Malware Analysis Report

2025-01-03 05:02

Sample ID 231231-gj25zsbef5
Target 2ab11c37b84f87c8f05bbd7997648e63
SHA256 29dd2b13f081a0c7f8312c4b4c433ccdcc3b3a83b91a16a88393370dda44f60b
Tags
bitrat zgrat rat trojan upx
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

29dd2b13f081a0c7f8312c4b4c433ccdcc3b3a83b91a16a88393370dda44f60b

Threat Level: Known bad

The file 2ab11c37b84f87c8f05bbd7997648e63 was found to be: Known bad.

Malicious Activity Summary

bitrat zgrat rat trojan upx

ZGRat

Detect ZGRat V1

BitRAT

Loads dropped DLL

UPX packed file

Executes dropped EXE

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-31 05:50

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2023-12-31 05:50

Reported

2024-01-05 17:30

Platform

win7-20231215-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe"

Signatures

BitRAT

trojan bitrat

Detect ZGRat V1

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ZGRat

rat zgrat

Executes dropped EXE

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

UPX packed file

upx
Description Indicator Process Target
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Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2004 set thread context of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\RegAsm.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\RegAsm.exe N/A

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2004 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Windows\SysWOW64\WScript.exe
PID 2004 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Windows\SysWOW64\WScript.exe
PID 2004 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Windows\SysWOW64\WScript.exe
PID 2004 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Windows\SysWOW64\WScript.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2684 wrote to memory of 2644 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2684 wrote to memory of 2644 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2684 wrote to memory of 2644 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2684 wrote to memory of 2644 N/A C:\Windows\SysWOW64\WScript.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
PID 2004 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe

"C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe"

C:\Windows\SysWOW64\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Curxdeconfrdsjimvavaanw.vbs"

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

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\outlook.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 eter102.dvrlists.com udp
US 8.8.8.8:53 eter102.dvrlists.com udp
US 216.38.2.208:3050 eter102.dvrlists.com tcp
US 8.8.8.8:53 eter102.dvrlists.com udp
US 8.8.8.8:53 eter102.dvrlists.com udp
US 216.38.2.208:3050 eter102.dvrlists.com tcp
US 8.8.8.8:53 eter102.dvrlists.com udp
US 8.8.8.8:53 eter102.dvrlists.com udp
US 8.8.8.8:53 eter102.dvrlists.com udp
US 216.38.2.208:3050 eter102.dvrlists.com tcp
US 8.8.8.8:53 eter102.dvrlists.com udp
US 8.8.8.8:53 eter102.dvrlists.com udp

Files

memory/2004-0-0x0000000000E30000-0x0000000000FEA000-memory.dmp

memory/2004-1-0x0000000074CA0000-0x000000007538E000-memory.dmp

memory/2004-2-0x0000000004D40000-0x0000000004D80000-memory.dmp

memory/2004-3-0x0000000074CA0000-0x000000007538E000-memory.dmp

memory/2004-4-0x0000000008240000-0x00000000083E8000-memory.dmp

memory/2004-5-0x0000000000DC0000-0x0000000000E28000-memory.dmp

memory/2004-6-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-7-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-11-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-9-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-13-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-15-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-17-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-19-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-21-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-23-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-25-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-27-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-29-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-33-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-35-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-31-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-37-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-39-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-41-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-43-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-45-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-47-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-49-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-57-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-59-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-55-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-53-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-61-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-51-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-63-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-65-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-67-0x0000000000DC0000-0x0000000000E22000-memory.dmp

memory/2004-69-0x0000000000DC0000-0x0000000000E22000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_Curxdeconfrdsjimvavaanw.vbs

MD5 fe201b96b30ce7b044530dfc5659deac
SHA1 91886ecd3513af12147c4039f5f7c89a0a77fda7
SHA256 085219c444380891f8e66c4a7177cf148fb8309efcc353f61d8a590b9d06ac79
SHA512 1c2babdf1983450721f38fb5ae9b1544fa2a8060b2b6d367c86781faab8ef0777e9875470fca23e31cda983ed801e54dc2ce3d637a04c1f577f342439f7437ae

\Users\Admin\AppData\Local\Temp\RegAsm.exe

MD5 b58b926c3574d28d5b7fdd2ca3ec30d5
SHA1 d260c4ffd603a9cfc057fcb83d678b1cecdf86f9
SHA256 6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3
SHA512 b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

memory/2004-1975-0x0000000074CA0000-0x000000007538E000-memory.dmp

memory/2264-1980-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2644-1985-0x0000000074480000-0x0000000074A2B000-memory.dmp

memory/2644-1986-0x0000000074480000-0x0000000074A2B000-memory.dmp

memory/2644-1987-0x0000000002220000-0x0000000002260000-memory.dmp

memory/2644-1988-0x0000000002220000-0x0000000002260000-memory.dmp

memory/2644-1997-0x0000000074480000-0x0000000074A2B000-memory.dmp

memory/2264-1998-0x0000000000400000-0x00000000007E4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 05:50

Reported

2024-01-05 17:30

Platform

win10v2004-20231215-en

Max time kernel

163s

Max time network

176s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe"

Signatures

Detect ZGRat V1

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ZGRat

rat zgrat

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe

"C:\Users\Admin\AppData\Local\Temp\2ab11c37b84f87c8f05bbd7997648e63.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 1.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp
US 13.107.21.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.21.107.13.in-addr.arpa udp

Files

memory/1728-0-0x0000000074E20000-0x00000000755D0000-memory.dmp

memory/1728-1-0x0000000000BB0000-0x0000000000D6A000-memory.dmp

memory/1728-2-0x0000000005C10000-0x00000000061B4000-memory.dmp

memory/1728-3-0x0000000005750000-0x00000000057E2000-memory.dmp

memory/1728-4-0x00000000059C0000-0x00000000059D0000-memory.dmp

memory/1728-5-0x0000000074E20000-0x00000000755D0000-memory.dmp

memory/1728-6-0x0000000005900000-0x000000000590A000-memory.dmp

memory/1728-7-0x00000000059C0000-0x00000000059D0000-memory.dmp

memory/1728-8-0x00000000070F0000-0x0000000007298000-memory.dmp

memory/1728-9-0x00000000015A0000-0x0000000001608000-memory.dmp

memory/1728-10-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-11-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-13-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-15-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-17-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-19-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-21-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-23-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-25-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-27-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-29-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-31-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-33-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-35-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-37-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-39-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-41-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-43-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-45-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-47-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-49-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-51-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-53-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-55-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-57-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-59-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-61-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-63-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-65-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-67-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-69-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-71-0x00000000015A0000-0x0000000001602000-memory.dmp

memory/1728-73-0x00000000015A0000-0x0000000001602000-memory.dmp