Malware Analysis Report

2025-01-03 05:08

Sample ID 230901-tkszxsgb72
Target BHThisAccountManger2_JC.EXE
SHA256 d0c42bf9edad21b80063db0a7fe9a3d1486c72551fc04b622e44529e5610fa1f
Tags
bitrat persistence trojan vmprotect
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

d0c42bf9edad21b80063db0a7fe9a3d1486c72551fc04b622e44529e5610fa1f

Threat Level: Known bad

The file BHThisAccountManger2_JC.EXE was found to be: Known bad.

Malicious Activity Summary

bitrat persistence trojan vmprotect

BitRAT

Executes dropped EXE

VMProtect packed file

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-01 16:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-01 16:07

Reported

2023-09-01 16:10

Platform

win7-20230831-en

Max time kernel

150s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe"

Signatures

BitRAT

trojan bitrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

VMProtect packed file

vmprotect
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Windows\CurrentVersion\Run\chome = "C:\\Users\\Admin\\AppData\\Local\\chrome\\chome.exe" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe

"C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

Network

Country Destination Domain Proto
US 8.8.8.8:53 rornfl12.duckdns.org udp
KR 112.173.56.153:3072 rornfl12.duckdns.org tcp
US 8.8.8.8:53 rornfl12.duckdns.org udp
US 8.8.8.8:53 rornfl12.duckdns.org udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

MD5 0606141f3fad15f21ebf58bcd5c49f75
SHA1 098454df527c1315e80808328dc464286fa90859
SHA256 76f0851190aea6cb9add8591a662322bd88f742d85f62bcf54050fe5b380eed6
SHA512 1ddcedc9e695b29dc44a0799263c8c50d6c14adae9e0968a501ae25b387c3f4c1b9aed29380800a3c6cd734da0ac71d5d8151f51172ce133e7caa1ce0541df92

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

MD5 0606141f3fad15f21ebf58bcd5c49f75
SHA1 098454df527c1315e80808328dc464286fa90859
SHA256 76f0851190aea6cb9add8591a662322bd88f742d85f62bcf54050fe5b380eed6
SHA512 1ddcedc9e695b29dc44a0799263c8c50d6c14adae9e0968a501ae25b387c3f4c1b9aed29380800a3c6cd734da0ac71d5d8151f51172ce133e7caa1ce0541df92

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

MD5 0606141f3fad15f21ebf58bcd5c49f75
SHA1 098454df527c1315e80808328dc464286fa90859
SHA256 76f0851190aea6cb9add8591a662322bd88f742d85f62bcf54050fe5b380eed6
SHA512 1ddcedc9e695b29dc44a0799263c8c50d6c14adae9e0968a501ae25b387c3f4c1b9aed29380800a3c6cd734da0ac71d5d8151f51172ce133e7caa1ce0541df92

memory/2008-10-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/2008-11-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2008-14-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/2008-13-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2008-17-0x0000000077950000-0x0000000077951000-memory.dmp

memory/2008-16-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2008-18-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2008-20-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2008-22-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2008-26-0x00000000011E0000-0x00000000011EA000-memory.dmp

memory/2008-27-0x00000000011E0000-0x00000000011EA000-memory.dmp

memory/2008-28-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/2008-29-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/2008-30-0x00000000011E0000-0x00000000011EA000-memory.dmp

memory/2008-31-0x00000000011E0000-0x00000000011EA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-01 16:07

Reported

2023-09-01 16:10

Platform

win10v2004-20230831-en

Max time kernel

150s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe"

Signatures

BitRAT

trojan bitrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

VMProtect packed file

vmprotect
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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-1-5-21-4078585466-1563564224-3678410669-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chome = "C:\\Users\\Admin\\AppData\\Local\\chrome\\chome.exeԀ" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chome = "C:\\Users\\Admin\\AppData\\Local\\chrome\\chome.exe" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chome = "C:\\Users\\Admin\\AppData\\Local\\chrome\\chome.exeࠀ" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chome = "C:\\Users\\Admin\\AppData\\Local\\chrome\\chome.exe\ue800" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chome = "C:\\Users\\Admin\\AppData\\Local\\chrome\\chome.exe瘀" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe

"C:\Users\Admin\AppData\Local\Temp\BHThisAccountManger2_JC.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 54.120.234.20.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 rornfl12.duckdns.org udp
KR 112.173.56.153:3072 rornfl12.duckdns.org tcp
US 8.8.8.8:53 153.56.173.112.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 254.210.247.8.in-addr.arpa udp
US 8.8.8.8:53 rornfl12.duckdns.org udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 rornfl12.duckdns.org udp
US 8.8.8.8:53 170.117.168.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

MD5 0606141f3fad15f21ebf58bcd5c49f75
SHA1 098454df527c1315e80808328dc464286fa90859
SHA256 76f0851190aea6cb9add8591a662322bd88f742d85f62bcf54050fe5b380eed6
SHA512 1ddcedc9e695b29dc44a0799263c8c50d6c14adae9e0968a501ae25b387c3f4c1b9aed29380800a3c6cd734da0ac71d5d8151f51172ce133e7caa1ce0541df92

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ACCOUN~1.EXE

MD5 0606141f3fad15f21ebf58bcd5c49f75
SHA1 098454df527c1315e80808328dc464286fa90859
SHA256 76f0851190aea6cb9add8591a662322bd88f742d85f62bcf54050fe5b380eed6
SHA512 1ddcedc9e695b29dc44a0799263c8c50d6c14adae9e0968a501ae25b387c3f4c1b9aed29380800a3c6cd734da0ac71d5d8151f51172ce133e7caa1ce0541df92

memory/1512-7-0x0000000001110000-0x0000000001111000-memory.dmp

memory/1512-8-0x0000000001540000-0x0000000001541000-memory.dmp

memory/1512-9-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/1512-10-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/1512-13-0x0000000075110000-0x0000000075149000-memory.dmp

memory/1512-14-0x0000000074DD0000-0x0000000074E09000-memory.dmp

memory/1512-15-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/1512-16-0x0000000000400000-0x00000000010CD000-memory.dmp

memory/1512-17-0x0000000075110000-0x0000000075149000-memory.dmp

memory/1512-18-0x0000000074DD0000-0x0000000074E09000-memory.dmp