Malware Analysis Report

2025-06-16 07:26

Sample ID 240602-fd79dabe4x
Target 2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_cryptolocker
SHA256 d10cdad7b7bf53417dd9b3675d13bedf80229c5d54b850fba371de96bd5b5a74
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

d10cdad7b7bf53417dd9b3675d13bedf80229c5d54b850fba371de96bd5b5a74

Threat Level: Known bad

The file 2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Checks computer location settings

Loads dropped DLL

UPX packed file

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-02 04:46

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

2024-06-02 04:46

Reported

2024-06-02 04:49

Platform

win7-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_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\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_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\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_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 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp

Files

memory/2180-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2180-2-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2180-3-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2180-1-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 252b9c3189d0cf22859610619a3b8383
SHA1 ae71becd4696030911c20595f12fce098e3a96fc
SHA256 1bb721188e60d9016eeb2190b71fd0240f41b43ab2042525e38619faf94a0adc
SHA512 ab269186d0e6cf5ac0db03166893c492a31dc0e0341a0d956a3642a978ce74929b4d09e8de027e2759fbb54eda0a6e1d1f57df0797045a36cbc222ac86470dd9

memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2896-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2896-25-0x0000000000340000-0x0000000000346000-memory.dmp

memory/2896-18-0x0000000000380000-0x0000000000386000-memory.dmp

memory/2896-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 04:46

Reported

2024-06-02 04:49

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_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\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_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 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp

Files

memory/2468-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2468-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2468-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/2468-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

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

MD5 252b9c3189d0cf22859610619a3b8383
SHA1 ae71becd4696030911c20595f12fce098e3a96fc
SHA256 1bb721188e60d9016eeb2190b71fd0240f41b43ab2042525e38619faf94a0adc
SHA512 ab269186d0e6cf5ac0db03166893c492a31dc0e0341a0d956a3642a978ce74929b4d09e8de027e2759fbb54eda0a6e1d1f57df0797045a36cbc222ac86470dd9

memory/2468-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/776-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/776-25-0x0000000000560000-0x0000000000566000-memory.dmp

memory/776-26-0x0000000000500000-0x0000000000510000-memory.dmp