Malware Analysis Report

2024-08-06 11:03

Sample ID 240127-z4w4kseack
Target test123.exe
SHA256 cbd30064862c3394ca5b660cb7a9e4ea8a5379cf2192b9e6747548163435ed39
Tags
cobaltstrike 0 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

cbd30064862c3394ca5b660cb7a9e4ea8a5379cf2192b9e6747548163435ed39

Threat Level: Known bad

The file test123.exe was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 0 100000000 backdoor trojan

Cobaltstrike

Unsigned PE

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-27 21:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-27 21:16

Reported

2024-01-27 21:19

Platform

win7-20231129-en

Max time kernel

122s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\test123.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\test123.exe

"C:\Users\Admin\AppData\Local\Temp\test123.exe"

Network

Country Destination Domain Proto
HK 156.245.19.127:8082 156.245.19.127 tcp
HK 156.245.19.127:443 156.245.19.127 tcp
US 8.8.8.8:53 www.microsoft.com udp
HK 156.245.19.127:443 156.245.19.127 tcp

Files

memory/1720-0-0x000007FEBDA60000-0x000007FEBDA70000-memory.dmp

memory/1720-1-0x0000000000380000-0x00000000003C1000-memory.dmp

memory/1720-2-0x0000000003A40000-0x0000000003EB2000-memory.dmp

memory/1720-3-0x000007FEFDA70000-0x000007FEFDADC000-memory.dmp

memory/1720-16-0x000007FEFDA70000-0x000007FEFDADC000-memory.dmp

memory/1720-17-0x0000000003A40000-0x0000000003EB2000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

C:\Users\Admin\AppData\Local\Temp\TarA826.tmp

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

memory/1720-43-0x0000000003A40000-0x0000000003EB2000-memory.dmp

memory/1720-46-0x000007FEFDA70000-0x000007FEFDADC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-27 21:16

Reported

2024-01-27 21:19

Platform

win10v2004-20231222-en

Max time kernel

116s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\test123.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\test123.exe

"C:\Users\Admin\AppData\Local\Temp\test123.exe"

Network

Country Destination Domain Proto
HK 156.245.19.127:8082 156.245.19.127 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 127.19.245.156.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
HK 156.245.19.127:443 156.245.19.127 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
HK 156.245.19.127:443 156.245.19.127 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
HK 156.245.19.127:443 156.245.19.127 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 198.178.17.96.in-addr.arpa udp
HK 156.245.19.127:443 156.245.19.127 tcp

Files

memory/4912-0-0x00007FFA91570000-0x00007FFA91580000-memory.dmp

memory/4912-1-0x0000017582B20000-0x0000017582B61000-memory.dmp

memory/4912-2-0x0000017582B70000-0x0000017582FE2000-memory.dmp

memory/4912-5-0x0000017582B70000-0x0000017582FE2000-memory.dmp

memory/4912-7-0x0000017582B70000-0x0000017582FE2000-memory.dmp

memory/4912-9-0x0000017582B70000-0x0000017582FE2000-memory.dmp