4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3

Analysis

max time kernel
119s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 08:16

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General

Target

4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe
Size

46KB
MD5

ffa2770bb277264621a54d8d59e8c410
SHA1

8f468e2d06f11bc3e2706cef53c95448feead4a3
SHA256

4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3
SHA512

acdecf8dd36cc1ae93ff2118a811a622b9d49ac8fd4307ef9ebbdc398cc906aee9ac20ed6c4873eefdfe94d3cc0f0d96d817d835861d4e3bbe5156f337c71360
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNh0:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYU

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2008	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2008	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.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	4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2008	2364	4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe	30
PID 2364 wrote to memory of 2008	2364	4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe	30
PID 2364 wrote to memory of 2008	2364	4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe	30
PID 2364 wrote to memory of 2008	2364	4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe	30

C:\Users\Admin\AppData\Local\Temp\4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe
"C:\Users\Admin\AppData\Local\Temp\4b21d85e30eaa0ecc9af17a0a45363b6205737d43993dba8cf8e06f295fa45c3N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:2008

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
47KB

MD5
728d0c3c2f1f0bb5ab75556c216d274f

SHA1
72005a66e8f98aa948e320ccbb80a1dcd2ab6afd

SHA256
8514ee1471bebbd37dfbe11c66bb026a360d4c31ecfac5cc37127e2fb4960720

SHA512
8c95e5f967fec77032febcefcb991d4c243dd3cbc4bdd5c501dadaac747562e55560c3255612784253cd6e33e0e0aa9688f11e62249141dfde68f0f5bdcec7a5

Download Submit
memory/2008-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2364-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2364-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads