Malware Analysis Report

2024-11-15 08:52

Sample ID 230223-qnbchahg7v
Target rR40P23D.exe
SHA256 d97bdbb4ad01f8873a141e7544160d070469b0c6865b823fec42184315b923cc
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

d97bdbb4ad01f8873a141e7544160d070469b0c6865b823fec42184315b923cc

Threat Level: Known bad

The file rR40P23D.exe was found to be: Known bad.

Malicious Activity Summary

purecrypter downloader loader

Purecrypter family

PureCrypter

Program crash

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-02-23 13:23

Signatures

Purecrypter family

purecrypter

Analysis: behavioral1

Detonation Overview

Submitted

2023-02-23 13:23

Reported

2023-02-23 13:26

Platform

win7-20230220-en

Max time kernel

97s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe"

Signatures

PureCrypter

loader downloader purecrypter

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe

"C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1344

Network

Country Destination Domain Proto
US 8.8.8.8:53 ashaambulanceservice.com udp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
IN 43.225.53.24:443 ashaambulanceservice.com tcp

Files

memory/1676-54-0x0000000001130000-0x000000000114E000-memory.dmp

memory/1676-55-0x0000000000350000-0x0000000000390000-memory.dmp

memory/1676-56-0x0000000000350000-0x0000000000390000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-02-23 13:23

Reported

2023-02-23 13:26

Platform

win10v2004-20230220-en

Max time kernel

82s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe"

Signatures

PureCrypter

loader downloader purecrypter

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe

"C:\Users\Admin\AppData\Local\Temp\rR40P23D.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 380 -ip 380

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 380 -s 2004

Network

Country Destination Domain Proto
US 8.8.8.8:53 ashaambulanceservice.com udp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
US 8.8.8.8:53 24.53.225.43.in-addr.arpa udp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
IN 43.225.53.24:443 ashaambulanceservice.com tcp
US 8.8.8.8:53 11.175.53.84.in-addr.arpa udp
FR 51.11.192.49:443 tcp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp

Files

memory/380-133-0x0000000000790000-0x00000000007AE000-memory.dmp

memory/380-134-0x00000000056C0000-0x0000000005C64000-memory.dmp

memory/380-135-0x00000000051B0000-0x0000000005242000-memory.dmp

memory/380-136-0x0000000005160000-0x0000000005170000-memory.dmp