Malware Analysis Report

2024-10-18 21:16

Sample ID 240714-mdfbxswfkk
Target 4565ed27f92ec76cc92aa1ac21e29ebd_JaffaCakes118
SHA256 0f451bea3ce8293b82b6bc4cd8018536745b9ef70d82eca8bf13052cede5842d
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0f451bea3ce8293b82b6bc4cd8018536745b9ef70d82eca8bf13052cede5842d

Threat Level: Known bad

The file 4565ed27f92ec76cc92aa1ac21e29ebd_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 behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-14 10:20

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-14 10:20

Reported

2024-07-14 10:23

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4565ed27f92ec76cc92aa1ac21e29ebd_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\Mwfvmrdzghyafoq\jfyrkhjtjewaeb.tyl 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 2288 wrote to memory of 4184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2288 wrote to memory of 4184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2288 wrote to memory of 4184 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4184 wrote to memory of 3416 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4184 wrote to memory of 3416 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4184 wrote to memory of 3416 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\4565ed27f92ec76cc92aa1ac21e29ebd_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4565ed27f92ec76cc92aa1ac21e29ebd_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mwfvmrdzghyafoq\jfyrkhjtjewaeb.tyl",CQQBbqRNCzLMR

Network

Country Destination Domain Proto
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.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 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/4184-0-0x0000000000A60000-0x0000000000A7F000-memory.dmp

memory/4184-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/4184-3-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Mwfvmrdzghyafoq\jfyrkhjtjewaeb.tyl

MD5 4565ed27f92ec76cc92aa1ac21e29ebd
SHA1 667909e2cdb72c781454b7bd54e015b0905c88e6
SHA256 0f451bea3ce8293b82b6bc4cd8018536745b9ef70d82eca8bf13052cede5842d
SHA512 c9cbb20c6d22ac30835e5ea3e9081e9cdc15f58f62621ed82886158c2d2a986be062e93c5d439738baed3c1cbe6684d3cda9baee2907eca69c81ff199161dbad

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-14 10:20

Reported

2024-07-14 10:23

Platform

win7-20240708-en

Max time kernel

131s

Max time network

139s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4565ed27f92ec76cc92aa1ac21e29ebd_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\Mknjcxctjbsqsf\oqrnwsscxvavu.lyc 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 2356 wrote to memory of 2368 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2368 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2368 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2368 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2368 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2368 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 2368 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 2348 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 2348 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 2348 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 2348 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 2348 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 2348 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 2348 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 2324 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 2324 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 2324 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 2324 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 2324 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 2324 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2348 wrote to memory of 2324 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\4565ed27f92ec76cc92aa1ac21e29ebd_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4565ed27f92ec76cc92aa1ac21e29ebd_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mknjcxctjbsqsf\oqrnwsscxvavu.lyc",SQQKXUg

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mknjcxctjbsqsf\oqrnwsscxvavu.lyc",#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/2368-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2368-0-0x0000000000170000-0x000000000018F000-memory.dmp

memory/2368-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2348-4-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2348-3-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2324-5-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2324-6-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2324-7-0x0000000010000000-0x0000000010023000-memory.dmp