Malware Analysis Report

2024-10-23 21:47

Sample ID 240312-csbbeafd22
Target 2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b

Threat Level: Known bad

The file 2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe was found to be: Known bad.

Malicious Activity Summary

asyncrat purelogstealer default persistence rat stealer

AsyncRat

PureLog Stealer payload

PureLog Stealer

Detects executables attemping to enumerate video devices using WMI

Detects executables packed with SmartAssembly

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-12 02:19

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-12 02:19

Reported

2024-03-12 02:22

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe"

Signatures

AsyncRat

rat asyncrat

PureLog Stealer

stealer purelogstealer

PureLog Stealer payload

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

Detects executables attemping to enumerate video devices using WMI

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

Detects executables packed with SmartAssembly

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-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dzodxh = "C:\\Users\\Admin\\AppData\\Roaming\\Dzodxh.exe" C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4280 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 4280 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 4280 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 4280 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 4280 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 4280 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

"C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe"

C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.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
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
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 88.156.103.20.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.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 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.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 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
DE 5.182.87.154:4449 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 240.221.184.93.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
US 8.8.8.8:53 194.178.17.96.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 8.8.8.8:53 176.178.17.96.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
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 169.117.168.52.in-addr.arpa udp
DE 5.182.87.154:4449 tcp

Files

memory/4280-0-0x000001BF16D00000-0x000001BF16DA8000-memory.dmp

memory/4280-1-0x000001BF17170000-0x000001BF171BC000-memory.dmp

memory/4280-2-0x000001BF171E0000-0x000001BF17214000-memory.dmp

memory/4280-3-0x00007FFE83B30000-0x00007FFE845F1000-memory.dmp

memory/4280-4-0x000001BF313B0000-0x000001BF313C0000-memory.dmp

memory/4280-5-0x000001BF31290000-0x000001BF312C4000-memory.dmp

memory/4280-6-0x000001BF312C0000-0x000001BF3130C000-memory.dmp

memory/2580-8-0x0000000000400000-0x0000000000416000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe.log

MD5 9f5d0107d96d176b1ffcd5c7e7a42dc9
SHA1 de83788e2f18629555c42a3e6fada12f70457141
SHA256 d0630b8466cebaaf92533826f6547b6f36a3c480848dc38d650acd52b522a097
SHA512 86cfaa3327b59a976ddd4a5915f3fe8c938481344fcbd10e7533b4c5003673d078756e62435940471658a03504c3bc30603204d6a133727a3f36c96d08714c61

memory/4280-12-0x00007FFE83B30000-0x00007FFE845F1000-memory.dmp

memory/2580-13-0x00007FFE83B30000-0x00007FFE845F1000-memory.dmp

memory/2580-14-0x0000018407680000-0x0000018407690000-memory.dmp

memory/2580-15-0x00007FFE83B30000-0x00007FFE845F1000-memory.dmp

memory/2580-16-0x0000018407680000-0x0000018407690000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-12 02:19

Reported

2024-03-12 02:22

Platform

win7-20240221-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.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

Detects executables attemping to enumerate video devices using WMI

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

Detects executables packed with SmartAssembly

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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dzodxh = "C:\\Users\\Admin\\AppData\\Roaming\\Dzodxh.exe" C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2796 wrote to memory of 2216 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 2796 wrote to memory of 2216 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 2796 wrote to memory of 2216 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 2796 wrote to memory of 2216 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 2796 wrote to memory of 2216 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 2796 wrote to memory of 2216 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe
PID 2796 wrote to memory of 2216 N/A C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

"C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe"

C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

C:\Users\Admin\AppData\Local\Temp\2799308c4b285f662d2954b3d9900951d74ae0cdde04b80ff865221817103f3b.exe

Network

N/A

Files

memory/2796-0-0x00000000003B0000-0x0000000000458000-memory.dmp

memory/2796-2-0x000007FEF5830000-0x000007FEF621C000-memory.dmp

memory/2796-1-0x00000000002C0000-0x000000000030C000-memory.dmp

memory/2796-3-0x000000001AE30000-0x000000001AEB0000-memory.dmp

memory/2796-4-0x0000000000330000-0x0000000000364000-memory.dmp

memory/2796-5-0x0000000000360000-0x0000000000394000-memory.dmp

memory/2796-6-0x0000000000460000-0x00000000004AC000-memory.dmp

memory/2216-8-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2216-10-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2216-12-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2216-14-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

memory/2216-16-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2796-18-0x000007FEF5830000-0x000007FEF621C000-memory.dmp

memory/2216-21-0x00000000003B0000-0x00000000003B0000-memory.dmp

memory/2216-22-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp