Malware Analysis Report

2024-12-06 03:10

Sample ID 241121-ynt4lszqbj
Target e8384166957076efd104eaf0443b1cda502c5d6e3bdc3f0ea4764b5adb77ee16
SHA256 e8384166957076efd104eaf0443b1cda502c5d6e3bdc3f0ea4764b5adb77ee16
Tags
guloader discovery downloader
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e8384166957076efd104eaf0443b1cda502c5d6e3bdc3f0ea4764b5adb77ee16

Threat Level: Known bad

The file e8384166957076efd104eaf0443b1cda502c5d6e3bdc3f0ea4764b5adb77ee16 was found to be: Known bad.

Malicious Activity Summary

guloader discovery downloader

Guloader family

Guloader,Cloudeye

Checks QEMU agent file

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: MapViewOfSection

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 19:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 19:56

Reported

2024-11-21 19:58

Platform

win7-20240708-en

Max time kernel

149s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

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\Original copies of shipment docs.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2236 set thread context of 2784 N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe

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\Original copies of shipment docs.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe

"C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe"

C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe

"C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.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 crl.microsoft.com udp
NL 2.19.194.251:80 crl.microsoft.com tcp
US 8.8.8.8:53 www.microsoft.com udp
ES 2.22.222.32:80 www.microsoft.com tcp

Files

memory/2236-2-0x00000000002B0000-0x00000000002BC000-memory.dmp

memory/2236-3-0x0000000076F60000-0x0000000077036000-memory.dmp

memory/2236-4-0x0000000076D71000-0x0000000076E72000-memory.dmp

memory/2236-8-0x00000000002B0000-0x00000000002BC000-memory.dmp

memory/2784-10-0x0000000076D70000-0x0000000076F19000-memory.dmp

memory/2236-9-0x0000000076D70000-0x0000000076F19000-memory.dmp

memory/2236-7-0x0000000076F60000-0x0000000077036000-memory.dmp

memory/2784-5-0x0000000000400000-0x0000000000553000-memory.dmp

memory/2236-11-0x0000000076D70000-0x0000000076F19000-memory.dmp

memory/2784-30-0x0000000000400000-0x0000000000553000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 19:56

Reported

2024-11-21 19:58

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

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\Original copies of shipment docs.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3384 set thread context of 1896 N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe

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\Original copies of shipment docs.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe

"C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe"

C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe

"C:\Users\Admin\AppData\Local\Temp\Original copies of shipment docs.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 96.36.72.23.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 drive.google.com udp
GB 142.250.180.14:443 drive.google.com tcp
US 8.8.8.8:53 14.180.250.142.in-addr.arpa udp
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 3.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 35.77.123.92.in-addr.arpa udp
US 8.8.8.8:53 168.36.72.23.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/3384-2-0x00000000022B0000-0x00000000022BC000-memory.dmp

memory/3384-3-0x0000000077081000-0x00000000771A1000-memory.dmp

memory/3384-4-0x0000000077081000-0x00000000771A1000-memory.dmp

memory/1896-5-0x0000000000400000-0x000000000055D000-memory.dmp

memory/3384-7-0x00000000022B0000-0x00000000022BC000-memory.dmp

memory/1896-9-0x0000000077081000-0x00000000771A1000-memory.dmp

memory/1896-8-0x0000000000560000-0x0000000000660000-memory.dmp

memory/1896-19-0x0000000000560000-0x0000000000660000-memory.dmp

memory/1896-20-0x0000000000400000-0x000000000055D000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-11-21 19:56

Reported

2024-11-21 19:59

Platform

win7-20241010-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\pic05678063.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

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\pic05678063.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\pic05678063.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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2412 set thread context of 844 N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe C:\Users\Admin\AppData\Local\Temp\pic05678063.exe

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\pic05678063.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\pic05678063.exe

"C:\Users\Admin\AppData\Local\Temp\pic05678063.exe"

C:\Users\Admin\AppData\Local\Temp\pic05678063.exe

"C:\Users\Admin\AppData\Local\Temp\pic05678063.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 www.microsoft.com udp
ES 2.22.222.32:80 www.microsoft.com tcp

Files

memory/2412-2-0x0000000000760000-0x000000000076C000-memory.dmp

memory/2412-3-0x00000000779B1000-0x0000000077AB2000-memory.dmp

memory/2412-4-0x00000000779B0000-0x0000000077B59000-memory.dmp

memory/2412-5-0x0000000000760000-0x000000000076C000-memory.dmp

memory/2412-8-0x0000000000760000-0x000000000076C000-memory.dmp

memory/844-9-0x00000000779B0000-0x0000000077B59000-memory.dmp

memory/844-6-0x0000000000400000-0x0000000000553000-memory.dmp

memory/844-10-0x0000000000400000-0x0000000000553000-memory.dmp

memory/844-27-0x0000000000400000-0x0000000000553000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-11-21 19:56

Reported

2024-11-21 19:58

Platform

win10v2004-20241007-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\pic05678063.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

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\pic05678063.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\pic05678063.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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1120 set thread context of 1428 N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe C:\Users\Admin\AppData\Local\Temp\pic05678063.exe

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\pic05678063.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\pic05678063.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\pic05678063.exe

"C:\Users\Admin\AppData\Local\Temp\pic05678063.exe"

C:\Users\Admin\AppData\Local\Temp\pic05678063.exe

"C:\Users\Admin\AppData\Local\Temp\pic05678063.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 168.36.72.23.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.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 14.180.250.142.in-addr.arpa udp
US 8.8.8.8:53 3.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 35.77.123.92.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/1120-2-0x0000000002220000-0x000000000222C000-memory.dmp

memory/1120-3-0x0000000077731000-0x0000000077851000-memory.dmp

memory/1120-4-0x0000000077731000-0x0000000077851000-memory.dmp

memory/1120-7-0x0000000002220000-0x000000000222C000-memory.dmp

memory/1428-9-0x0000000077731000-0x0000000077851000-memory.dmp

memory/1428-8-0x0000000000560000-0x0000000000660000-memory.dmp

memory/1428-5-0x0000000000400000-0x000000000055D000-memory.dmp

memory/1428-19-0x0000000000560000-0x0000000000660000-memory.dmp

memory/1428-20-0x0000000000400000-0x000000000055D000-memory.dmp