Malware Analysis Report

2024-10-23 21:47

Sample ID 240311-pygrlafb64
Target file.exe
SHA256 2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b
Tags
asyncrat purelogstealer default persistence rat stealer
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

2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b

Threat Level: Known bad

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

Malicious Activity Summary

asyncrat purelogstealer default persistence rat stealer

PureLog Stealer

PureLog Stealer payload

AsyncRat

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-11 12:44

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-11 12:44

Reported

2024-03-11 12:46

Platform

win7-20240215-en

Max time kernel

138s

Max time network

140s

Command Line

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

Signatures

AsyncRat

rat asyncrat

PureLog Stealer

stealer purelogstealer

PureLog Stealer payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dzodxh = "C:\\Users\\Admin\\AppData\\Roaming\\Dzodxh.exe" C:\Users\Admin\AppData\Local\Temp\file.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2220 set thread context of 2984 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Users\Admin\AppData\Local\Temp\file.exe

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp

Files

memory/2220-0-0x00000000012D0000-0x0000000001378000-memory.dmp

memory/2220-1-0x0000000000500000-0x000000000054C000-memory.dmp

memory/2220-2-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

memory/2220-3-0x0000000000A30000-0x0000000000AB0000-memory.dmp

memory/2220-4-0x0000000000450000-0x0000000000484000-memory.dmp

memory/2220-5-0x0000000000AB0000-0x0000000000AE4000-memory.dmp

memory/2220-6-0x0000000000C80000-0x0000000000CCC000-memory.dmp

memory/2984-8-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2984-9-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2984-10-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2984-11-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

memory/2984-13-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2220-16-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

memory/2984-18-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

memory/2984-19-0x0000000001200000-0x0000000001280000-memory.dmp

memory/2984-20-0x0000000077760000-0x0000000077909000-memory.dmp

memory/2984-21-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

memory/2984-22-0x0000000077760000-0x0000000077909000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-11 12:44

Reported

2024-03-11 12:46

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

157s

Command Line

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

Signatures

AsyncRat

rat asyncrat

PureLog Stealer

stealer purelogstealer

PureLog Stealer payload

Description Indicator Process Target
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dzodxh = "C:\\Users\\Admin\\AppData\\Roaming\\Dzodxh.exe" C:\Users\Admin\AppData\Local\Temp\file.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4092 set thread context of 1468 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Users\Admin\AppData\Local\Temp\file.exe

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 75.134.221.88.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp

Files

memory/4092-0-0x0000023AAA200000-0x0000023AAA2A8000-memory.dmp

memory/4092-1-0x0000023AABEC0000-0x0000023AABF0C000-memory.dmp

memory/4092-2-0x0000023AC46F0000-0x0000023AC4724000-memory.dmp

memory/4092-3-0x00007FF99B3A0000-0x00007FF99BE61000-memory.dmp

memory/4092-4-0x0000023AC4760000-0x0000023AC4794000-memory.dmp

memory/4092-5-0x0000023AABE90000-0x0000023AABEA0000-memory.dmp

memory/4092-6-0x0000023AC4790000-0x0000023AC47DC000-memory.dmp

memory/1468-8-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1468-9-0x00007FF99B3A0000-0x00007FF99BE61000-memory.dmp

memory/4092-11-0x00007FF99B3A0000-0x00007FF99BE61000-memory.dmp

memory/1468-13-0x00000141F6490000-0x00000141F64A0000-memory.dmp

memory/1468-14-0x00007FF99B3A0000-0x00007FF99BE61000-memory.dmp

memory/1468-15-0x00000141F6490000-0x00000141F64A0000-memory.dmp