Malware Analysis Report

2025-01-18 00:24

Sample ID 240613-l8jr6athpd
Target E-dekont_pdf.exe
SHA256 77f75d57217646debafefa81bb803dbabb9cbd67c8f99c4906ab91843e42a1b7
Tags
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

77f75d57217646debafefa81bb803dbabb9cbd67c8f99c4906ab91843e42a1b7

Threat Level: Shows suspicious behavior

The file E-dekont_pdf.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary


Loads dropped DLL

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 10:12

Signatures

Unsigned PE

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

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-13 10:12

Reported

2024-06-13 10:14

Platform

win7-20240611-en

Max time kernel

118s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 220

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-13 10:12

Reported

2024-06-13 10:14

Platform

win10v2004-20240508-en

Max time kernel

143s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4384 wrote to memory of 1492 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4384 wrote to memory of 1492 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4384 wrote to memory of 1492 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1492 -ip 1492

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 612

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 --field-trial-handle=3640,i,14648456027158448592,4956305794400220180,262144 --variations-seed-version --mojo-platform-channel-handle=4380 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 10:12

Reported

2024-06-13 10:14

Platform

win7-20240220-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe"

Signatures

Loads dropped DLL

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

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\Caterinas246.ini C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe N/A
File opened for modification C:\Windows\Fonts\Arbejderne.ini C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe N/A
File opened for modification C:\Windows\Fonts\Vaagelampens125.afs C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe N/A
File created C:\Windows\Fonts\risengryn\haardhndede.lnk C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe

"C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe"

Network

N/A

Files

\Users\Admin\AppData\Local\Temp\nsyC9F.tmp\System.dll

MD5 4add245d4ba34b04f213409bfe504c07
SHA1 ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
SHA256 9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
SHA512 1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 10:12

Reported

2024-06-13 10:14

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe"

Signatures

Loads dropped DLL

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2960 set thread context of 4560 N/A C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Fonts\risengryn\haardhndede.lnk C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe N/A

Enumerates physical storage devices

Suspicious behavior: MapViewOfSection

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

Processes

C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe

"C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe"

C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe

"C:\Users\Admin\AppData\Local\Temp\E-dekont_pdf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 131.253.33.237:443 g.bing.com tcp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 237.33.253.131.in-addr.arpa udp
US 8.8.8.8:53 216.197.17.2.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 52.111.227.14:443 tcp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 219.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 koora-syria-live.online udp
US 8.8.8.8:53 213.143.182.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nso36FF.tmp\System.dll

MD5 4add245d4ba34b04f213409bfe504c07
SHA1 ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
SHA256 9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
SHA512 1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

memory/2960-19-0x0000000077AC1000-0x0000000077BE1000-memory.dmp

memory/2960-20-0x0000000074925000-0x0000000074926000-memory.dmp

memory/4560-21-0x0000000077B48000-0x0000000077B49000-memory.dmp

memory/4560-22-0x0000000000820000-0x0000000001A74000-memory.dmp

memory/4560-24-0x0000000077AC1000-0x0000000077BE1000-memory.dmp