Malware Analysis Report

2024-10-18 21:16

Sample ID 240715-ynt4lswgmj
Target 4b2b5c34ea7880c85bc3080ccb2c4c12_JaffaCakes118
SHA256 e719e379918a3a3183cf08068d8a910a92129271f4c4af5d8132a806d080c777
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

e719e379918a3a3183cf08068d8a910a92129271f4c4af5d8132a806d080c777

Threat Level: Known bad

The file 4b2b5c34ea7880c85bc3080ccb2c4c12_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 banker trojan

Emotet

Blocklisted process makes network request

Loads dropped DLL

Drops file in System32 directory

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: RenamesItself

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-15 19:56

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-15 19:56

Reported

2024-07-15 19:58

Platform

win7-20240708-en

Max time kernel

148s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b2b5c34ea7880c85bc3080ccb2c4c12_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

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 use of WriteProcessMemory

Description Indicator Process Target
PID 2316 wrote to memory of 2992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 2992 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\4b2b5c34ea7880c85bc3080ccb2c4c12_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b2b5c34ea7880c85bc3080ccb2c4c12_JaffaCakes118.dll,#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/2992-0-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2992-1-0x00000000000C0000-0x00000000000DF000-memory.dmp

memory/2992-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2992-3-0x0000000010000000-0x0000000010023000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-15 19:56

Reported

2024-07-15 19:58

Platform

win10v2004-20240709-en

Max time kernel

137s

Max time network

96s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b2b5c34ea7880c85bc3080ccb2c4c12_JaffaCakes118.dll,#1

Signatures

Emotet

trojan banker emotet

Loads dropped DLL

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

Enumerates physical storage devices

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 2664 wrote to memory of 2008 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2664 wrote to memory of 2008 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2664 wrote to memory of 2008 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 3344 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 3344 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2008 wrote to memory of 3344 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\4b2b5c34ea7880c85bc3080ccb2c4c12_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b2b5c34ea7880c85bc3080ccb2c4c12_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ivcejbsyywgsoh\rwduiiwnzlavm.xgs",SZBzcdWDcWMSXcV

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2008-0-0x00000000025B0000-0x00000000025CF000-memory.dmp

memory/2008-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2008-3-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Ivcejbsyywgsoh\rwduiiwnzlavm.xgs

MD5 4b2b5c34ea7880c85bc3080ccb2c4c12
SHA1 8ee3175e37f0a2ef37c148e9192ee1a4f466ff37
SHA256 e719e379918a3a3183cf08068d8a910a92129271f4c4af5d8132a806d080c777
SHA512 fea65a7931e2c7654305e1cedd11bee69e0edc42e0349bfcdbd73bf3ecb9fe0b6d72dcdcd18cc1cd8da1b238f548627570a4e3c9296ba8cead4a51df2dd5f551