Malware Analysis Report

2025-05-28 17:21

Sample ID 240503-p2hs3aag78
Target bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1
SHA256 bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1
Tags
zgrat rat
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

bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1

Threat Level: Known bad

The file bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1 was found to be: Known bad.

Malicious Activity Summary

zgrat rat

Detect ZGRat V1

ZGRat

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-03 12:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-03 12:49

Reported

2024-05-03 12:51

Platform

win10v2004-20240419-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe"

Signatures

Detect ZGRat V1

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

ZGRat

rat zgrat

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1424 set thread context of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1424 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe

"C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1424 -ip 1424

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 296

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
NL 23.62.61.160:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 160.61.62.23.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 51.15.97.104.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
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 204.79.197.200:443 tse1.mm.bing.net tcp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp

Files

memory/1424-0-0x0000000000DA6000-0x0000000000DA7000-memory.dmp

memory/2808-1-0x0000000000400000-0x000000000045C000-memory.dmp

memory/2808-2-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

memory/2808-3-0x0000000005AB0000-0x0000000006054000-memory.dmp

memory/2808-4-0x0000000005500000-0x0000000005592000-memory.dmp

memory/2808-5-0x0000000073DE0000-0x0000000074590000-memory.dmp

memory/1424-6-0x0000000000D20000-0x0000000000DA9953-memory.dmp

memory/2808-7-0x00000000054C0000-0x00000000054CA000-memory.dmp

memory/2808-8-0x0000000008840000-0x0000000008E58000-memory.dmp

memory/2808-9-0x00000000083B0000-0x00000000084BA000-memory.dmp

memory/2808-10-0x00000000082E0000-0x00000000082F2000-memory.dmp

memory/2808-11-0x0000000008340000-0x000000000837C000-memory.dmp

memory/2808-12-0x00000000084C0000-0x000000000850C000-memory.dmp

memory/2808-13-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

memory/2808-14-0x0000000073DE0000-0x0000000074590000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-03 12:49

Reported

2024-05-03 12:51

Platform

win11-20240426-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe"

Signatures

Detect ZGRat V1

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

ZGRat

rat zgrat

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1732 set thread context of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1732 wrote to memory of 5036 N/A C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe

"C:\Users\Admin\AppData\Local\Temp\bc415aafd68de975f42d71ef25868a7de65ddf166a0bb03246243c6d1b0a0af1.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1732 -ip 1732

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 312

Network

Country Destination Domain Proto
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp
NL 80.79.4.61:26335 tcp

Files

memory/5036-0-0x0000000000400000-0x000000000045C000-memory.dmp

memory/1732-1-0x0000000000596000-0x0000000000597000-memory.dmp

memory/5036-2-0x00000000745CE000-0x00000000745CF000-memory.dmp

memory/5036-3-0x0000000005E00000-0x00000000063A6000-memory.dmp

memory/5036-4-0x0000000005850000-0x00000000058E2000-memory.dmp

memory/5036-5-0x00000000745C0000-0x0000000074D71000-memory.dmp

memory/1732-6-0x0000000000510000-0x0000000000599953-memory.dmp

memory/5036-7-0x0000000005930000-0x000000000593A000-memory.dmp

memory/5036-8-0x0000000008DF0000-0x0000000009408000-memory.dmp

memory/5036-9-0x0000000008930000-0x0000000008A3A000-memory.dmp

memory/5036-10-0x0000000008870000-0x0000000008882000-memory.dmp

memory/5036-11-0x00000000088D0000-0x000000000890C000-memory.dmp

memory/5036-12-0x0000000008A40000-0x0000000008A8C000-memory.dmp

memory/5036-13-0x00000000745CE000-0x00000000745CF000-memory.dmp

memory/5036-14-0x00000000745C0000-0x0000000074D71000-memory.dmp