Malware Analysis Report

2024-11-15 08:52

Sample ID 230226-q79peaha88
Target tmp
SHA256 1fe0daa8e8374c77b7bf90a48e1c9d309cdc686cca84441a84957cedbf039c70
Tags
purecrypter downloader loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

1fe0daa8e8374c77b7bf90a48e1c9d309cdc686cca84441a84957cedbf039c70

Threat Level: Known bad

The file tmp was found to be: Known bad.

Malicious Activity Summary

purecrypter downloader loader

PureCrypter

Purecrypter family

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-02-26 13:55

Signatures

Purecrypter family

purecrypter

Analysis: behavioral1

Detonation Overview

Submitted

2023-02-26 13:55

Reported

2023-02-26 13:57

Platform

win7-20230220-en

Max time kernel

142s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\tmp.exe"

Signatures

PureCrypter

loader downloader purecrypter

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Processes

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

"C:\Users\Admin\AppData\Local\Temp\tmp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 revitape.com udp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp

Files

memory/848-54-0x00000000001A0000-0x00000000001BC000-memory.dmp

memory/848-55-0x0000000004630000-0x0000000004670000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-02-26 13:55

Reported

2023-02-26 13:57

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\tmp.exe"

Signatures

PureCrypter

loader downloader purecrypter

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Processes

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

"C:\Users\Admin\AppData\Local\Temp\tmp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 84.150.43.20.in-addr.arpa udp
US 8.8.8.8:53 11.175.53.84.in-addr.arpa udp
US 8.8.8.8:53 199.176.139.52.in-addr.arpa udp
US 8.8.8.8:53 revitape.com udp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
US 8.8.8.8:53 0.77.109.52.in-addr.arpa udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
NL 8.238.20.126:80 tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 revitape.com tcp
BR 186.250.243.186:80 tcp

Files

memory/2232-133-0x00000000009A0000-0x00000000009BC000-memory.dmp

memory/2232-134-0x0000000002EB0000-0x0000000002EC0000-memory.dmp

memory/2232-135-0x0000000002EB0000-0x0000000002EC0000-memory.dmp