Malware Analysis Report

2024-10-18 21:16

Sample ID 240714-v6w45szhnq
Target 46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118
SHA256 579f2b267a445063c1d902de0d87cda4446bf3b21dd0897663de37ea635b9b1f
Tags
emotet epoch3 banker 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

579f2b267a445063c1d902de0d87cda4446bf3b21dd0897663de37ea635b9b1f

Threat Level: Known bad

The file 46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 banker trojan

Emotet

Blocklisted process makes network request

Drops file in System32 directory

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-14 17:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-14 17:36

Reported

2024-07-14 17:39

Platform

win7-20240708-en

Max time kernel

130s

Max time network

140s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118.dll,#1

Signatures

Emotet

trojan banker emotet

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\Bakryvccslq\wetnbdkgxd.ulk C:\Windows\SysWOW64\rundll32.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2640 wrote to memory of 2116 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2640 wrote to memory of 2116 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2640 wrote to memory of 2116 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2640 wrote to memory of 2116 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2640 wrote to memory of 2116 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2640 wrote to memory of 2116 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2640 wrote to memory of 2116 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 1688 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 1688 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 1688 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 1688 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 1688 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 1688 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 1688 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 2472 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 2472 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 2472 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 2472 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 2472 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 2472 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 2472 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bakryvccslq\wetnbdkgxd.ulk",YssJ

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bakryvccslq\wetnbdkgxd.ulk",#1

Network

Country Destination Domain Proto
AR 190.55.186.229:80 tcp
AR 190.55.186.229:80 tcp
TH 203.157.152.9:7080 tcp
TH 203.157.152.9:7080 tcp
SG 157.245.145.87:443 tcp
SG 157.245.145.87:443 tcp

Files

memory/2116-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2116-0-0x0000000000130000-0x000000000014F000-memory.dmp

memory/2116-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/1688-3-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2472-4-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2472-5-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2472-6-0x0000000010000000-0x0000000010023000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-14 17:36

Reported

2024-07-14 17:39

Platform

win10v2004-20240709-en

Max time kernel

93s

Max time network

95s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3640 wrote to memory of 4332 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3640 wrote to memory of 4332 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3640 wrote to memory of 4332 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46d5395d9c8e4bf51c117937799d0a34_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa 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 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

N/A