Malware Analysis Report

2025-01-18 12:51

Sample ID 240613-d3hnxawfmk
Target 2024-06-13_4716da0e36dd7220ba15f19456245e4d_cryptolocker
SHA256 c1ee36d6bcdb22b7bdd3bc7aefba9d2bdf94cebe0b12f06e27e78a0ee9cd2134
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

c1ee36d6bcdb22b7bdd3bc7aefba9d2bdf94cebe0b12f06e27e78a0ee9cd2134

Threat Level: Known bad

The file 2024-06-13_4716da0e36dd7220ba15f19456245e4d_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

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 03:31

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 03:31

Reported

2024-06-13 03:34

Platform

win7-20240220-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4716da0e36dd7220ba15f19456245e4d_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

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_4716da0e36dd7220ba15f19456245e4d_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_4716da0e36dd7220ba15f19456245e4d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4716da0e36dd7220ba15f19456245e4d_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 3.140.13.188:443 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
US 18.119.154.66:443 emrlogistics.com tcp

Files

memory/2192-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2192-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2192-2-0x0000000000460000-0x0000000000466000-memory.dmp

memory/2192-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 3b3859ae61535127d864a25dbcb849d1
SHA1 26b57962685e271d9d9747ffe581d0a4ea243a46
SHA256 05c15cc886efa5f3a61f45742e53fe4c35948d1c3d58cadf54ecd68a4e31f16d
SHA512 d580ec2f0783dd40dd74e4edb6e0681c60ec3855208c36c69cdb1c921759b0e471a61b604e925768dcdb68233e58d91d05a8e4679bc2b7802762d9587d4d8f91

memory/2192-15-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1728-25-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1728-24-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1728-17-0x0000000000290000-0x0000000000296000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:31

Reported

2024-06-13 03:34

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4716da0e36dd7220ba15f19456245e4d_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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_4716da0e36dd7220ba15f19456245e4d_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_4716da0e36dd7220ba15f19456245e4d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4716da0e36dd7220ba15f19456245e4d_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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/4720-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4720-1-0x0000000002140000-0x0000000002146000-memory.dmp

memory/4720-2-0x0000000002050000-0x0000000002056000-memory.dmp

memory/4720-9-0x0000000002140000-0x0000000002146000-memory.dmp

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

MD5 3b3859ae61535127d864a25dbcb849d1
SHA1 26b57962685e271d9d9747ffe581d0a4ea243a46
SHA256 05c15cc886efa5f3a61f45742e53fe4c35948d1c3d58cadf54ecd68a4e31f16d
SHA512 d580ec2f0783dd40dd74e4edb6e0681c60ec3855208c36c69cdb1c921759b0e471a61b604e925768dcdb68233e58d91d05a8e4679bc2b7802762d9587d4d8f91

memory/4720-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3228-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3228-21-0x0000000000750000-0x0000000000756000-memory.dmp

memory/3228-27-0x0000000000620000-0x0000000000626000-memory.dmp

memory/3228-28-0x0000000000500000-0x0000000000510000-memory.dmp