Malware Analysis Report

2024-10-18 21:14

Sample ID 240711-mb5tssvclf
Target 38b784792a440ac402fcf7db2989d41e_JaffaCakes118
SHA256 f0de045676fb781d8b8a85c98e3310be35b4d5142901ee63caf24b3bfe573c45
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

f0de045676fb781d8b8a85c98e3310be35b4d5142901ee63caf24b3bfe573c45

Threat Level: Known bad

The file 38b784792a440ac402fcf7db2989d41e_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 use of WriteProcessMemory

Suspicious behavior: RenamesItself

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-11 10:18

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-11 10:18

Reported

2024-07-11 10:20

Platform

win7-20240708-en

Max time kernel

148s

Max time network

148s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b784792a440ac402fcf7db2989d41e_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\Bxqjzqnuy\sfsmoupm.suv 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 1988 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1988 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1988 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1988 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1988 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1988 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1988 wrote to memory of 2692 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2692 wrote to memory of 2648 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2692 wrote to memory of 2648 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2692 wrote to memory of 2648 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2692 wrote to memory of 2648 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2692 wrote to memory of 2648 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2692 wrote to memory of 2648 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2692 wrote to memory of 2648 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2648 wrote to memory of 2724 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2648 wrote to memory of 2724 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2648 wrote to memory of 2724 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2648 wrote to memory of 2724 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2648 wrote to memory of 2724 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2648 wrote to memory of 2724 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2648 wrote to memory of 2724 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\38b784792a440ac402fcf7db2989d41e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b784792a440ac402fcf7db2989d41e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bxqjzqnuy\sfsmoupm.suv",yHHyGXmWyMygt

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bxqjzqnuy\sfsmoupm.suv",#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/2692-0-0x0000000000310000-0x00000000003AE000-memory.dmp

memory/2692-2-0x0000000000311000-0x0000000000374000-memory.dmp

memory/2692-1-0x0000000000200000-0x0000000000227000-memory.dmp

memory/2692-3-0x0000000000310000-0x00000000003AE000-memory.dmp

memory/2692-4-0x0000000000311000-0x0000000000374000-memory.dmp

memory/2648-5-0x00000000009A0000-0x0000000000A3E000-memory.dmp

memory/2648-7-0x00000000009A1000-0x0000000000A04000-memory.dmp

memory/2648-6-0x00000000009A0000-0x0000000000A3E000-memory.dmp

memory/2724-8-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2724-9-0x0000000000400000-0x000000000049E000-memory.dmp

memory/2724-11-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2724-14-0x0000000000400000-0x000000000049E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-11 10:18

Reported

2024-07-11 10:20

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

152s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b784792a440ac402fcf7db2989d41e_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\Atwlksxrukeuss\nazymemzprgya.app 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\38b784792a440ac402fcf7db2989d41e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b784792a440ac402fcf7db2989d41e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Atwlksxrukeuss\nazymemzprgya.app",SmcPLSkH

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Atwlksxrukeuss\nazymemzprgya.app",#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
RO 84.232.229.24:80 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
FR 51.255.203.164:8080 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
DE 217.160.169.110:8080 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
ES 185.183.16.47:80 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
CL 190.45.24.210:80 tcp
MX 187.162.248.237:80 tcp
US 8.8.8.8:53 95.16.208.104.in-addr.arpa udp

Files

memory/4460-0-0x0000000002910000-0x0000000002937000-memory.dmp

memory/4460-1-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4460-3-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4460-2-0x0000000000400000-0x000000000049E000-memory.dmp

C:\Windows\SysWOW64\Atwlksxrukeuss\nazymemzprgya.app

MD5 38b784792a440ac402fcf7db2989d41e
SHA1 bd15078210f7352003d2efc0ecc02074670b1445
SHA256 f0de045676fb781d8b8a85c98e3310be35b4d5142901ee63caf24b3bfe573c45
SHA512 7cf647b5d5a519a50d35048bdda21b08a290b8dfccd1b910fb27e9faade433b3b76fa8c5bc038c7ed97f1f8b67887285aa5a484a2cb1acf1133ccf5695c28e14

memory/3396-5-0x0000000000400000-0x000000000049E000-memory.dmp

memory/1084-9-0x0000000000400000-0x000000000049E000-memory.dmp

memory/1084-8-0x0000000000400000-0x000000000049E000-memory.dmp

memory/1084-10-0x0000000000400000-0x000000000049E000-memory.dmp

memory/1084-12-0x0000000000400000-0x000000000049E000-memory.dmp