Malware Analysis Report

2025-08-05 13:52

Sample ID 220621-myvbksdagp
Target a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300
SHA256 a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300
Tags
formbook xloader zgtb loader persistence rat spyware stealer suricata trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300

Threat Level: Known bad

The file a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300 was found to be: Known bad.

Malicious Activity Summary

formbook xloader zgtb loader persistence rat spyware stealer suricata trojan

Formbook

Xloader

suricata: ET MALWARE FormBook CnC Checkin (POST) M2

suricata: ET MALWARE FormBook CnC Checkin (GET)

Xloader Payload

Adds policy Run key to start application

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

Drops file in Program Files directory

Suspicious use of WriteProcessMemory

Modifies registry class

Modifies Internet Explorer settings

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-06-21 10:52

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-06-21 10:52

Reported

2022-06-21 10:55

Platform

win10v2004-20220414-en

Max time kernel

150s

Max time network

153s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Xloader

loader xloader

suricata: ET MALWARE FormBook CnC Checkin (GET)

suricata

suricata: ET MALWARE FormBook CnC Checkin (POST) M2

suricata

Xloader Payload

rat
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

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Windows\SysWOW64\wlanext.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\J6QL8PXHQZC = "C:\\Program Files (x86)\\Avt5dufwh\\config4hip.exe" C:\Windows\SysWOW64\wlanext.exe N/A

Reads user/profile data of web browsers

spyware stealer

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Avt5dufwh\config4hip.exe C:\Windows\SysWOW64\wlanext.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 C:\Windows\SysWOW64\wlanext.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Windows\Explorer.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ C:\Windows\Explorer.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A
N/A N/A C:\Windows\SysWOW64\wlanext.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\wlanext.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2388 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2388 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2388 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2388 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2388 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2388 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 3144 wrote to memory of 2432 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wlanext.exe
PID 3144 wrote to memory of 2432 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wlanext.exe
PID 3144 wrote to memory of 2432 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wlanext.exe
PID 2432 wrote to memory of 788 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 788 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 788 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 2376 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 2376 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 2376 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 3700 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 3700 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 3700 N/A C:\Windows\SysWOW64\wlanext.exe C:\Windows\SysWOW64\cmd.exe
PID 2432 wrote to memory of 3932 N/A C:\Windows\SysWOW64\wlanext.exe C:\Program Files\Mozilla Firefox\Firefox.exe
PID 2432 wrote to memory of 3932 N/A C:\Windows\SysWOW64\wlanext.exe C:\Program Files\Mozilla Firefox\Firefox.exe
PID 2432 wrote to memory of 3932 N/A C:\Windows\SysWOW64\wlanext.exe C:\Program Files\Mozilla Firefox\Firefox.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe

"C:\Users\Admin\AppData\Local\Temp\a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300.exe"

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

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

C:\Windows\SysWOW64\wlanext.exe

"C:\Windows\SysWOW64\wlanext.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"

C:\Windows\SysWOW64\cmd.exe

/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V

C:\Windows\SysWOW64\cmd.exe

/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V

C:\Program Files\Mozilla Firefox\Firefox.exe

"C:\Program Files\Mozilla Firefox\Firefox.exe"

Network

Country Destination Domain Proto
US 209.197.3.8:80 tcp
NL 195.133.18.117:5746 tcp
US 209.197.3.8:80 tcp
US 52.109.12.19:443 tcp
NL 104.97.14.81:80 tcp
US 209.197.3.8:80 tcp
IE 20.54.110.249:443 tcp
US 8.8.8.8:53 www.fxivcama.com udp
US 69.57.161.210:80 www.fxivcama.com tcp
NL 104.97.14.80:80 tcp
NL 104.97.14.80:80 tcp
US 8.8.8.8:53 www.zhouwuxiawu.com udp
US 20.42.65.89:443 tcp
US 13.107.21.200:443 tcp
US 8.8.8.8:53 www.7788tiepin.com udp
SG 149.127.225.41:80 www.7788tiepin.com tcp
SG 149.127.225.41:80 www.7788tiepin.com tcp
SG 149.127.225.41:80 www.7788tiepin.com tcp
US 8.8.8.8:53 www.jivraj9india.com udp
US 15.197.142.173:80 www.jivraj9india.com tcp
US 15.197.142.173:80 www.jivraj9india.com tcp
US 15.197.142.173:80 www.jivraj9india.com tcp
US 8.8.8.8:53 www.nxteam.net udp
US 13.107.21.200:443 tcp
US 8.8.8.8:53 www.luminantentertainment.com udp
US 192.185.24.234:80 www.luminantentertainment.com tcp
US 192.185.24.234:80 www.luminantentertainment.com tcp
US 192.185.24.234:80 www.luminantentertainment.com tcp
US 8.8.8.8:53 www.symmetrya.online udp
ES 31.214.178.54:80 www.symmetrya.online tcp
ES 31.214.178.54:80 www.symmetrya.online tcp
ES 31.214.178.54:80 www.symmetrya.online tcp
US 8.8.8.8:53 www.zs-yaoshi.com udp
US 166.88.174.43:80 www.zs-yaoshi.com tcp
US 8.8.8.8:53 www.zs-yaoshi.com udp
US 166.88.174.43:80 www.zs-yaoshi.com tcp
US 166.88.174.43:80 www.zs-yaoshi.com tcp

Files

memory/2388-130-0x0000000000280000-0x00000000002CC000-memory.dmp

memory/4756-131-0x0000000000000000-mapping.dmp

memory/4756-132-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4756-134-0x0000000001290000-0x00000000015DA000-memory.dmp

memory/4756-135-0x0000000001220000-0x0000000001231000-memory.dmp

memory/3144-136-0x0000000007F70000-0x0000000008113000-memory.dmp

memory/2432-137-0x0000000000000000-mapping.dmp

memory/4756-138-0x0000000000400000-0x000000000042B000-memory.dmp

memory/788-139-0x0000000000000000-mapping.dmp

memory/2432-140-0x00000000016D0000-0x0000000001A1A000-memory.dmp

memory/2432-141-0x0000000000D80000-0x0000000000D97000-memory.dmp

memory/2432-142-0x0000000001010000-0x000000000103B000-memory.dmp

memory/2432-143-0x0000000001560000-0x00000000015F0000-memory.dmp

memory/3144-144-0x0000000002760000-0x000000000286E000-memory.dmp

memory/2432-145-0x0000000001010000-0x000000000103B000-memory.dmp

memory/3144-146-0x0000000002760000-0x000000000286E000-memory.dmp

memory/2376-147-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\DB1

MD5 b608d407fc15adea97c26936bc6f03f6
SHA1 953e7420801c76393902c0d6bb56148947e41571
SHA256 b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
SHA512 cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

memory/3700-149-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\DB1

MD5 349e6eb110e34a08924d92f6b334801d
SHA1 bdfb289daff51890cc71697b6322aa4b35ec9169
SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
SHA512 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574