Malware Analysis Report

2024-08-06 07:55

Sample ID 231104-ybn2tsdf61
Target d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719
SHA256 d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719
Tags
cobaltstrike 1359593325 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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
10/10

SHA256

d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719

Threat Level: Known bad

The file d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719 was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 1359593325 backdoor trojan

Cobaltstrike

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2023-11-04 19:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-04 19:36

Reported

2023-11-04 19:39

Platform

win7-20231023-en

Max time kernel

144s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719.exe

"C:\Users\Admin\AppData\Local\Temp\d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719.exe"

Network

Country Destination Domain Proto
NL 192.236.146.5:80 tcp
NL 192.236.146.5:80 tcp
NL 192.236.146.5:80 tcp
NL 192.236.146.5:80 tcp

Files

memory/1036-1-0x0000000000400000-0x0000000000458000-memory.dmp

memory/1036-0-0x00000000002B0000-0x00000000002B7000-memory.dmp

memory/1036-2-0x0000000000400000-0x0000000000458000-memory.dmp

memory/1036-3-0x0000000001FF0000-0x0000000002023000-memory.dmp

memory/1036-4-0x0000000002030000-0x000000000206D000-memory.dmp

memory/1036-5-0x0000000000400000-0x0000000000458000-memory.dmp

memory/1036-6-0x0000000074970000-0x00000000749BE000-memory.dmp

memory/1036-7-0x00000000002B0000-0x00000000002B7000-memory.dmp

memory/1036-8-0x0000000002030000-0x000000000206D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-04 19:36

Reported

2023-11-04 19:39

Platform

win10v2004-20231020-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeManageVolumePrivilege N/A C:\Windows\System32\svchost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719.exe

"C:\Users\Admin\AppData\Local\Temp\d7ef577360f44cd1367b33fe690094ac7d09d03f8bedaf7d176589953b3f2719.exe"

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k UnistackSvcGroup

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 163.252.72.23.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 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
NL 192.236.146.5:80 tcp
US 8.8.8.8:53 135.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 126.178.238.8.in-addr.arpa udp
US 8.8.8.8:53 83.98.62.23.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 8.8.8.8:53 192.240.110.104.in-addr.arpa udp
US 8.8.8.8:53 126.210.247.8.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
NL 192.236.146.5:80 tcp
US 8.8.8.8:53 73.239.69.13.in-addr.arpa udp

Files

memory/3580-1-0x0000000000A50000-0x0000000000A57000-memory.dmp

memory/3580-0-0x0000000000400000-0x0000000000458000-memory.dmp

memory/3580-2-0x0000000000400000-0x0000000000458000-memory.dmp

memory/3580-3-0x00000000025A0000-0x00000000025D3000-memory.dmp

memory/3580-4-0x00000000025E0000-0x000000000261D000-memory.dmp

memory/3580-5-0x0000000000A50000-0x0000000000A57000-memory.dmp

memory/3580-6-0x0000000000400000-0x0000000000458000-memory.dmp

memory/3580-8-0x0000000074FA0000-0x000000007500A000-memory.dmp

memory/3580-9-0x00000000025E0000-0x000000000261D000-memory.dmp

memory/3232-30-0x0000023BA5940000-0x0000023BA5950000-memory.dmp

memory/3232-46-0x0000023BA5A40000-0x0000023BA5A50000-memory.dmp

memory/3232-62-0x0000023BAF000000-0x0000023BAF001000-memory.dmp

memory/3232-63-0x0000023BAF030000-0x0000023BAF031000-memory.dmp

memory/3232-64-0x0000023BAF030000-0x0000023BAF031000-memory.dmp

memory/3232-65-0x0000023BAF030000-0x0000023BAF031000-memory.dmp

memory/3232-66-0x0000023BAF030000-0x0000023BAF031000-memory.dmp

memory/3232-67-0x0000023BAF030000-0x0000023BAF031000-memory.dmp

memory/3232-68-0x0000023BAF030000-0x0000023BAF031000-memory.dmp

memory/3232-69-0x0000023BAF030000-0x0000023BAF031000-memory.dmp

C:\Users\Admin\AppData\Local\Comms\UnistoreDB\store.jfm

MD5 7bb961600ee2a993d9d4f80ef7431dd0
SHA1 5c4e17b8868ae0edc707cc7f9c60ed2896430b20
SHA256 d937cfb4e703ca9b5c9566268e881a397628139c9a28b6458a28ee044fb0b11c
SHA512 ae84f8d62e9e1dbf7b30c6a21893f2749645d082643e137fd8b382233461093d9c34790b4b01bc6b094c063cc761b296261f293e4db3d1102692fad777dcd27b