Malware Analysis Report

2025-08-05 23:33

Sample ID 250119-w8n2zszphv
Target JaffaCakes118_cfab3eabefc57c89260df28a862ba93c
SHA256 6c7cdd1c62cef41160ca49712ff92ac8c3d6538ff26c1eac29770a79c2cc3698
Tags
cycbot backdoor discovery persistence rat spyware stealer upx
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

6c7cdd1c62cef41160ca49712ff92ac8c3d6538ff26c1eac29770a79c2cc3698

Threat Level: Known bad

The file JaffaCakes118_cfab3eabefc57c89260df28a862ba93c was found to be: Known bad.

Malicious Activity Summary

cycbot backdoor discovery persistence rat spyware stealer upx

Cycbot family

Detects Cycbot payload

Cycbot

Modifies WinLogon for persistence

Reads user/profile data of web browsers

UPX packed file

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-19 18:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-19 18:35

Reported

2025-01-19 18:38

Platform

win7-20241010-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe"

Signatures

Cycbot

backdoor rat cycbot

Cycbot family

cycbot

Detects Cycbot 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

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe" C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe N/A

Reads user/profile data of web browsers

spyware stealer

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
N/A N/A 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\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2060 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe
PID 2060 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe
PID 2060 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe
PID 2060 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe
PID 2060 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe
PID 2060 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe
PID 2060 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe
PID 2060 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe"

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp

Network

Country Destination Domain Proto
US 8.8.8.8:53 psfk.com udp
DE 35.158.87.123:80 psfk.com tcp
US 8.8.8.8:53 zonedg.com udp
US 8.8.8.8:53 zonedg.com udp
US 8.8.8.8:53 fxsystemsone.com udp
US 8.8.8.8:53 zonedg.com udp
US 8.8.8.8:53 zonedg.com udp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 103.224.212.214:80 zonedg.com tcp
US 8.8.8.8:53 www.google.com udp
GB 142.250.187.196:80 www.google.com tcp
US 8.8.8.8:53 killprocessoffline.com udp
GB 142.250.187.196:80 www.google.com tcp
GB 142.250.187.196:80 www.google.com tcp
N/A 127.0.0.1:60646 tcp
N/A 127.0.0.1:60646 tcp

Files

memory/2060-1-0x0000000000400000-0x000000000048C000-memory.dmp

memory/2060-2-0x0000000000400000-0x000000000048C000-memory.dmp

memory/2076-12-0x0000000000400000-0x000000000048C000-memory.dmp

memory/2076-13-0x0000000000400000-0x000000000048C000-memory.dmp

memory/2076-14-0x000000000056B000-0x0000000000585000-memory.dmp

memory/2060-15-0x0000000000400000-0x000000000048C000-memory.dmp

C:\Users\Admin\AppData\Roaming\72A0.617

MD5 d55bde2f9c20abbdbfa2683baccab584
SHA1 6bc30d72d35855a223192984045eab6e395c716b
SHA256 a86eb43833b4e2a741814882d3a91038061aca37820fcce8a66c3fe93298d4b2
SHA512 e4a16a622316a8ca13b0d25b7e6c4daa6cdb48a182253be0967d2afb15dad0b2ab241892c8076fa8e064a5545854b52665dc9c15534c7f1aad31fc258c768218

C:\Users\Admin\AppData\Roaming\72A0.617

MD5 1fcde450aa4f9834871b4a5a36477ddd
SHA1 b5d65d1fff4ce2d777085e99b9c820b932c16417
SHA256 04456318e6fe17411cb5f3686338239b546ba4643ed5ec49d59d746e7b7587e8
SHA512 d2b051a37fdd0c9717ba56151bac050c87d36186fee72dc7a68522c52f6f266a552dd5ac44e414348bdbaa6b21976bb80cc94d4d0b08145c8ce21e2d7285e19c

memory/2496-82-0x0000000000400000-0x000000000048C000-memory.dmp

memory/2496-83-0x0000000000400000-0x000000000048C000-memory.dmp

memory/2060-85-0x0000000000400000-0x000000000048C000-memory.dmp

C:\Users\Admin\AppData\Roaming\72A0.617

MD5 8343ca043fbdda4ed667232b058eab88
SHA1 9a569353ce60d57451909581582a13c479c38f6a
SHA256 8b142561dfa444a282f8ffdb29cb7f1235ddfc57d30a807891a9ba2eefdfe590
SHA512 b8d7beb998ac9f480daf2c75593d6f63d6f13a74f2b2c28ad59518effc543e73335fc082e72819a1dae09d3f00041191d20eb22fcf1802d1c7bc6cddce4bac2a

memory/2060-179-0x0000000000400000-0x000000000048C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-19 18:35

Reported

2025-01-19 18:44

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.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\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfab3eabefc57c89260df28a862ba93c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1144 -ip 1144

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 81.14.97.104.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 80.14.97.104.in-addr.arpa udp
US 8.8.8.8:53 8.153.16.2.in-addr.arpa udp

Files

N/A