Malware Analysis Report

2025-06-16 03:44

Sample ID 240325-nz289ahg5s
Target ddf0eae98a27510ce4060af0d7cfb106
SHA256 b98f8392e8aff131ce1415483c1e38750dabe7dcb8c0a42dcc66c5ad6b139933
Tags
guloader downloader persistence
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

b98f8392e8aff131ce1415483c1e38750dabe7dcb8c0a42dcc66c5ad6b139933

Threat Level: Known bad

The file ddf0eae98a27510ce4060af0d7cfb106 was found to be: Known bad.

Malicious Activity Summary

guloader downloader persistence

Guloader,Cloudeye

Checks QEMU agent file

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-25 11:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-25 11:50

Reported

2024-03-25 11:53

Platform

win7-20240215-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe"

Signatures

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\ddf0eae98a27510ce4060af0d7cfb106.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Program Files (x86)\internet explorer\ieinstal.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\circumnutatory = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Chield5\\ecarte.exe" C:\Program Files (x86)\internet explorer\ieinstal.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe N/A
N/A N/A C:\Program Files (x86)\internet explorer\ieinstal.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2832 set thread context of 1384 N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe C:\Program Files (x86)\internet explorer\ieinstal.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe

"C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe"

C:\Program Files (x86)\internet explorer\ieinstal.exe

"C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe"

Network

Country Destination Domain Proto
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp

Files

memory/2832-2-0x0000000000240000-0x0000000000252000-memory.dmp

memory/2832-3-0x00000000770C0000-0x0000000077269000-memory.dmp

memory/2832-4-0x00000000772B0000-0x0000000077386000-memory.dmp

memory/2832-5-0x00000000772B0000-0x0000000077386000-memory.dmp

memory/1384-6-0x00000000000D0000-0x00000000001D0000-memory.dmp

memory/1384-7-0x00000000000D0000-0x00000000001D0000-memory.dmp

memory/1384-8-0x00000000770C0000-0x0000000077269000-memory.dmp

memory/1384-9-0x00000000772B0000-0x0000000077386000-memory.dmp

memory/2832-10-0x0000000000240000-0x0000000000252000-memory.dmp

memory/1384-12-0x00000000000D0000-0x00000000001D0000-memory.dmp

memory/2832-13-0x0000000000240000-0x0000000000252000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-25 11:50

Reported

2024-03-25 11:53

Platform

win10v2004-20240226-en

Max time kernel

138s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe"

Signatures

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\ddf0eae98a27510ce4060af0d7cfb106.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Program Files (x86)\internet explorer\ieinstal.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\circumnutatory = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Chield5\\ecarte.exe" C:\Program Files (x86)\internet explorer\ieinstal.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe N/A
N/A N/A C:\Program Files (x86)\internet explorer\ieinstal.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4764 set thread context of 112 N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe C:\Program Files (x86)\internet explorer\ieinstal.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe

"C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe"

C:\Program Files (x86)\internet explorer\ieinstal.exe

"C:\Users\Admin\AppData\Local\Temp\ddf0eae98a27510ce4060af0d7cfb106.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
NL 37.0.10.149:80 tcp
NL 37.0.10.149:80 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
NL 37.0.10.149:80 tcp
US 8.8.8.8:53 209.143.182.52.in-addr.arpa udp

Files

memory/4764-2-0x0000000002310000-0x0000000002322000-memory.dmp

memory/4764-3-0x00000000779A1000-0x0000000077AC1000-memory.dmp

memory/4764-4-0x00000000779A1000-0x0000000077AC1000-memory.dmp

memory/112-5-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

memory/4764-6-0x0000000002310000-0x0000000002322000-memory.dmp

memory/112-7-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

memory/112-9-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

memory/4764-10-0x0000000002310000-0x0000000002322000-memory.dmp