Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-d62wysshnb
Target 2024-06-13_74bffae59c74f349bcaf1b22dafadea4_cryptolocker
SHA256 bfe9b1f5dedfdad7f13157d8aae85475bba1853fe5f9b271ceef76674bb867c2
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

bfe9b1f5dedfdad7f13157d8aae85475bba1853fe5f9b271ceef76674bb867c2

Threat Level: Known bad

The file 2024-06-13_74bffae59c74f349bcaf1b22dafadea4_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Executes dropped EXE

UPX packed file

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:38

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: behavioral2

Detonation Overview

Submitted

2024-06-13 03:38

Reported

2024-06-13 03:40

Platform

win10v2004-20240611-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_74bffae59c74f349bcaf1b22dafadea4_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

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_74bffae59c74f349bcaf1b22dafadea4_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_74bffae59c74f349bcaf1b22dafadea4_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_74bffae59c74f349bcaf1b22dafadea4_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=4040,i,7977653611488681184,6839495125838449898,262144 --variations-seed-version --mojo-platform-channel-handle=3024 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.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

Files

memory/3064-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/3064-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/3064-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/3064-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 8564c7876c0d485486dee24f2fdf025c
SHA1 1a1e8c1c168ba7dda3107c4c26f7506d39440224
SHA256 f8c944f2a49dd3a4a457d33023043a259d570511cc70fb85ddafdc760ad81486
SHA512 3fe15a017b2e178b9a0ef817f534e48d0cf3a340bd2a0075e87a284d6e707f1130cec1d14fe62cbb86cc906e588bfdec44666d5ccdcf503109a8cc266c3ec4b6

memory/3452-18-0x0000000000500000-0x000000000050F311-memory.dmp

memory/3064-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/3452-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/3452-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/3452-27-0x0000000000500000-0x000000000050F311-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:38

Reported

2024-06-13 03:40

Platform

win7-20240611-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_74bffae59c74f349bcaf1b22dafadea4_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
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
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
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_74bffae59c74f349bcaf1b22dafadea4_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_74bffae59c74f349bcaf1b22dafadea4_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_74bffae59c74f349bcaf1b22dafadea4_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 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
US 52.86.6.113:443 emrlogistics.com tcp
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/2216-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2216-1-0x0000000000420000-0x0000000000426000-memory.dmp

memory/2216-2-0x0000000000450000-0x0000000000456000-memory.dmp

memory/2216-9-0x0000000000420000-0x0000000000426000-memory.dmp

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

MD5 8564c7876c0d485486dee24f2fdf025c
SHA1 1a1e8c1c168ba7dda3107c4c26f7506d39440224
SHA256 f8c944f2a49dd3a4a457d33023043a259d570511cc70fb85ddafdc760ad81486
SHA512 3fe15a017b2e178b9a0ef817f534e48d0cf3a340bd2a0075e87a284d6e707f1130cec1d14fe62cbb86cc906e588bfdec44666d5ccdcf503109a8cc266c3ec4b6

memory/2216-13-0x0000000002120000-0x0000000002130000-memory.dmp

memory/2216-16-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2668-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2668-19-0x0000000000210000-0x0000000000216000-memory.dmp

memory/2668-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2668-27-0x0000000000500000-0x000000000050F311-memory.dmp