Malware Analysis Report

2025-08-11 03:49

Sample ID 240409-lcylfabf34
Target e9abcab523f9b60e654fa590ecf00948_JaffaCakes118
SHA256 39d81449ee8e4e0932370e423b61ebde268c8cdf7b8b5c1a859ecf24c12b49ed
Tags
evasion themida
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

39d81449ee8e4e0932370e423b61ebde268c8cdf7b8b5c1a859ecf24c12b49ed

Threat Level: Shows suspicious behavior

The file e9abcab523f9b60e654fa590ecf00948_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

evasion themida

Identifies Wine through registry keys

Themida packer

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-09 09:23

Signatures

Themida packer

themida
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: behavioral2

Detonation Overview

Submitted

2024-04-09 09:23

Reported

2024-04-09 09:26

Platform

win10v2004-20240226-en

Max time kernel

94s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe"

Signatures

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe N/A

Themida packer

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

Processes

C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa 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 72.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/1888-0-0x0000000000400000-0x000000000058F000-memory.dmp

memory/1888-1-0x0000000000400000-0x000000000058F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-09 09:23

Reported

2024-04-09 09:26

Platform

win7-20240319-en

Max time kernel

120s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe"

Signatures

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe N/A

Themida packer

themida
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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\BTStcFwd.log C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e9abcab523f9b60e654fa590ecf00948_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 smtps.uol.com.br udp
BR 200.147.35.207:587 smtps.uol.com.br tcp

Files

memory/2204-0-0x0000000000400000-0x000000000058F000-memory.dmp

memory/2204-1-0x0000000000400000-0x000000000058F000-memory.dmp

memory/2204-7-0x0000000004150000-0x0000000004151000-memory.dmp

memory/2204-23-0x00000000041F0000-0x00000000041F1000-memory.dmp

memory/2204-22-0x0000000004120000-0x0000000004121000-memory.dmp

memory/2204-21-0x0000000004170000-0x0000000004171000-memory.dmp

memory/2204-20-0x00000000040D0000-0x00000000040D1000-memory.dmp

memory/2204-19-0x0000000004470000-0x0000000004472000-memory.dmp

memory/2204-18-0x0000000004200000-0x0000000004201000-memory.dmp

memory/2204-17-0x0000000000650000-0x0000000000651000-memory.dmp

memory/2204-16-0x0000000004210000-0x0000000004211000-memory.dmp

memory/2204-15-0x00000000040E0000-0x00000000040E1000-memory.dmp

memory/2204-14-0x00000000041D0000-0x00000000041D1000-memory.dmp

memory/2204-13-0x0000000004230000-0x0000000004231000-memory.dmp

memory/2204-12-0x0000000004160000-0x0000000004161000-memory.dmp

memory/2204-11-0x00000000040F0000-0x00000000040F1000-memory.dmp

memory/2204-10-0x0000000004220000-0x0000000004221000-memory.dmp

memory/2204-9-0x00000000041A0000-0x00000000041A1000-memory.dmp

memory/2204-8-0x0000000004100000-0x0000000004101000-memory.dmp

memory/2204-6-0x0000000004130000-0x0000000004131000-memory.dmp

memory/2204-5-0x0000000004060000-0x0000000004061000-memory.dmp

memory/2204-4-0x0000000004070000-0x0000000004072000-memory.dmp

memory/2204-3-0x00000000040B0000-0x00000000040B1000-memory.dmp

memory/2204-2-0x00000000040C0000-0x00000000040C1000-memory.dmp

memory/2204-24-0x00000000041E0000-0x00000000041E1000-memory.dmp

memory/2204-26-0x00000000041B0000-0x00000000041B1000-memory.dmp

memory/2204-25-0x00000000043A0000-0x00000000043A2000-memory.dmp

memory/2204-27-0x0000000004140000-0x0000000004141000-memory.dmp

memory/2204-28-0x0000000004110000-0x0000000004111000-memory.dmp

memory/2204-29-0x0000000000400000-0x000000000058F000-memory.dmp

memory/2204-30-0x00000000040A0000-0x00000000040A1000-memory.dmp

memory/2204-31-0x0000000004090000-0x0000000004091000-memory.dmp

memory/2204-32-0x0000000000400000-0x000000000058F000-memory.dmp

memory/2204-33-0x0000000000400000-0x000000000058F000-memory.dmp

memory/2204-34-0x0000000000400000-0x000000000058F000-memory.dmp