Malware Analysis Report

2025-01-18 14:34

Sample ID 240613-d3159asgmd
Target 2024-06-13_4cbb032e665826db35c307cd427bec9b_cryptolocker
SHA256 075dde6d1e6303b1fcd94d04372db24d445a7db3fff29372f8b809fa7703154e
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

075dde6d1e6303b1fcd94d04372db24d445a7db3fff29372f8b809fa7703154e

Threat Level: Known bad

The file 2024-06-13_4cbb032e665826db35c307cd427bec9b_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)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Checks computer location settings

UPX packed file

Executes dropped EXE

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:32

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

Description Indicator Process Target
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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:32

Reported

2024-06-13 03:35

Platform

win7-20240611-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4cbb032e665826db35c307cd427bec9b_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_4cbb032e665826db35c307cd427bec9b_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_4cbb032e665826db35c307cd427bec9b_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4cbb032e665826db35c307cd427bec9b_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 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp

Files

memory/1252-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1252-1-0x0000000000300000-0x0000000000306000-memory.dmp

memory/1252-3-0x0000000000490000-0x0000000000496000-memory.dmp

memory/1252-2-0x0000000000300000-0x0000000000306000-memory.dmp

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

MD5 ea0e2e1077eab168e6bc32ceb3ed2e9c
SHA1 708903d54d0a78a8f63943feb7a4c209a552d585
SHA256 73a85483dc770499524dbbe80a24bbd07781d797c52f56c9bf56fb5225106ad6
SHA512 3b1cf71f968f060d7ce2766830a80f757dcddc6a2bb52d66eb3747267302cc9dffd600997504ed0f8078bfda428df52c5a2851fe1185f56fdc49caecd55b8e88

memory/2652-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1252-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2652-23-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2652-18-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/2652-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:32

Reported

2024-06-13 03:35

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4cbb032e665826db35c307cd427bec9b_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-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_4cbb032e665826db35c307cd427bec9b_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_4cbb032e665826db35c307cd427bec9b_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4cbb032e665826db35c307cd427bec9b_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 --field-trial-handle=3044,i,12594301322143882025,16832588342008839449,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp

Files

memory/4148-2-0x0000000002110000-0x0000000002116000-memory.dmp

memory/4148-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/4148-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4148-9-0x00000000004F0000-0x00000000004F6000-memory.dmp

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

MD5 ea0e2e1077eab168e6bc32ceb3ed2e9c
SHA1 708903d54d0a78a8f63943feb7a4c209a552d585
SHA256 73a85483dc770499524dbbe80a24bbd07781d797c52f56c9bf56fb5225106ad6
SHA512 3b1cf71f968f060d7ce2766830a80f757dcddc6a2bb52d66eb3747267302cc9dffd600997504ed0f8078bfda428df52c5a2851fe1185f56fdc49caecd55b8e88

memory/4148-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2292-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2292-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2292-26-0x0000000000500000-0x0000000000510000-memory.dmp