppData\Local\Temp\39b145b30a656c267bca58431cee1cc0N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2540

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
43KB

MD5
d4855cfcd013aa41268bd44247f32c7a

SHA1
307e576b0ae757ca0d64731b6d7423bdda6be8e9

SHA256
500cf802b5142c1966b628c8fc9d7da02190d298b4c30ba73d98ada7441dcff0

SHA512
7acff90ebb34c42f1cad1330e6973e1254774a06c05c62122ef22b8228f20addbf05aa108ca68ef6454ba4d845daba3a968129ace9f2d3f57eb8a913f9c761ee

Download Submit
memory/2180-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2180-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2540-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2540-10-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads