Malware Analysis Report

2025-08-10 19:21

Sample ID 220616-lppjasdcgq
Target 31b0c90facdaab1ed9e0a4f535f8512f
SHA256 0a800c4ca408c8d9ff41171144199b8567d42aa3f66e9b0fb01a713baa57f2a7
Tags
xloader k59h loader rat suricata
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0a800c4ca408c8d9ff41171144199b8567d42aa3f66e9b0fb01a713baa57f2a7

Threat Level: Known bad

The file 31b0c90facdaab1ed9e0a4f535f8512f was found to be: Known bad.

Malicious Activity Summary

xloader k59h loader rat suricata

suricata: ET MALWARE FormBook CnC Checkin (GET)

Xloader

Xloader Payload

Deletes itself

Checks computer location settings

Suspicious use of SetThreadContext

N/A.

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-06-16 09:42

Signatures

N/A.

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-06-16 09:42

Reported

2022-06-16 09:47

Platform

win7-20220414-en

Max time kernel

151s

Max time network

155s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\PI.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1688 set thread context of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1988 set thread context of 1396 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Windows\Explorer.EXE
PID 1988 set thread context of 1396 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Windows\Explorer.EXE
PID 1360 set thread context of 1396 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\Explorer.EXE

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\cscript.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1688 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1688 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1688 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1688 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1688 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1688 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1688 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 1396 wrote to memory of 1360 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 1396 wrote to memory of 1360 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 1396 wrote to memory of 1360 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 1396 wrote to memory of 1360 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 1360 wrote to memory of 1648 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe
PID 1360 wrote to memory of 1648 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe
PID 1360 wrote to memory of 1648 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe
PID 1360 wrote to memory of 1648 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

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

C:\Windows\SysWOW64\cscript.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\PI.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.esygbd.com udp
CN 43.137.0.175:80 www.esygbd.com tcp

Files

memory/1688-54-0x0000000000820000-0x00000000008D4000-memory.dmp

memory/1688-55-0x0000000076391000-0x0000000076393000-memory.dmp

memory/1688-56-0x0000000000440000-0x000000000044A000-memory.dmp

memory/1688-57-0x0000000005CB0000-0x0000000005D52000-memory.dmp

memory/1688-58-0x0000000004AD0000-0x0000000004B3C000-memory.dmp

memory/1988-59-0x0000000000400000-0x000000000042C000-memory.dmp

memory/1988-60-0x0000000000400000-0x000000000042C000-memory.dmp

memory/1988-62-0x0000000000400000-0x000000000042C000-memory.dmp

memory/1988-63-0x000000000041F650-mapping.dmp

memory/1988-65-0x0000000000BB0000-0x0000000000EB3000-memory.dmp

memory/1988-66-0x00000000001D0000-0x00000000001E1000-memory.dmp

memory/1396-67-0x0000000004D90000-0x0000000004ED0000-memory.dmp

memory/1988-68-0x0000000000400000-0x000000000042C000-memory.dmp

memory/1988-69-0x0000000000210000-0x0000000000221000-memory.dmp

memory/1396-70-0x00000000068C0000-0x00000000069FA000-memory.dmp

memory/1988-72-0x0000000000400000-0x000000000042C000-memory.dmp

memory/1360-71-0x0000000000000000-mapping.dmp

memory/1648-73-0x0000000000000000-mapping.dmp

memory/1360-74-0x0000000000BF0000-0x0000000000C12000-memory.dmp

memory/1360-75-0x0000000000070000-0x000000000009C000-memory.dmp

memory/1360-76-0x0000000002020000-0x0000000002323000-memory.dmp

memory/1360-77-0x0000000000A50000-0x0000000000AE0000-memory.dmp

memory/1396-78-0x0000000007880000-0x0000000007A0A000-memory.dmp

memory/1360-79-0x0000000000070000-0x000000000009C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-06-16 09:42

Reported

2022-06-16 09:47

Platform

win10v2004-20220414-en

Max time kernel

148s

Max time network

154s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

suricata: ET MALWARE FormBook CnC Checkin (GET)

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\PI.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4308 set thread context of 2292 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Users\Admin\AppData\Local\Temp\PI.exe
PID 2292 set thread context of 3048 N/A C:\Users\Admin\AppData\Local\Temp\PI.exe C:\Windows\Explorer.EXE
PID 2188 set thread context of 3048 N/A C:\Windows\SysWOW64\msdt.exe C:\Windows\Explorer.EXE

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A
N/A N/A C:\Windows\SysWOW64\msdt.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PI.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\msdt.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

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

C:\Windows\SysWOW64\msdt.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\PI.exe"

Network

Country Destination Domain Proto
NL 20.190.160.67:443 tcp
NL 104.110.191.140:80 tcp
NL 20.190.160.8:443 tcp
IE 20.50.80.209:443 tcp
NL 20.190.160.2:443 tcp
NL 104.110.191.140:80 tcp
NL 104.110.191.140:80 tcp
NL 178.79.208.1:80 tcp
US 93.184.220.29:80 tcp
NL 20.190.160.136:443 tcp
US 8.8.8.8:53 www.pancinobakery.com udp
US 8.8.8.8:53 www.mariorovera.com udp
DE 217.160.0.114:80 www.mariorovera.com tcp
US 8.8.8.8:53 www.onthegotransport.com udp
US 8.8.8.8:53 www.cidexfur.com udp
US 192.200.213.239:80 www.cidexfur.com tcp
NL 20.190.160.73:443 tcp
US 8.8.8.8:53 www.ssciencedirect.com udp
US 199.59.243.220:80 www.ssciencedirect.com tcp
US 8.8.8.8:53 www.associationcepedcameroun.com udp
US 199.15.163.148:80 www.associationcepedcameroun.com tcp
US 8.8.8.8:53 www.snusmail.com udp
DE 84.200.110.123:80 www.snusmail.com tcp
NL 20.190.160.71:443 tcp
US 8.8.8.8:53 www.compassmarinservices.com udp
US 8.8.8.8:53 www.linioshop6.com udp
US 45.207.44.65:80 www.linioshop6.com tcp
NL 20.190.160.132:443 tcp
US 8.8.8.8:53 www.linioshop6.com udp
US 45.207.44.65:80 www.linioshop6.com tcp
US 8.8.8.8:53 www.achalarya.com udp
US 34.102.136.180:80 www.achalarya.com tcp

Files

memory/4308-130-0x0000000000030000-0x00000000000E4000-memory.dmp

memory/4308-131-0x0000000004FB0000-0x0000000005554000-memory.dmp

memory/4308-132-0x0000000004A00000-0x0000000004A92000-memory.dmp

memory/4308-133-0x0000000004AA0000-0x0000000004B4A000-memory.dmp

memory/4308-134-0x0000000004BD0000-0x0000000004BDA000-memory.dmp

memory/4308-135-0x0000000007770000-0x000000000780C000-memory.dmp

memory/2292-136-0x0000000000000000-mapping.dmp

memory/2292-137-0x0000000000400000-0x000000000042C000-memory.dmp

memory/2292-139-0x0000000001720000-0x0000000001A6A000-memory.dmp

memory/2292-140-0x0000000001290000-0x00000000012A1000-memory.dmp

memory/3048-141-0x0000000008010000-0x0000000008154000-memory.dmp

memory/2188-142-0x0000000000000000-mapping.dmp

memory/2292-143-0x0000000000400000-0x000000000042C000-memory.dmp

memory/2188-145-0x0000000001100000-0x000000000112C000-memory.dmp

memory/2188-144-0x0000000000260000-0x00000000002B7000-memory.dmp

memory/60-146-0x0000000000000000-mapping.dmp

memory/2188-147-0x0000000003290000-0x00000000035DA000-memory.dmp

memory/2188-148-0x0000000001100000-0x000000000112C000-memory.dmp

memory/2188-149-0x0000000002FC0000-0x0000000003050000-memory.dmp

memory/3048-150-0x0000000007E20000-0x0000000007F4F000-memory.dmp

memory/3048-151-0x0000000007E20000-0x0000000007F4F000-memory.dmp