Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-eavcnstapd
Target 2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker
SHA256 da1a67016501ab8a2059d18bc70ed171c6c3020477eeb9587e9bd48e46070a22
Tags
upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

da1a67016501ab8a2059d18bc70ed171c6c3020477eeb9587e9bd48e46070a22

Threat Level: Known bad

The file 2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Loads dropped DLL

UPX packed file

Executes dropped EXE

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:44

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

UPX packed file

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:44

Reported

2024-06-13 03:47

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\asih.exe N/A

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp

Files

memory/2896-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2896-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2896-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2896-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 bd9a5d8f2f0e5daca27628efaeddaf1c
SHA1 8588024dfb9964ca2246b935b88f6a9045182dea
SHA256 258029bc2cfb910f2401f7ea0aad4ed4ee5660c4c877d82b2d6d343dc34806c7
SHA512 ede3125db5973d79daf74c78ec3c4d5c1d4a71dd05b53a1c635387b8cb27f4bed309410de90e7878d76938b801627eb000aa75abc15c3fba6d8fbd7ecd3c0a42

memory/2896-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1912-21-0x00000000020F0000-0x00000000020F6000-memory.dmp

memory/1912-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/1912-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:44

Reported

2024-06-13 03:47

Platform

win7-20240220-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\asih.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe N/A

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_409598dd5fac8f2191e8949cc575df5d_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp

Files

memory/1992-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1992-1-0x0000000000420000-0x0000000000426000-memory.dmp

memory/1992-3-0x0000000000460000-0x0000000000466000-memory.dmp

memory/1992-9-0x0000000076E60000-0x0000000077009000-memory.dmp

\Users\Admin\AppData\Local\Temp\asih.exe

MD5 bd9a5d8f2f0e5daca27628efaeddaf1c
SHA1 8588024dfb9964ca2246b935b88f6a9045182dea
SHA256 258029bc2cfb910f2401f7ea0aad4ed4ee5660c4c877d82b2d6d343dc34806c7
SHA512 ede3125db5973d79daf74c78ec3c4d5c1d4a71dd05b53a1c635387b8cb27f4bed309410de90e7878d76938b801627eb000aa75abc15c3fba6d8fbd7ecd3c0a42

memory/1992-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1992-14-0x00000000005A0000-0x00000000005B0000-memory.dmp

memory/2524-19-0x0000000000350000-0x0000000000356000-memory.dmp

memory/2524-27-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2524-26-0x0000000076E60000-0x0000000077009000-memory.dmp