Malware Analysis Report

2024-11-13 18:44

Sample ID 231014-rca32afa8t
Target NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe
SHA256 61398e6b900f17750e3069094b2a560f7c58f4432d38e200837012cbe465a065
Tags
upx sakula 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

61398e6b900f17750e3069094b2a560f7c58f4432d38e200837012cbe465a065

Threat Level: Known bad

The file NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe was found to be: Known bad.

Malicious Activity Summary

upx sakula persistence rat trojan

Sakula payload

Sakula

Sakula family

UPX packed file

Checks computer location settings

Loads dropped DLL

Deletes itself

Executes dropped EXE

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Runs ping.exe

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-14 14:02

Signatures

Sakula family

sakula

Sakula payload

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

UPX packed file

upx
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

2023-10-14 14:02

Reported

2023-10-15 01:44

Platform

win7-20230831-en

Max time kernel

127s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe"

Signatures

Sakula

trojan rat sakula

Sakula payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\MediaCenter.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe N/A

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe N/A

Enumerates physical storage devices

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\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1420 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1420 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1420 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1420 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1420 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 1420 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 1420 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 1420 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 2724 wrote to memory of 3020 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2724 wrote to memory of 3020 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2724 wrote to memory of 3020 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2724 wrote to memory of 3020 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe"

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

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.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\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 www.northpoleroute.com udp
US 3.33.130.190:80 www.northpoleroute.com tcp
US 3.33.130.190:443 www.northpoleroute.com tcp
US 3.33.130.190:443 www.northpoleroute.com tcp
US 3.33.130.190:443 www.northpoleroute.com tcp

Files

memory/1420-0-0x0000000000400000-0x0000000000435000-memory.dmp

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

MD5 ad13e1d3b438167d0844dd36a8637fad
SHA1 efd008384bcc2f308199423c51c7798fea4e0ea6
SHA256 22bd8d6ed97599e687d6cd1e1c28706594adbc11dac37e339353146e39644539
SHA512 22215d54f748712752272775279c7eea2123fa88cdf852740a211c609f5b8bb9a5f92b1c3428080ceee3c9baf42550a91848f0c6e8d054e5eddca0351f6a7c42

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

MD5 ad13e1d3b438167d0844dd36a8637fad
SHA1 efd008384bcc2f308199423c51c7798fea4e0ea6
SHA256 22bd8d6ed97599e687d6cd1e1c28706594adbc11dac37e339353146e39644539
SHA512 22215d54f748712752272775279c7eea2123fa88cdf852740a211c609f5b8bb9a5f92b1c3428080ceee3c9baf42550a91848f0c6e8d054e5eddca0351f6a7c42

memory/2476-6-0x0000000000400000-0x0000000000435000-memory.dmp

memory/1420-7-0x0000000000400000-0x0000000000435000-memory.dmp

memory/1420-8-0x00000000005D0000-0x0000000000605000-memory.dmp

memory/2476-9-0x0000000000400000-0x0000000000435000-memory.dmp

memory/1420-10-0x0000000000400000-0x0000000000435000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab5987.tmp

MD5 f3441b8572aae8801c04f3060b550443
SHA1 4ef0a35436125d6821831ef36c28ffaf196cda15
SHA256 6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA512 5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

C:\Users\Admin\AppData\Local\Temp\Tar59C9.tmp

MD5 9441737383d21192400eca82fda910ec
SHA1 725e0d606a4fc9ba44aa8ffde65bed15e65367e4
SHA256 bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
SHA512 7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-14 14:02

Reported

2023-10-15 01:45

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe"

Signatures

Sakula

trojan rat sakula

Sakula payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe N/A

Executes dropped EXE

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

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe N/A

Enumerates physical storage devices

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\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe"

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

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.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\NEAS.1c1b19fed2e385b82c356d163a813060_JC.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 54.120.234.20.in-addr.arpa udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.polarroute.com udp
US 8.8.8.8:53 www.northpoleroute.com udp
US 3.33.130.190:80 www.northpoleroute.com tcp
US 8.8.8.8:53 190.130.33.3.in-addr.arpa udp
US 3.33.130.190:443 www.northpoleroute.com tcp
US 3.33.130.190:443 www.northpoleroute.com tcp
US 8.8.8.8:53 24.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 3.33.130.190:443 www.northpoleroute.com tcp

Files

memory/3648-0-0x0000000000400000-0x0000000000435000-memory.dmp

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

MD5 b9dda7326f8e35823b908a75bf90e2d3
SHA1 4080534a71a1cdd194c741c4c482021ecffd8707
SHA256 6acf46ca71295bbe7d96f2d2bf9b66db19c18384df624557ba9319c802cc18b6
SHA512 4eafe87e4cabc25c54e21c3603e1c1837aeff931ea5f8761713ffa8e9c8f08c943dd8dcca17c68b90705cc45c8695a5372fccfc96156969f83115da4bb5cb7fd

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

MD5 b9dda7326f8e35823b908a75bf90e2d3
SHA1 4080534a71a1cdd194c741c4c482021ecffd8707
SHA256 6acf46ca71295bbe7d96f2d2bf9b66db19c18384df624557ba9319c802cc18b6
SHA512 4eafe87e4cabc25c54e21c3603e1c1837aeff931ea5f8761713ffa8e9c8f08c943dd8dcca17c68b90705cc45c8695a5372fccfc96156969f83115da4bb5cb7fd

memory/704-5-0x0000000000400000-0x0000000000435000-memory.dmp

memory/3648-6-0x0000000000400000-0x0000000000435000-memory.dmp

memory/704-7-0x0000000000400000-0x0000000000435000-memory.dmp

memory/3648-8-0x0000000000400000-0x0000000000435000-memory.dmp