Malware Analysis Report

2024-10-18 21:13

Sample ID 240711-cmq5nstbjq
Target 37508d924dfa7bd3551077a0a6e1a8c1_JaffaCakes118
SHA256 4c7d6a382214ce168e936f250698e6e67607fb8b419ed02bde62cd8bb6413004
Tags
emotet epoch1 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

4c7d6a382214ce168e936f250698e6e67607fb8b419ed02bde62cd8bb6413004

Threat Level: Known bad

The file 37508d924dfa7bd3551077a0a6e1a8c1_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch1 banker trojan

Emotet

Blocklisted process makes network request

Loads dropped DLL

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: RenamesItself

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-11 02:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-11 02:11

Reported

2024-07-11 02:14

Platform

win7-20240704-en

Max time kernel

148s

Max time network

148s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\37508d924dfa7bd3551077a0a6e1a8c1_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\Pjyst\iacc.wqm 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 2972 wrote to memory of 2120 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2972 wrote to memory of 2120 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2972 wrote to memory of 2120 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2972 wrote to memory of 2120 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2972 wrote to memory of 2120 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2972 wrote to memory of 2120 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2972 wrote to memory of 2120 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2120 wrote to memory of 2696 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2120 wrote to memory of 2696 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2120 wrote to memory of 2696 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2120 wrote to memory of 2696 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2120 wrote to memory of 2696 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2120 wrote to memory of 2696 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2120 wrote to memory of 2696 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2824 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2824 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2824 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2824 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2824 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2824 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2824 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\37508d924dfa7bd3551077a0a6e1a8c1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\37508d924dfa7bd3551077a0a6e1a8c1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Pjyst\iacc.wqm",knVKBqvqqQ

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Pjyst\iacc.wqm",#1

Network

Country Destination Domain Proto
RO 84.232.229.24:80 tcp
RO 84.232.229.24:80 tcp
FR 51.255.203.164:8080 tcp
FR 51.255.203.164:8080 tcp
DE 217.160.169.110:8080 tcp
DE 217.160.169.110:8080 tcp

Files

memory/2120-0-0x00000000002A0000-0x000000000033E000-memory.dmp

memory/2120-1-0x0000000000250000-0x0000000000277000-memory.dmp

memory/2120-2-0x00000000002A1000-0x0000000000304000-memory.dmp

memory/2696-5-0x0000000001FF0000-0x000000000208E000-memory.dmp

memory/2120-4-0x00000000002A1000-0x0000000000304000-memory.dmp

memory/2120-3-0x00000000002A0000-0x000000000033E000-memory.dmp

memory/2696-7-0x0000000001FF1000-0x0000000002054000-memory.dmp

memory/2696-6-0x0000000001FF0000-0x000000000208E000-memory.dmp

memory/2824-8-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2824-9-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2824-11-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2824-14-0x0000000000400000-0x000000000049E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-11 02:11

Reported

2024-07-11 02:14

Platform

win10v2004-20240709-en

Max time kernel

143s

Max time network

147s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\37508d924dfa7bd3551077a0a6e1a8c1_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

Loads dropped DLL

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\Azfdnyknwez\zhojfubvoq.rvl 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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\37508d924dfa7bd3551077a0a6e1a8c1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\37508d924dfa7bd3551077a0a6e1a8c1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Azfdnyknwez\zhojfubvoq.rvl",ecZXcZyLChItZt

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Azfdnyknwez\zhojfubvoq.rvl",#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
RO 84.232.229.24:80 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
FR 51.255.203.164:8080 tcp
DE 217.160.169.110:8080 tcp
ES 185.183.16.47:80 tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
CL 190.45.24.210:80 tcp
MX 187.162.248.237:80 tcp

Files

memory/1844-0-0x0000000000FC0000-0x0000000000FE7000-memory.dmp

memory/1844-1-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1844-3-0x0000000000400000-0x0000000000424000-memory.dmp

C:\Windows\SysWOW64\Azfdnyknwez\zhojfubvoq.rvl

MD5 37508d924dfa7bd3551077a0a6e1a8c1
SHA1 43dc773958bb8842530ff6b0138af4359dec4fdd
SHA256 4c7d6a382214ce168e936f250698e6e67607fb8b419ed02bde62cd8bb6413004
SHA512 d58ac138d512bde8609a45e8b6d4f7c86e822e53fba7dab80bdbc903265c135d7646abc5d6108b41e36d5b6570d846c7f3b27b111968e122cf824e4d2a8a59a0

memory/1844-2-0x0000000000400000-0x000000000049E000-memory.dmp

memory/4008-5-0x0000000000400000-0x000000000049E000-memory.dmp

memory/4008-7-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2028-9-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2028-10-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2028-11-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2028-13-0x0000000000400000-0x000000000049E000-memory.dmp