Malware Analysis Report

2025-01-03 06:14

Sample ID 240522-g4e6yseg79
Target 664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118
SHA256 03ae00f9fec44e8a68cf1fa1ef776935c4a82646489ffa868c271e5546dab58f
Tags
emotet 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

03ae00f9fec44e8a68cf1fa1ef776935c4a82646489ffa868c271e5546dab58f

Threat Level: Known bad

The file 664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet banker trojan

Emotet

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-22 06:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-22 06:21

Reported

2024-05-22 06:23

Platform

win7-20240221-en

Max time kernel

132s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat C:\Windows\SysWOW64\earconshader.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94DF80E4-0488-4721-A1B6-02772A79C990} C:\Windows\SysWOW64\earconshader.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\earconshader.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\earconshader.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-dc-20-01-45-ff\WpadDecisionTime = c0f2e45110acda01 C:\Windows\SysWOW64\earconshader.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-dc-20-01-45-ff\WpadDecision = "0" C:\Windows\SysWOW64\earconshader.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94DF80E4-0488-4721-A1B6-02772A79C990}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\earconshader.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-dc-20-01-45-ff C:\Windows\SysWOW64\earconshader.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94DF80E4-0488-4721-A1B6-02772A79C990}\WpadDecisionTime = c0f2e45110acda01 C:\Windows\SysWOW64\earconshader.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94DF80E4-0488-4721-A1B6-02772A79C990}\4e-dc-20-01-45-ff C:\Windows\SysWOW64\earconshader.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-dc-20-01-45-ff\WpadDecisionReason = "1" C:\Windows\SysWOW64\earconshader.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\earconshader.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\earconshader.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\earconshader.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\earconshader.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94DF80E4-0488-4721-A1B6-02772A79C990}\WpadDecisionReason = "1" C:\Windows\SysWOW64\earconshader.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94DF80E4-0488-4721-A1B6-02772A79C990}\WpadDecision = "0" C:\Windows\SysWOW64\earconshader.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\earconshader.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\earconshader.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe"

C:\Windows\SysWOW64\earconshader.exe

"C:\Windows\SysWOW64\earconshader.exe"

C:\Windows\SysWOW64\earconshader.exe

"C:\Windows\SysWOW64\earconshader.exe"

Network

Country Destination Domain Proto
JP 133.242.164.31:7080 tcp
JP 133.242.164.31:7080 tcp
KR 115.71.233.127:443 tcp
KR 115.71.233.127:443 tcp
JP 153.121.36.202:7080 tcp
JP 153.121.36.202:7080 tcp

Files

memory/2848-6-0x0000000000240000-0x0000000000250000-memory.dmp

memory/2848-5-0x0000000000350000-0x000000000036A000-memory.dmp

memory/2848-4-0x0000000000370000-0x000000000038A000-memory.dmp

memory/2848-0-0x0000000000370000-0x000000000038A000-memory.dmp

memory/2880-7-0x0000000000300000-0x000000000031A000-memory.dmp

memory/2880-11-0x0000000000300000-0x000000000031A000-memory.dmp

memory/2880-13-0x0000000000270000-0x0000000000280000-memory.dmp

memory/2880-12-0x00000000002E0000-0x00000000002FA000-memory.dmp

memory/2744-14-0x00000000003E0000-0x00000000003FA000-memory.dmp

memory/2744-18-0x00000000003E0000-0x00000000003FA000-memory.dmp

memory/2744-20-0x0000000000330000-0x0000000000340000-memory.dmp

memory/2744-19-0x00000000003C0000-0x00000000003DA000-memory.dmp

memory/2908-25-0x00000000003D0000-0x00000000003EA000-memory.dmp

memory/2908-21-0x00000000003D0000-0x00000000003EA000-memory.dmp

memory/2880-26-0x0000000000400000-0x0000000000475000-memory.dmp

memory/2880-27-0x00000000002E0000-0x00000000002FA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-22 06:21

Reported

2024-05-22 06:23

Platform

win10v2004-20240508-en

Max time kernel

144s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Enumerates physical storage devices

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\664c1f524fdf0e1c9c50776c8bb7473d_JaffaCakes118.exe"

C:\Windows\SysWOW64\subsvsc.exe

"C:\Windows\SysWOW64\subsvsc.exe"

C:\Windows\SysWOW64\subsvsc.exe

"C:\Windows\SysWOW64\subsvsc.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 --no-appcompat-clear --field-trial-handle=4244,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=3900 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
JP 133.242.164.31:7080 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
KR 115.71.233.127:443 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
JP 153.121.36.202:7080 tcp
US 8.8.8.8:53 107.211.222.173.in-addr.arpa udp
US 50.31.0.160:8080 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 45.63.17.206:8080 tcp
US 208.78.100.202:8080 tcp
FR 62.75.191.231:8080 tcp

Files

memory/4116-0-0x0000000000A70000-0x0000000000A8A000-memory.dmp

memory/4116-4-0x0000000000A70000-0x0000000000A8A000-memory.dmp

memory/4116-6-0x0000000000A90000-0x0000000000AA0000-memory.dmp

memory/4116-5-0x0000000000650000-0x000000000066A000-memory.dmp

memory/1004-11-0x0000000000880000-0x000000000089A000-memory.dmp

memory/1004-7-0x0000000000880000-0x000000000089A000-memory.dmp

memory/1004-12-0x0000000000860000-0x000000000087A000-memory.dmp

memory/1004-13-0x0000000000650000-0x0000000000660000-memory.dmp

memory/1948-14-0x0000000000DC0000-0x0000000000DDA000-memory.dmp

memory/1948-18-0x0000000000DC0000-0x0000000000DDA000-memory.dmp

memory/1948-20-0x00000000004C0000-0x00000000004D0000-memory.dmp

memory/1948-19-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

memory/2564-21-0x0000000000830000-0x000000000084A000-memory.dmp

memory/2564-25-0x0000000000830000-0x000000000084A000-memory.dmp

memory/1948-26-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

memory/1004-27-0x0000000000400000-0x0000000000475000-memory.dmp

memory/1004-28-0x0000000000860000-0x000000000087A000-memory.dmp