Malware Analysis Report

2024-11-16 12:23

Sample ID 240313-ftd1gafc86
Target c50e27b62190a06c1a169b7f501c086c
SHA256 6fbf1c09ae363a80d37516cf04df2ac2cb11b5fa51a6d43bed9f2cf09f32d78e
Tags
discovery exploit
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

6fbf1c09ae363a80d37516cf04df2ac2cb11b5fa51a6d43bed9f2cf09f32d78e

Threat Level: Likely malicious

The file c50e27b62190a06c1a169b7f501c086c was found to be: Likely malicious.

Malicious Activity Summary

discovery exploit

Possible privilege escalation attempt

Checks computer location settings

Modifies file permissions

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-13 05:09

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-13 05:09

Reported

2024-03-13 05:12

Platform

win7-20240221-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe"

Signatures

Possible privilege escalation attempt

exploit
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\LogonUI.exe C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\takeown.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe

"C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32 && icacls C:\Windows\System32 /grant "%username%:F"

C:\Windows\system32\takeown.exe

takeown /f C:\Windows\System32

C:\Windows\system32\icacls.exe

icacls C:\Windows\System32 /grant "Admin:F"

Network

N/A

Files

memory/2848-0-0x00000000008A0000-0x00000000008F0000-memory.dmp

memory/2848-1-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

memory/2848-2-0x000000001B080000-0x000000001B100000-memory.dmp

memory/2848-4-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-13 05:09

Reported

2024-03-13 05:12

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe"

Signatures

Possible privilege escalation attempt

exploit
Description Indicator Process Target
N/A N/A C:\Windows\system32\icacls.exe N/A
N/A N/A C:\Windows\system32\takeown.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe N/A

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\system32\takeown.exe N/A
N/A N/A C:\Windows\system32\icacls.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\LogonUI.exe C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\takeown.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe

"C:\Users\Admin\AppData\Local\Temp\c50e27b62190a06c1a169b7f501c086c.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32 && icacls C:\Windows\System32 /grant "%username%:F"

C:\Windows\system32\takeown.exe

takeown /f C:\Windows\System32

C:\Windows\system32\icacls.exe

icacls C:\Windows\System32 /grant "Admin:F"

Network

Country Destination Domain Proto
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 90.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 50.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp
GB 96.17.178.174:80 tcp

Files

memory/1556-0-0x0000000000B70000-0x0000000000BC0000-memory.dmp

memory/1556-1-0x00007FFA53940000-0x00007FFA54401000-memory.dmp

memory/1556-2-0x0000000002EE0000-0x0000000002EF0000-memory.dmp

memory/1556-5-0x00007FFA53940000-0x00007FFA54401000-memory.dmp