Malware Analysis Report

2024-12-06 03:12

Sample ID 241121-yqxmhswlgy
Target fe62c3e75f40fdd55627df462b423c6f6004b26e454041ff115e755d1c26120b
SHA256 fe62c3e75f40fdd55627df462b423c6f6004b26e454041ff115e755d1c26120b
Tags
guloader xloader i8be discovery downloader loader rat
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

fe62c3e75f40fdd55627df462b423c6f6004b26e454041ff115e755d1c26120b

Threat Level: Known bad

The file fe62c3e75f40fdd55627df462b423c6f6004b26e454041ff115e755d1c26120b was found to be: Known bad.

Malicious Activity Summary

guloader xloader i8be discovery downloader loader rat

Guloader,Cloudeye

Xloader family

Xloader

Guloader family

Xloader payload

Deletes itself

Checks QEMU agent file

Legitimate hosting services abused for malware hosting/C2

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 19:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 19:59

Reported

2024-11-21 20:02

Platform

win7-20241023-en

Max time kernel

146s

Max time network

120s

Command Line

C:\Windows\Explorer.EXE

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Xloader

loader xloader

Xloader family

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

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A

Deletes itself

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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\mstsc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\mstsc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1628 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe
PID 1628 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe
PID 1628 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe
PID 1628 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe
PID 1628 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe
PID 1212 wrote to memory of 2768 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 1212 wrote to memory of 2768 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 1212 wrote to memory of 2768 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 1212 wrote to memory of 2768 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 2768 wrote to memory of 2016 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 2768 wrote to memory of 2016 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 2768 wrote to memory of 2016 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 2768 wrote to memory of 2016 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe

"C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe"

C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe

"C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe"

C:\Windows\SysWOW64\mstsc.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
GB 142.250.180.14:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.200.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.200.3:80 o.pki.goog tcp
US 8.8.8.8:53 doc-0s-3c-docs.googleusercontent.com udp
GB 216.58.201.97:443 doc-0s-3c-docs.googleusercontent.com tcp
US 8.8.8.8:53 www.microsoft.com udp
IT 2.22.33.235:80 www.microsoft.com tcp

Files

memory/1628-2-0x00000000003E0000-0x00000000003ED000-memory.dmp

memory/1628-4-0x0000000077901000-0x0000000077A02000-memory.dmp

memory/1628-3-0x0000000077AF0000-0x0000000077BC6000-memory.dmp

memory/1628-5-0x00000000003E0000-0x00000000003ED000-memory.dmp

memory/1628-6-0x0000000077900000-0x0000000077AA9000-memory.dmp

memory/2172-7-0x0000000000400000-0x0000000000553000-memory.dmp

memory/1628-9-0x0000000077AF0000-0x0000000077BC6000-memory.dmp

memory/1628-10-0x00000000003E0000-0x00000000003ED000-memory.dmp

memory/2172-11-0x0000000077900000-0x0000000077AA9000-memory.dmp

memory/2172-18-0x0000000000400000-0x0000000000553000-memory.dmp

memory/2172-34-0x00000000001B0000-0x00000000002B0000-memory.dmp

memory/2172-33-0x0000000000400000-0x0000000000553000-memory.dmp

memory/1212-35-0x0000000005020000-0x0000000005160000-memory.dmp

memory/2172-36-0x00000000001B0000-0x00000000002B0000-memory.dmp

memory/2768-38-0x00000000000D0000-0x00000000001D4000-memory.dmp

memory/2172-37-0x0000000000400000-0x0000000000553000-memory.dmp

memory/2768-40-0x00000000000D0000-0x00000000001D4000-memory.dmp

memory/2768-41-0x0000000000080000-0x00000000000A8000-memory.dmp

memory/1212-42-0x0000000005020000-0x0000000005160000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 19:59

Reported

2024-11-21 20:02

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

C:\Windows\Explorer.EXE

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Xloader

loader xloader

Xloader family

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

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\mstsc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\mstsc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe

"C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe"

C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe

"C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe"

C:\Windows\SysWOW64\mstsc.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\ATTACHED ORIGINAL REF __NOTE.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 96.36.72.23.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 drive.google.com udp
GB 142.250.180.14:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.200.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.200.3:80 o.pki.goog tcp
US 8.8.8.8:53 doc-0s-3c-docs.googleusercontent.com udp
GB 216.58.201.97:443 doc-0s-3c-docs.googleusercontent.com tcp
US 8.8.8.8:53 97.201.58.216.in-addr.arpa udp
US 8.8.8.8:53 168.36.72.23.in-addr.arpa udp
US 8.8.8.8:53 www.climat2020.com udp
US 8.8.8.8:53 www.newazenterprise.com udp
SG 85.187.128.28:80 www.newazenterprise.com tcp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.newazenterprise.com udp
SG 85.187.128.28:80 www.newazenterprise.com tcp
US 8.8.8.8:53 www.c-w3.com udp
US 8.8.8.8:53 www.sprinklesglobal.com udp
IN 103.38.50.62:80 www.sprinklesglobal.com tcp
US 8.8.8.8:53 62.50.38.103.in-addr.arpa udp
US 8.8.8.8:53 www.wowyuu.net udp
US 8.8.8.8:53 www.seoforamz.com udp
US 8.8.8.8:53 www.go-kalisa.com udp
US 8.8.8.8:53 www.flowingwealth.com udp
US 3.140.13.188:80 www.flowingwealth.com tcp
US 8.8.8.8:53 188.13.140.3.in-addr.arpa udp
US 8.8.8.8:53 www.e-yzr.com udp
US 8.8.8.8:53 www.globalmilitaryaircraft.com udp

Files

memory/644-2-0x0000000002AE0000-0x0000000002AED000-memory.dmp

memory/644-3-0x0000000077261000-0x0000000077381000-memory.dmp

memory/644-4-0x0000000002AE0000-0x0000000002AED000-memory.dmp

memory/644-5-0x0000000077261000-0x0000000077381000-memory.dmp

memory/644-6-0x0000000077261000-0x0000000077381000-memory.dmp

memory/644-7-0x0000000002AE0000-0x0000000002AED000-memory.dmp

memory/3736-8-0x0000000000400000-0x000000000055D000-memory.dmp

memory/3736-10-0x0000000000560000-0x0000000000660000-memory.dmp

memory/3736-14-0x0000000000400000-0x000000000055D000-memory.dmp

memory/3736-25-0x0000000000560000-0x0000000000660000-memory.dmp

memory/3736-24-0x0000000000400000-0x000000000055D000-memory.dmp

memory/3736-26-0x000000001E8A0000-0x000000001EBEA000-memory.dmp

memory/3736-28-0x0000000000400000-0x000000000055D000-memory.dmp

memory/3736-27-0x000000000041D000-0x000000000041E000-memory.dmp

memory/3436-29-0x0000000008540000-0x000000000861F000-memory.dmp

memory/756-30-0x0000000000320000-0x000000000045A000-memory.dmp

memory/3736-34-0x0000000000560000-0x0000000000660000-memory.dmp

memory/756-35-0x0000000000320000-0x000000000045A000-memory.dmp

memory/756-36-0x00000000007A0000-0x00000000007C8000-memory.dmp

memory/3436-37-0x0000000008540000-0x000000000861F000-memory.dmp

memory/3436-40-0x0000000008710000-0x00000000087CF000-memory.dmp