Malware Analysis Report

2025-01-18 14:04

Sample ID 240613-cvyjqa1dmh
Target 2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_cryptolocker
SHA256 c93bbd33633c7febcaa99ddf9b844314cff1f8afa1a023da3cb6ce63ed7b1427
Tags
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

c93bbd33633c7febcaa99ddf9b844314cff1f8afa1a023da3cb6ce63ed7b1427

Threat Level: Known bad

The file 2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Executes dropped EXE

Loads dropped DLL

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 02:24

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 02:24

Reported

2024-06-13 02:27

Platform

win7-20240611-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_cryptolocker.exe"

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

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_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_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 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp

Files

memory/1696-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1696-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1696-1-0x0000000000300000-0x0000000000306000-memory.dmp

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

MD5 623a5a4df126467de569c585c0d96da4
SHA1 c6aabb372298d0425e93755a32880bef35c0e0e0
SHA256 2a9ff92940b177389fceebdc13d09a0ea937b259cac4447397cf263abb41491a
SHA512 328a308ad5302414a64751e49ab490c9fe891b1751b4920d574dca87b617757ea8890bc20232aea832482f87b6ca1d224b122b469f4fff191c4e4e992ae45b9b

memory/2632-22-0x00000000003B0000-0x00000000003B6000-memory.dmp

memory/2632-15-0x0000000000410000-0x0000000000416000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 02:24

Reported

2024-06-13 02:27

Platform

win10v2004-20240611-en

Max time kernel

133s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_cryptolocker.exe"

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

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_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_dcb07ee7f4f5a3e50d6f0355bc0c1d7d_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=4304,i,12594301322143882025,16832588342008839449,262144 --variations-seed-version --mojo-platform-channel-handle=4296 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.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

Files

memory/2044-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2044-2-0x0000000000660000-0x0000000000666000-memory.dmp

memory/2044-1-0x0000000000660000-0x0000000000666000-memory.dmp

memory/2044-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

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

MD5 623a5a4df126467de569c585c0d96da4
SHA1 c6aabb372298d0425e93755a32880bef35c0e0e0
SHA256 2a9ff92940b177389fceebdc13d09a0ea937b259cac4447397cf263abb41491a
SHA512 328a308ad5302414a64751e49ab490c9fe891b1751b4920d574dca87b617757ea8890bc20232aea832482f87b6ca1d224b122b469f4fff191c4e4e992ae45b9b

memory/3408-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/3408-17-0x0000000000750000-0x0000000000756000-memory.dmp