Malware Analysis Report

2024-10-18 21:16

Sample ID 240715-wf1kbavdnf
Target 4ac3664fd33f5c531b44506989dcdc84_JaffaCakes118
SHA256 bd4ab6eea89638a0942b861a50481109a98c637fb25d0cdee529ce5886405f7a
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

bd4ab6eea89638a0942b861a50481109a98c637fb25d0cdee529ce5886405f7a

Threat Level: Known bad

The file 4ac3664fd33f5c531b44506989dcdc84_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: RenamesItself

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-15 17:52

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-15 17:52

Reported

2024-07-15 17:55

Platform

win7-20240704-en

Max time kernel

131s

Max time network

142s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ac3664fd33f5c531b44506989dcdc84_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 2564 wrote to memory of 1720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 1720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 1720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 1720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 1720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 1720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 1720 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\4ac3664fd33f5c531b44506989dcdc84_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ac3664fd33f5c531b44506989dcdc84_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/1720-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/1720-0-0x00000000001C0000-0x00000000001DF000-memory.dmp

memory/1720-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/1720-3-0x0000000010000000-0x0000000010023000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-15 17:52

Reported

2024-07-15 17:55

Platform

win10v2004-20240709-en

Max time kernel

137s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ac3664fd33f5c531b44506989dcdc84_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\Vuicoxmkvjyqrubb\ppzwvzjeirnwcbp.nld 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 3308 wrote to memory of 2400 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3308 wrote to memory of 2400 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3308 wrote to memory of 2400 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2400 wrote to memory of 2856 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2400 wrote to memory of 2856 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2400 wrote to memory of 2856 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\4ac3664fd33f5c531b44506989dcdc84_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ac3664fd33f5c531b44506989dcdc84_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Vuicoxmkvjyqrubb\ppzwvzjeirnwcbp.nld",FYgGdGhZ

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 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 22.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/2400-0-0x00000000012B0000-0x00000000012CF000-memory.dmp

memory/2400-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2400-3-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Vuicoxmkvjyqrubb\ppzwvzjeirnwcbp.nld

MD5 4ac3664fd33f5c531b44506989dcdc84
SHA1 46b30b64e1892c42c8eb02a2ce5822e242716190
SHA256 bd4ab6eea89638a0942b861a50481109a98c637fb25d0cdee529ce5886405f7a
SHA512 d75f8d95c70871597f7c37572258a2737c19d3a45d3fc35c420fd172dd813407669ab2b0c68597bf49db989fad88b629020336666d3394640b24b76781824d35