Malware Analysis Report

2025-01-18 14:34

Sample ID 240613-edv4daxapn
Target 2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker
SHA256 b335c2a40e33f28f6155743c330b5fd322b6516d41764f504ef2e9398e425a2b
Tags
upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

b335c2a40e33f28f6155743c330b5fd322b6516d41764f504ef2e9398e425a2b

Threat Level: Known bad

The file 2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

UPX packed file

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:49

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: behavioral1

Detonation Overview

Submitted

2024-06-13 03:49

Reported

2024-06-13 03:52

Platform

win7-20240220-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_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_c978b0f40e49aeed30e93ec78c769fb7_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_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_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 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp

Files

memory/840-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/840-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/840-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/840-2-0x0000000000290000-0x0000000000296000-memory.dmp

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

MD5 15b77aedc1fc0dfa22eecdd14c3cc732
SHA1 31496c81922ea11eab2020a633294d5f937a31ff
SHA256 e7b8cc3d361a9a32f8a7220137f30ebf17a97dd6171bb2b8f38692e42309c5e8
SHA512 9bb84327d2ed0fbbf50a3ff92009afd4c2ea886a8d8a9d4f026a54fbf1a7edf3098e8b1d32ac1122ebd01c8729c30560c0623a6cafac623fcf35531bdf247667

memory/2176-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/840-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2176-26-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2176-19-0x0000000000480000-0x0000000000486000-memory.dmp

memory/2176-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:49

Reported

2024-06-13 03:52

Platform

win10v2004-20240226-en

Max time kernel

151s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_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_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4072 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
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 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.187.234:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 234.187.250.142.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 28.173.189.20.in-addr.arpa udp

Files

memory/3532-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3532-1-0x0000000000620000-0x0000000000626000-memory.dmp

memory/3532-2-0x0000000000620000-0x0000000000626000-memory.dmp

memory/3532-3-0x0000000000760000-0x0000000000766000-memory.dmp

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

MD5 15b77aedc1fc0dfa22eecdd14c3cc732
SHA1 31496c81922ea11eab2020a633294d5f937a31ff
SHA256 e7b8cc3d361a9a32f8a7220137f30ebf17a97dd6171bb2b8f38692e42309c5e8
SHA512 9bb84327d2ed0fbbf50a3ff92009afd4c2ea886a8d8a9d4f026a54fbf1a7edf3098e8b1d32ac1122ebd01c8729c30560c0623a6cafac623fcf35531bdf247667

memory/3532-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4684-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/4684-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/4684-27-0x0000000000500000-0x0000000000510000-memory.dmp