Malware Analysis Report

2025-01-03 06:14

Sample ID 240521-yd6dwsgd7y
Target 64853fffc1026b825bc5ea19dee5cc41_JaffaCakes118
SHA256 a3a993c23a06d2bacbe059fff674ec44672b09ed32e3bc2b69513f4d3b077081
Tags
emotet 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

a3a993c23a06d2bacbe059fff674ec44672b09ed32e3bc2b69513f4d3b077081

Threat Level: Known bad

The file 64853fffc1026b825bc5ea19dee5cc41_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

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-21 19:41

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 19:41

Reported

2024-05-21 19:44

Platform

win10v2004-20240226-en

Max time kernel

140s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\461340.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\461340.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Windows\SysWOW64\oobecabinet.exe

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

C:\Windows\SysWOW64\oobecabinet.exe

"C:\Windows\SysWOW64\oobecabinet.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 --mojo-platform-channel-handle=3808 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
IE 213.79.36.67:80 tcp
US 24.90.102.247:443 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
MX 189.250.174.245:7080 tcp
US 199.38.204.218:80 tcp
US 8.8.8.8:53 84.65.42.20.in-addr.arpa udp
US 67.251.11.28:443 tcp

Files

memory/1384-1-0x0000000000A90000-0x0000000000AA6000-memory.dmp

memory/1384-2-0x0000000000AB0000-0x0000000000AC6000-memory.dmp

memory/1384-6-0x0000000000AB0000-0x0000000000AC6000-memory.dmp

memory/1384-7-0x00000000006A0000-0x00000000006B0000-memory.dmp

memory/2436-9-0x0000000000A40000-0x0000000000A56000-memory.dmp

memory/2436-14-0x0000000000A60000-0x0000000000A76000-memory.dmp

memory/2436-10-0x0000000000A60000-0x0000000000A76000-memory.dmp

memory/2436-15-0x0000000000A80000-0x0000000000A90000-memory.dmp

memory/1384-16-0x0000000000A90000-0x0000000000AA6000-memory.dmp

memory/3756-18-0x0000000000600000-0x0000000000616000-memory.dmp

memory/3756-23-0x0000000000640000-0x0000000000656000-memory.dmp

memory/3756-24-0x0000000000620000-0x0000000000630000-memory.dmp

memory/3756-19-0x0000000000640000-0x0000000000656000-memory.dmp

memory/1336-30-0x0000000001230000-0x0000000001246000-memory.dmp

memory/1336-26-0x0000000001230000-0x0000000001246000-memory.dmp

memory/3756-31-0x0000000000600000-0x0000000000616000-memory.dmp

memory/2436-32-0x0000000000400000-0x000000000046C000-memory.dmp

memory/2436-33-0x0000000000A40000-0x0000000000A56000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-21 19:41

Reported

2024-05-21 19:43

Platform

win7-20240220-en

Max time kernel

133s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\461340.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\mutemfidl.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\Connections C:\Windows\SysWOW64\mutemfidl.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\mutemfidl.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7109D19-33EB-4414-85B6-F15CABCADD96} C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7109D19-33EB-4414-85B6-F15CABCADD96}\WpadDecision = "0" C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7109D19-33EB-4414-85B6-F15CABCADD96}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-d5-5b-c8-96-7e\WpadDecisionReason = "1" C:\Windows\SysWOW64\mutemfidl.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\mutemfidl.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7109D19-33EB-4414-85B6-F15CABCADD96}\WpadDecisionReason = "1" C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-d5-5b-c8-96-7e\WpadDecisionTime = 507e0fe8b6abda01 C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f013a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7109D19-33EB-4414-85B6-F15CABCADD96}\WpadDecisionTime = 507e0fe8b6abda01 C:\Windows\SysWOW64\mutemfidl.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-d5-5b-c8-96-7e C:\Windows\SysWOW64\mutemfidl.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7109D19-33EB-4414-85B6-F15CABCADD96}\0a-d5-5b-c8-96-7e C:\Windows\SysWOW64\mutemfidl.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-d5-5b-c8-96-7e\WpadDecision = "0" C:\Windows\SysWOW64\mutemfidl.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\461340.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Users\Admin\AppData\Local\Temp\461340.exe

"C:\Users\Admin\AppData\Local\Temp\461340.exe"

C:\Windows\SysWOW64\mutemfidl.exe

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

C:\Windows\SysWOW64\mutemfidl.exe

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

Network

Country Destination Domain Proto
IE 213.79.36.67:80 tcp
IE 213.79.36.67:80 tcp
US 24.90.102.247:443 tcp
US 24.90.102.247:443 tcp
MX 189.250.174.245:7080 tcp
MX 189.250.174.245:7080 tcp

Files

memory/1660-5-0x0000000002710000-0x0000000002726000-memory.dmp

memory/1660-1-0x0000000002710000-0x0000000002726000-memory.dmp

memory/1660-6-0x00000000026F0000-0x0000000002706000-memory.dmp

memory/1660-7-0x0000000000510000-0x0000000000520000-memory.dmp

memory/2756-15-0x0000000000360000-0x0000000000370000-memory.dmp

memory/2756-14-0x0000000000610000-0x0000000000626000-memory.dmp

memory/2756-13-0x00000000025E0000-0x00000000025F6000-memory.dmp

memory/2756-9-0x00000000025E0000-0x00000000025F6000-memory.dmp

memory/1660-16-0x00000000026F0000-0x0000000002706000-memory.dmp

memory/2632-18-0x0000000000490000-0x00000000004A6000-memory.dmp

memory/2632-23-0x00000000004B0000-0x00000000004C6000-memory.dmp

memory/2632-19-0x00000000004B0000-0x00000000004C6000-memory.dmp

memory/2632-24-0x00000000004D0000-0x00000000004E0000-memory.dmp

memory/2556-32-0x0000000000240000-0x0000000000250000-memory.dmp

memory/2556-31-0x00000000004B0000-0x00000000004C6000-memory.dmp

memory/2556-30-0x00000000004D0000-0x00000000004E6000-memory.dmp

memory/2556-26-0x00000000004D0000-0x00000000004E6000-memory.dmp

memory/2632-33-0x0000000000490000-0x00000000004A6000-memory.dmp

memory/2756-34-0x0000000000400000-0x000000000046C000-memory.dmp

memory/2756-35-0x0000000000610000-0x0000000000626000-memory.dmp

memory/2556-36-0x00000000004B0000-0x00000000004C6000-memory.dmp