Malware Analysis Report

2024-10-24 21:03

Sample ID 240908-f1ynfs1cke
Target d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118
SHA256 38a389ae3b625c324dd44b8707169407bf5a39a3310841da29db13f30a3a41ec
Tags
cryptone packer emotet banker discovery 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

38a389ae3b625c324dd44b8707169407bf5a39a3310841da29db13f30a3a41ec

Threat Level: Known bad

The file d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

cryptone packer emotet banker discovery trojan

Emotet

CryptOne packer

Drops file in System32 directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-08 05:21

Signatures

CryptOne packer

cryptone packer
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-08 05:20

Reported

2024-09-08 05:23

Platform

win7-20240704-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_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\wfpsingle.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\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\wfpsingle.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\wfpsingle.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadDecision = "0" C:\Windows\SysWOW64\wfpsingle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd\WpadDecisionReason = "1" C:\Windows\SysWOW64\wfpsingle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\wfpsingle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\wfpsingle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A} C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadDecisionTime = 909eebf8ae01db01 C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd\WpadDecisionTime = 909eebf8ae01db01 C:\Windows\SysWOW64\wfpsingle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f018a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\WpadDecisionReason = "1" C:\Windows\SysWOW64\wfpsingle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7BFCE0B-1293-4EFE-9844-29826F954C0A}\0a-84-80-90-f2-bd C:\Windows\SysWOW64\wfpsingle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-84-80-90-f2-bd\WpadDecision = "0" C:\Windows\SysWOW64\wfpsingle.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe

--3028d603

C:\Windows\SysWOW64\wfpsingle.exe

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

C:\Windows\SysWOW64\wfpsingle.exe

--7e9a8a5f

Network

Country Destination Domain Proto
MX 201.97.58.156:8443 tcp
MX 201.97.58.156:8443 tcp
MX 189.230.171.255:990 tcp
MX 189.230.171.255:990 tcp
US 72.161.250.4:80 tcp
US 72.161.250.4:80 tcp

Files

memory/1700-0-0x0000000000220000-0x000000000023B000-memory.dmp

memory/1700-1-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1700-4-0x0000000000400000-0x000000000041D000-memory.dmp

memory/1700-3-0x0000000000220000-0x000000000023B000-memory.dmp

memory/1960-5-0x0000000000400000-0x0000000000459000-memory.dmp

memory/2544-6-0x0000000000400000-0x0000000000459000-memory.dmp

memory/1960-7-0x0000000000400000-0x0000000000459000-memory.dmp

memory/1960-10-0x0000000000400000-0x000000000041D000-memory.dmp

memory/2520-11-0x0000000000400000-0x0000000000459000-memory.dmp

memory/2520-12-0x0000000000400000-0x0000000000459000-memory.dmp

memory/2520-13-0x0000000000400000-0x000000000041D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-08 05:20

Reported

2024-09-08 05:23

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_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\INetCache\Content.IE5 C:\Windows\SysWOW64\avgculture.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\avgculture.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\avgculture.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\avgculture.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\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\avgculture.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\avgculture.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\avgculture.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\avgculture.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\avgculture.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\d3a225b52a96a561e17679a714f8f0ae_JaffaCakes118.exe

--3028d603

C:\Windows\SysWOW64\avgculture.exe

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

C:\Windows\SysWOW64\avgculture.exe

--ed713c4e

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
MX 201.97.58.156:8443 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 72.161.250.4:80 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
QA 37.210.168.251:80 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
AR 181.23.229.192:80 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
DE 185.94.252.3:443 tcp

Files

memory/4260-0-0x0000000000600000-0x000000000061B000-memory.dmp

memory/4260-1-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4260-4-0x0000000000600000-0x000000000061B000-memory.dmp

memory/3760-5-0x0000000000400000-0x0000000000459000-memory.dmp

memory/3760-6-0x0000000000400000-0x0000000000459000-memory.dmp

memory/1536-7-0x0000000000400000-0x0000000000459000-memory.dmp

memory/1536-8-0x0000000000400000-0x0000000000459000-memory.dmp

memory/3760-13-0x0000000000400000-0x000000000041D000-memory.dmp

memory/4884-14-0x0000000000400000-0x0000000000459000-memory.dmp

memory/4884-15-0x0000000000400000-0x0000000000459000-memory.dmp

memory/4884-16-0x0000000000400000-0x0000000000459000-memory.dmp

memory/4884-18-0x0000000000400000-0x0000000000459000-memory.dmp