Malware Analysis Report

2025-01-03 05:45

Sample ID 240729-rpy1mawfqf
Target 4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118
SHA256 a18bd9e09049f728f20343bd6977781ac19aec4c05d408b1e40dd5d483685395
Tags
emotet epoch1 banker discovery 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

a18bd9e09049f728f20343bd6977781ac19aec4c05d408b1e40dd5d483685395

Threat Level: Known bad

The file 4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch1 banker discovery trojan

Emotet

Emotet payload

Executes dropped EXE

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: RenamesItself

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-29 14:22

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 14:22

Reported

2024-07-29 21:40

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Emotet payload

trojan banker
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 128.92.203.42:80 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
FR 37.187.161.206:8080 tcp
TH 202.29.239.162:443 tcp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
RU 80.87.201.221:7080 tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
AR 190.188.245.242:80 tcp
US 12.163.208.58:80 tcp

Files

memory/4120-4-0x00000000005B0000-0x00000000005C0000-memory.dmp

memory/4120-7-0x0000000000580000-0x000000000058F000-memory.dmp

memory/4120-0-0x0000000000590000-0x00000000005A2000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-29 14:22

Reported

2024-07-29 21:43

Platform

win7-20240729-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Emotet payload

trojan banker
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\mfc110kor\mobsync.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\mfc110kor\mobsync.exe C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\mfc110kor\mobsync.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4bb9fd74a8c1c317c1284778109eb2bb_JaffaCakes118.exe"

C:\Windows\SysWOW64\mfc110kor\mobsync.exe

"C:\Windows\SysWOW64\mfc110kor\mobsync.exe"

Network

Country Destination Domain Proto
US 128.92.203.42:80 tcp
US 128.92.203.42:80 tcp
FR 37.187.161.206:8080 tcp
FR 37.187.161.206:8080 tcp
TH 202.29.239.162:443 tcp
TH 202.29.239.162:443 tcp
RU 80.87.201.221:7080 tcp

Files

memory/2716-4-0x0000000000030000-0x0000000000040000-memory.dmp

memory/2716-7-0x0000000000020000-0x000000000002F000-memory.dmp

memory/2716-0-0x0000000000230000-0x0000000000242000-memory.dmp

C:\Windows\SysWOW64\mfc110kor\mobsync.exe

MD5 4bb9fd74a8c1c317c1284778109eb2bb
SHA1 cf5755c97dac6275e846c5fedce99a30f6d6ffc7
SHA256 a18bd9e09049f728f20343bd6977781ac19aec4c05d408b1e40dd5d483685395
SHA512 55f1a17b2fa920d7e3a1f7d3e6e66dc00720ef98ec5502be726bac0a9774d49253f1b54e97dbfb8962a55fe8f5092def27189a66ab7335d880504d00da08a175

memory/2716-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2736-10-0x00000000001C0000-0x00000000001D2000-memory.dmp