Malware Analysis Report

2025-01-02 02:49

Sample ID 241127-def56stkey
Target ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe
SHA256 ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed
Tags
sakula discovery persistence rat trojan
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

ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed

Threat Level: Known bad

The file ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula payload

Sakula family

Sakula

Executes dropped EXE

Deletes itself

Loads dropped DLL

Checks computer location settings

Adds Run key to start application

System Network Configuration Discovery: Internet Connection Discovery

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Runs ping.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-27 02:55

Signatures

Sakula family

sakula

Sakula payload

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-27 02:55

Reported

2024-11-27 02:57

Platform

win7-20240903-en

Max time kernel

96s

Max time network

104s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula payload

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

Deletes itself

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

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe N/A

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:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\PING.EXE N/A

System Network Configuration Discovery: Internet Connection Discovery

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

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2460 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2460 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2460 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2460 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2460 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2460 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2460 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2460 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Windows\SysWOW64\cmd.exe
PID 2460 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Windows\SysWOW64\cmd.exe
PID 2460 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Windows\SysWOW64\cmd.exe
PID 2460 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe C:\Windows\SysWOW64\cmd.exe
PID 2784 wrote to memory of 2892 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2784 wrote to memory of 2892 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2784 wrote to memory of 2892 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2784 wrote to memory of 2892 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe

"C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe"

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.savmpet.com udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp

Files

\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

MD5 a41c56711d820680ae15e3232c6b5894
SHA1 31572f67dc987dd967c9c1fc8e5c14ff7b2ffd6c
SHA256 e5eff37fb012eca9b133d252d7150cf9c9cc269b0a6995e4e4a42a84ab45d3da
SHA512 c85898d5fe1fd17c8967f8d91c4c328012b319ddc33b6e42c911f44974018abe3fa808e496ec28d4fca45aa1586dcea81fc8532a05c33d2d4f04df779ab9e294

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-27 02:55

Reported

2024-11-27 02:57

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

106s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe N/A

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:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\PING.EXE N/A

System Network Configuration Discovery: Internet Connection Discovery

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

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe

"C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe"

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\ec78ca127cf207ac0b6e9e4f91ebf24ca2567077474eb41c752c3527a9a8eeed.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 www.savmpet.com udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 229.198.34.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

MD5 6ac6bf07674d1702c98ae0a579e79bc6
SHA1 23178ed6f67d8c66a9173b3fb405c3d171ff1b3c
SHA256 f95b66180a143ad4b53c0b4843c33db5f6d9414f8bd364513d9b6cc49eba67c9
SHA512 2ce2937b08af6650752ce4f4cc3f9e3e93b098e995234b36e54b3a2af7f92570c208d977de0058c6fe26b57b773eda93e481da4f69522df52a7af79e5d8fa78d