Malware Analysis Report

2024-08-06 11:02

Sample ID 240123-d3stwafdbq
Target de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4
SHA256 de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4
Tags
cobaltstrike 100000000 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

de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4

Threat Level: Known bad

The file de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4 was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 100000000 backdoor trojan

Cobaltstrike

Unsigned PE

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-23 03:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-23 03:32

Reported

2024-01-23 03:34

Platform

win7-20231215-en

Max time kernel

142s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4.exe

"C:\Users\Admin\AppData\Local\Temp\de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 login.microsoft.com.tw.global.prod.fastly.net udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp

Files

C:\Users\Admin\AppData\Local\Temp\Cab6598.tmp

MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

C:\Users\Admin\AppData\Local\Temp\Tar65CA.tmp

MD5 9c0c641c06238516f27941aa1166d427
SHA1 64cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512 936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

memory/1308-34-0x00000000004A0000-0x0000000000520000-memory.dmp

memory/1308-35-0x00000000050E0000-0x0000000005552000-memory.dmp

memory/1308-36-0x00000000004A0000-0x0000000000520000-memory.dmp

memory/1308-73-0x000000013F0B0000-0x000000013F0BE000-memory.dmp

memory/1308-150-0x00000000004A0000-0x0000000000520000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-23 03:32

Reported

2024-01-23 03:35

Platform

win10v2004-20231215-en

Max time kernel

152s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4.exe

"C:\Users\Admin\AppData\Local\Temp\de58e9b551d4259b016f6fbd67c6abeebb2a0c642b664dd023b3ba82ab4913d4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 login.microsoft.com.tw.global.prod.fastly.net udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 249.0.101.151.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
NL 52.142.223.178:80 tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 168.253.116.51.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp

Files

memory/2492-0-0x0000023405150000-0x00000234051D0000-memory.dmp

memory/2492-1-0x0000023405150000-0x00000234051D0000-memory.dmp

memory/2492-2-0x00000234051D0000-0x0000023405642000-memory.dmp

memory/2492-3-0x00007FF7E67F0000-0x00007FF7E67FE000-memory.dmp

memory/2492-5-0x0000023405150000-0x00000234051D0000-memory.dmp