Malware Analysis Report

2024-09-22 22:51

Sample ID 240615-3sksysteqq
Target b0bd63567eff00c049e47464683d4beb_JaffaCakes118
SHA256 0aa89703dc8099d1826e841148967b6b9af92c19f33b44513768edc1e74560e9
Tags
emotet epoch3 banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

0aa89703dc8099d1826e841148967b6b9af92c19f33b44513768edc1e74560e9

Threat Level: Known bad

The file b0bd63567eff00c049e47464683d4beb_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 banker trojan

Emotet

Emotet payload

Executes dropped EXE

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-15 23:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 23:46

Reported

2024-06-15 23:49

Platform

win7-20240221-en

Max time kernel

131s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_JaffaCakes118.exe"

Network

Country Destination Domain Proto
JP 116.91.240.96:80 tcp
JP 116.91.240.96:80 tcp
IN 167.71.227.113:8080 tcp
IN 167.71.227.113:8080 tcp
CO 190.85.46.52:7080 tcp
CO 190.85.46.52:7080 tcp
US 162.144.42.60:8080 tcp
US 162.144.42.60:8080 tcp

Files

memory/2084-4-0x0000000000270000-0x0000000000280000-memory.dmp

memory/2084-0-0x0000000000250000-0x0000000000262000-memory.dmp

memory/2084-7-0x0000000000230000-0x000000000023F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 23:46

Reported

2024-06-15 23:49

Platform

win10v2004-20240611-en

Max time kernel

140s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_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
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Windows.Media.Speech\uReFSv1.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\Windows.Media.Speech\uReFSv1.exe C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b0bd63567eff00c049e47464683d4beb_JaffaCakes118.exe"

C:\Windows\SysWOW64\Windows.Media.Speech\uReFSv1.exe

"C:\Windows\SysWOW64\Windows.Media.Speech\uReFSv1.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4288,i,4778049104057176787,6631751660692402210,262144 --variations-seed-version --mojo-platform-channel-handle=1032 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
JP 116.91.240.96:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 21.121.18.2.in-addr.arpa udp
IN 167.71.227.113:8080 tcp
NL 52.111.243.30:443 tcp
CO 190.85.46.52:7080 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 162.144.42.60:8080 tcp
PK 202.166.170.43:80 tcp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
FI 95.216.205.155:8080 tcp
JP 120.51.34.254:80 tcp

Files

memory/4160-0-0x00000000005E0000-0x00000000005F2000-memory.dmp

memory/4160-4-0x0000000000600000-0x0000000000610000-memory.dmp

memory/4160-7-0x00000000004C0000-0x00000000004CF000-memory.dmp

memory/4160-9-0x0000000000400000-0x00000000004AD000-memory.dmp

C:\Windows\SysWOW64\Windows.Media.Speech\uReFSv1.exe

MD5 b0bd63567eff00c049e47464683d4beb
SHA1 f76de952ad5e85166f7d57657d6bf5241c482afb
SHA256 0aa89703dc8099d1826e841148967b6b9af92c19f33b44513768edc1e74560e9
SHA512 04270f5fe94dcd75fadca878aad3113451e7df76666bfb5ffeaec850360164bb5bc70efa65f88a3466a3a8de3c42c1b4d5425c6f8d5d3826b33bb3b650b082ed

memory/3460-10-0x0000000002130000-0x0000000002142000-memory.dmp

memory/3460-14-0x0000000000740000-0x0000000000750000-memory.dmp