Malware Analysis Report

2024-10-18 21:13

Sample ID 240709-wlwtbaydqh
Target 3166fd8e2a9e75a90bbb837abb6b28e5_JaffaCakes118
SHA256 b17e76e5b272f8aba02e0d61b7efc552a534d691f587a66b7f800b1216d6338d
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

b17e76e5b272f8aba02e0d61b7efc552a534d691f587a66b7f800b1216d6338d

Threat Level: Known bad

The file 3166fd8e2a9e75a90bbb837abb6b28e5_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

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-09 18:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-09 18:01

Reported

2024-07-09 19:17

Platform

win7-20240704-en

Max time kernel

149s

Max time network

147s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3166fd8e2a9e75a90bbb837abb6b28e5_JaffaCakes118.dll,#1

Signatures

Emotet

trojan banker emotet

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\Gfxbzi\irfvf.apa 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
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 2680 wrote to memory of 2696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2680 wrote to memory of 2696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2680 wrote to memory of 2696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2680 wrote to memory of 2696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2680 wrote to memory of 2696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2680 wrote to memory of 2696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2680 wrote to memory of 2696 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2836 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2836 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2836 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2836 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2836 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2836 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2696 wrote to memory of 2836 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2836 wrote to memory of 2736 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2836 wrote to memory of 2736 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2836 wrote to memory of 2736 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2836 wrote to memory of 2736 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2836 wrote to memory of 2736 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2836 wrote to memory of 2736 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2836 wrote to memory of 2736 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\3166fd8e2a9e75a90bbb837abb6b28e5_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3166fd8e2a9e75a90bbb837abb6b28e5_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gfxbzi\irfvf.apa",XYUzMKR

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gfxbzi\irfvf.apa",#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
N/A 185.183.16.47:80 tcp

Files

memory/2696-0-0x0000000000170000-0x000000000020E000-memory.dmp

memory/2696-2-0x0000000000171000-0x00000000001D4000-memory.dmp

memory/2696-1-0x0000000000280000-0x00000000002A7000-memory.dmp

memory/2696-3-0x0000000000170000-0x000000000020E000-memory.dmp

memory/2696-4-0x0000000000171000-0x00000000001D4000-memory.dmp

memory/2836-5-0x0000000000800000-0x000000000089E000-memory.dmp

memory/2836-7-0x0000000000801000-0x0000000000864000-memory.dmp

memory/2836-6-0x0000000000800000-0x000000000089E000-memory.dmp

memory/2736-8-0x0000000000380000-0x000000000041E000-memory.dmp

memory/2736-9-0x0000000000381000-0x00000000003E4000-memory.dmp

memory/2736-10-0x0000000000380000-0x000000000041E000-memory.dmp

memory/2736-12-0x0000000000381000-0x00000000003E4000-memory.dmp

memory/2736-15-0x0000000000380000-0x000000000041E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-09 18:01

Reported

2024-07-09 19:16

Platform

win10v2004-20240709-en

Max time kernel

142s

Max time network

147s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3166fd8e2a9e75a90bbb837abb6b28e5_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\Cohwrvshmycpjtyg\lextpggwmtmxdun.zob 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\3166fd8e2a9e75a90bbb837abb6b28e5_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3166fd8e2a9e75a90bbb837abb6b28e5_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Cohwrvshmycpjtyg\lextpggwmtmxdun.zob",lbDZyixXj

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Cohwrvshmycpjtyg\lextpggwmtmxdun.zob",#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
RO 84.232.229.24:80 tcp
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 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
CL 190.45.24.210:80 tcp
MX 187.162.248.237:80 tcp

Files

memory/1152-0-0x0000000001EF0000-0x0000000001F8E000-memory.dmp

memory/1152-2-0x0000000001EF0000-0x0000000001F14000-memory.dmp

memory/1152-1-0x0000000001F90000-0x0000000001FB7000-memory.dmp

C:\Windows\SysWOW64\Cohwrvshmycpjtyg\lextpggwmtmxdun.zob

MD5 3166fd8e2a9e75a90bbb837abb6b28e5
SHA1 1fb673c02e2f542997fdaed4db5d2f307e7a36b1
SHA256 b17e76e5b272f8aba02e0d61b7efc552a534d691f587a66b7f800b1216d6338d
SHA512 0980e31b4b1d30faee4cab14525d17900287c60d66202622c1f1c09a18eeda1655d80cea0531533c0ba10cda90a8a7d8bf73e79fcf481444f75d50ff0cc6126d

memory/1152-4-0x0000000001EF0000-0x0000000001F14000-memory.dmp

memory/1152-3-0x0000000001EF0000-0x0000000001F8E000-memory.dmp

memory/2052-7-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2052-6-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2720-10-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2720-9-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2720-11-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2720-13-0x0000000000400000-0x000000000049E000-memory.dmp