Malware Analysis Report

2024-08-06 11:03

Sample ID 240123-d3stwagaf2
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

win7-20231129-en

Max time kernel

148s

Max time network

149s

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 www.microsoft.com 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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

C:\Users\Admin\AppData\Local\Temp\Tar13C4.tmp

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

memory/1936-36-0x0000000002380000-0x0000000002400000-memory.dmp

memory/1936-38-0x0000000004840000-0x0000000004CB2000-memory.dmp

memory/1936-37-0x0000000002380000-0x0000000002400000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

MD5 5f3294788c9436858a56201a3890bed9
SHA1 7d0fa35b479fce77cb0838da00f6c3eca2d03d4b
SHA256 28296c377728fa1535e060f5a81edf6eb7b25b8a3ff72956611894a2bed1df9f
SHA512 0ba359ca6a6a847bcf7ef8ac9e5cf248e6abdfe88793358d65769fdbbb4b3bbd161422e4f8b329e5fe0c90c88ffad09741ad916e133a20fcc64dee8dd9be84ec

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

MD5 a266bb7dcc38a562631361bbf61dd11b
SHA1 3b1efd3a66ea28b16697394703a72ca340a05bd5
SHA256 df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
SHA512 0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

memory/1936-87-0x000000013FB50000-0x000000013FB5E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-23 03:32

Reported

2024-01-23 03:34

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

149s

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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 249.0.101.151.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 196.249.167.52.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 8.8.8.8:53 209.205.72.20.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 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp
US 8.8.8.8:53 240.221.184.93.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 8.8.8.8:53 180.178.17.96.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 8.8.8.8:53 173.178.17.96.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 151.101.0.249:443 login.microsoft.com.tw.global.prod.fastly.net tcp

Files

memory/4444-0-0x000002773E110000-0x000002773E190000-memory.dmp

memory/4444-2-0x000002773E110000-0x000002773E190000-memory.dmp

memory/4444-1-0x000002773E190000-0x000002773E602000-memory.dmp

memory/4444-3-0x00007FF7AE890000-0x00007FF7AE89E000-memory.dmp

memory/4444-5-0x000002773E110000-0x000002773E190000-memory.dmp