Malware Analysis Report

2024-10-18 21:16

Sample ID 240716-h9l25atfjf
Target 4d53937fe9a9645c0f4b85063aa55128_JaffaCakes118
SHA256 3f8650c0514dfde3b04b7c3b8835e0c69512cbee9cdd15fbdf81c34c670fc69d
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

3f8650c0514dfde3b04b7c3b8835e0c69512cbee9cdd15fbdf81c34c670fc69d

Threat Level: Known bad

The file 4d53937fe9a9645c0f4b85063aa55128_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

2024-07-16 07:26

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-16 07:26

Reported

2024-07-16 07:28

Platform

win7-20240704-en

Max time kernel

130s

Max time network

144s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d53937fe9a9645c0f4b85063aa55128_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 2356 wrote to memory of 2952 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2952 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2952 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2952 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2952 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2952 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2952 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\4d53937fe9a9645c0f4b85063aa55128_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d53937fe9a9645c0f4b85063aa55128_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/2952-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2952-0-0x00000000002A0000-0x00000000002BF000-memory.dmp

memory/2952-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2952-3-0x0000000010000000-0x0000000010023000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-16 07:26

Reported

2024-07-16 07:28

Platform

win10v2004-20240709-en

Max time kernel

103s

Max time network

146s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d53937fe9a9645c0f4b85063aa55128_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\Dvbewqpwzp\cmcsjuaog.gxs 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 4840 wrote to memory of 964 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4840 wrote to memory of 964 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4840 wrote to memory of 964 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 964 wrote to memory of 2980 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 964 wrote to memory of 2980 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 964 wrote to memory of 2980 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\4d53937fe9a9645c0f4b85063aa55128_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d53937fe9a9645c0f4b85063aa55128_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Dvbewqpwzp\cmcsjuaog.gxs",lExMz

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 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 52.111.227.14:443 tcp

Files

memory/964-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/964-0-0x0000000000510000-0x000000000052F000-memory.dmp

memory/964-3-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Dvbewqpwzp\cmcsjuaog.gxs

MD5 4d53937fe9a9645c0f4b85063aa55128
SHA1 9a941992e9a805cce954741a3b05c695c1793ab0
SHA256 3f8650c0514dfde3b04b7c3b8835e0c69512cbee9cdd15fbdf81c34c670fc69d
SHA512 d985dfd6d74d7e18f7021f78c9198285ca5e54265c690818c0c562e7dcbb21f84463c2fee5f745cecc799a69cc9cc6fdea770d32e8a02223315571b390d6210c