ad8e686bd21924dfa757f3538b6c1df07944b955f2315b91d6d2298c0c911424

Analysis

max time kernel
136s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
07/06/2024, 18:40

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General

Target
c4f0ad50a5a82fe65d8ae2f90af1da2c/c4f0ad50a5a82fe65d8ae2f90af1da2c.exe
Size 130KB
Sample240607-xbbwtsda42
SHA256 f4a4f9aa0ebcf6e7b542b2cad7055aa9220e282ee8dd7fe239e61636a4307dad
MD5 c4f0ad50a5a82fe65d8ae2f90af1da2c
SHA1 2310252e111a73829924c7be6c3873f05550b95c
SHA512 6249a2b19073203ea3dfcb0f38e935f0a7a1ed5c83db9d347235ebe78e67f939a8e63e4d14d9c2651d75d0cbee954aaa54eb95366d614c1d34754a9ae9b907ab
SSDEEP 3072:l9RmHzd/EtzAAk1rIASuLRTWzWV1oqCgQfBUnPy8LWVBBhj:l90dEt8AKrTLRT2WV1oqCgQfBUPy8LWL
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b227d6b7.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b227d6b = "C:\\b227d6b7\\b227d6b7.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\*227d6b = "C:\\b227d6b7\\b227d6b7.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b227d6b7 = "C:\\Users\\Admin\\AppData\\Roaming\\b227d6b7.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\*227d6b7 = "C:\\Users\\Admin\\AppData\\Roaming\\b227d6b7.exe"	explorer.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	ip-addr.es
16	ip-addr.es

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
964	c4f0ad50a5a82fe65d8ae2f90af1da2c.exe
1988	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 1988	964	c4f0ad50a5a82fe65d8ae2f90af1da2c.exe	82
PID 964 wrote to memory of 1988	964	c4f0ad50a5a82fe65d8ae2f90af1da2c.exe	82
PID 964 wrote to memory of 1988	964	c4f0ad50a5a82fe65d8ae2f90af1da2c.exe	82
PID 1988 wrote to memory of 2672	1988	explorer.exe	86
PID 1988 wrote to memory of 2672	1988	explorer.exe	86
PID 1988 wrote to memory of 2672	1988	explorer.exe	86

C:\Users\Admin\AppData\Local\Temp\c4f0ad50a5a82fe65d8ae2f90af1da2c\c4f0ad50a5a82fe65d8ae2f90af1da2c.exe
"C:\Users\Admin\AppData\Local\Temp\c4f0ad50a5a82fe65d8ae2f90af1da2c\c4f0ad50a5a82fe65d8ae2f90af1da2c.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:964
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\syswow64\explorer.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1988
- - C:\Windows\SysWOW64\svchost.exe
    -k netsvcs
    3⤵
    PID:2672

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

memory/1988-0-0x0000000000620000-0x0000000000645000-memory.dmp

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memory/1988-2-0x0000000000620000-0x0000000000645000-memory.dmp

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memory/2672-5-0x0000000000880000-0x00000000008A5000-memory.dmp

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memory/2672-6-0x0000000000880000-0x00000000008A5000-memory.dmp

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memory/2672-23-0x0000000000880000-0x00000000008A5000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads