Malware Analysis Report

2025-03-15 07:56

Sample ID 240807-mkkj8azhna
Target ad20a5da9acba492406b1117268a7951.apk
SHA256 89c5e17054a661b5cd4562dc7e6e7a1529e6fd91067af6b299bdcef608365b57
Tags
discovery macro macro_on_action
score
8/10

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
8/10

SHA256

89c5e17054a661b5cd4562dc7e6e7a1529e6fd91067af6b299bdcef608365b57

Threat Level: Likely malicious

The file ad20a5da9acba492406b1117268a7951.apk was found to be: Likely malicious.

Malicious Activity Summary

discovery macro macro_on_action

Office macro that triggers on suspicious action

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Modifies registry class

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-07 10:31

Signatures

Office macro that triggers on suspicious action

macro macro_on_action
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-07 10:31

Reported

2024-08-07 10:34

Platform

win7-20240704-en

Max time kernel

121s

Max time network

122s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk

Signatures

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\ C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.apk\ = "apk_auto_file" C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell\Read\command C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.apk C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell\Read C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" C:\Windows\system32\rundll32.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe

"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk"

Network

N/A

Files

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

MD5 9b4e503183225f376dd35279b93d2eb5
SHA1 52e06d6719adbf7c2e0fe4d8e0655746858b42a8
SHA256 7bac81bb48fb46b34fb204591122141fb4e7f8a159c2212f1c2cab6c0103c652
SHA512 4b6fdef87fbb8dc03d35de99c198e575c3d848ad74c2b836557549c7da98d5b56c46e547802f89d176c58ef4e12ea5327a50e765e7f593422cf0326a5e1ea75e

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-07 10:31

Reported

2024-08-07 10:34

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

100s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000_Classes\Local Settings C:\Windows\system32\cmd.exe N/A
Key created \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 71.190.18.2.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

N/A