Malware Analysis Report

2025-01-22 19:58

Sample ID 241016-xhb56szdnj
Target 4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118
SHA256 77659c50068e91462ede865d545e22cd1641e2f0af5fd7acf2026d22634ac024
Tags
defense_evasion discovery execution impact persistence ransomware
score
9/10

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
9/10

SHA256

77659c50068e91462ede865d545e22cd1641e2f0af5fd7acf2026d22634ac024

Threat Level: Likely malicious

The file 4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

defense_evasion discovery execution impact persistence ransomware

Deletes shadow copies

Drops startup file

Adds Run key to start application

Looks up external IP address via web service

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Interacts with shadow copies

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Uses Volume Shadow Copy service COM API

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 18:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 18:50

Reported

2024-10-16 18:53

Platform

win7-20240708-en

Max time kernel

133s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe"

Signatures

Deletes shadow copies

ransomware defense_evasion impact execution

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\817c058e.exe C:\Windows\syswow64\explorer.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*17c058 = "C:\\817c058e\\817c058e.exe" C:\Windows\syswow64\explorer.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\817c058e = "C:\\Users\\Admin\\AppData\\Roaming\\817c058e.exe" C:\Windows\syswow64\explorer.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*17c058e = "C:\\Users\\Admin\\AppData\\Roaming\\817c058e.exe" C:\Windows\syswow64\explorer.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\817c058 = "C:\\817c058e\\817c058e.exe" C:\Windows\syswow64\explorer.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-addr.es N/A N/A
N/A myexternalip.com N/A N/A

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\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\explorer.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\svchost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\vssadmin.exe N/A

Interacts with shadow copies

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\syswow64\vssadmin.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe N/A
N/A N/A C:\Windows\syswow64\explorer.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2432 wrote to memory of 2300 N/A C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe C:\Windows\syswow64\explorer.exe
PID 2432 wrote to memory of 2300 N/A C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe C:\Windows\syswow64\explorer.exe
PID 2432 wrote to memory of 2300 N/A C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe C:\Windows\syswow64\explorer.exe
PID 2432 wrote to memory of 2300 N/A C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe C:\Windows\syswow64\explorer.exe
PID 2300 wrote to memory of 2796 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\svchost.exe
PID 2300 wrote to memory of 2796 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\svchost.exe
PID 2300 wrote to memory of 2796 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\svchost.exe
PID 2300 wrote to memory of 2796 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\svchost.exe
PID 2300 wrote to memory of 2704 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\vssadmin.exe
PID 2300 wrote to memory of 2704 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\vssadmin.exe
PID 2300 wrote to memory of 2704 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\vssadmin.exe
PID 2300 wrote to memory of 2704 N/A C:\Windows\syswow64\explorer.exe C:\Windows\syswow64\vssadmin.exe

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe"

C:\Windows\syswow64\explorer.exe

"C:\Windows\syswow64\explorer.exe"

C:\Windows\syswow64\svchost.exe

-k netsvcs

C:\Windows\syswow64\vssadmin.exe

vssadmin.exe Delete Shadows /All /Quiet

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-addr.es udp
FR 188.165.164.184:80 ip-addr.es tcp
US 8.8.8.8:53 myexternalip.com udp
US 34.160.111.145:80 myexternalip.com tcp
US 8.8.8.8:53 kuzey-trans.com udp
US 8.8.8.8:53 d-makmusic.com udp
US 8.8.8.8:53 slova.bg udp
US 8.8.8.8:53 mud-trucks.com udp
US 8.8.8.8:53 lapinternetdanang.com udp
VN 137.59.106.120:80 lapinternetdanang.com tcp
VN 137.59.106.120:443 lapinternetdanang.com tcp
VN 137.59.106.120:443 lapinternetdanang.com tcp
VN 137.59.106.120:443 lapinternetdanang.com tcp
VN 137.59.106.120:443 lapinternetdanang.com tcp
US 8.8.8.8:53 avondgasten.com udp
US 8.8.8.8:53 bppeduli.org udp
ID 203.175.9.25:80 bppeduli.org tcp
US 8.8.8.8:53 hatec.gr udp
US 8.8.8.8:53 jqbabycare.com udp
US 8.8.8.8:53 tenteturk.com udp
TR 89.252.182.35:80 tenteturk.com tcp
US 8.8.8.8:53 panamaoibf.com udp
US 8.8.8.8:53 sciflyllc.com udp
US 185.230.63.171:80 sciflyllc.com tcp
US 185.230.63.171:443 sciflyllc.com tcp
US 8.8.8.8:53 r11.o.lencr.org udp
GB 2.23.210.75:80 r11.o.lencr.org tcp
US 8.8.8.8:53 www.sciflyllc.com udp
US 34.149.87.45:443 www.sciflyllc.com tcp
US 34.149.87.45:443 www.sciflyllc.com tcp
US 34.149.87.45:443 www.sciflyllc.com tcp
US 34.149.87.45:443 www.sciflyllc.com tcp
US 8.8.8.8:53 popchatapps.com udp
US 8.8.8.8:53 adoptwalk.com udp
US 8.8.8.8:53 snrshopping.com udp
US 8.8.8.8:53 qianshousheying.com udp
US 8.8.8.8:53 raghu.net udp
US 70.35.204.148:80 raghu.net tcp
US 8.8.8.8:53 geetanjalidental.com udp
IN 62.72.28.253:80 geetanjalidental.com tcp
IN 62.72.28.253:443 geetanjalidental.com tcp
US 8.8.8.8:53 crl.microsoft.com udp
US 8.8.8.8:53 linecellardemo.net udp
US 8.8.8.8:53 laptopsinhvien.net udp
US 104.21.27.196:80 laptopsinhvien.net tcp
GB 2.19.117.22:80 crl.microsoft.com tcp
US 104.21.27.196:443 laptopsinhvien.net tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 www.microsoft.com udp
GB 2.23.205.233:80 www.microsoft.com tcp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 ketoanhaphat.com udp
GB 45.32.183.112:80 ketoanhaphat.com tcp
GB 45.32.183.112:443 ketoanhaphat.com tcp
US 8.8.8.8:53 e5.o.lencr.org udp
GB 2.23.210.75:80 e5.o.lencr.org tcp
GB 45.32.183.112:443 ketoanhaphat.com tcp
US 8.8.8.8:53 svante.cat udp
US 8.8.8.8:53 itvn.biz udp
US 13.248.169.48:80 itvn.biz tcp
US 8.8.8.8:53 metalg.com.br udp
BR 45.71.212.5:80 metalg.com.br tcp

Files

memory/2432-0-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2432-1-0x0000000000400000-0x0000000000425000-memory.dmp

memory/2300-2-0x0000000000080000-0x00000000000A5000-memory.dmp

memory/2432-3-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2432-4-0x0000000000400000-0x0000000000425000-memory.dmp

memory/2300-5-0x0000000000080000-0x00000000000A5000-memory.dmp

memory/2796-9-0x0000000000110000-0x0000000000135000-memory.dmp

memory/2796-10-0x0000000000110000-0x0000000000135000-memory.dmp

memory/2300-11-0x0000000000080000-0x00000000000A5000-memory.dmp

memory/2796-12-0x0000000000110000-0x0000000000135000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 18:50

Reported

2024-10-16 18:53

Platform

win10v2004-20241007-en

Max time kernel

123s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe"

Signatures

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\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4e7339f4f37cb50e00c6860979b28d8a_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3772 -ip 3772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 452

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 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/3772-0-0x00000000005D0000-0x00000000005D1000-memory.dmp