Malware Analysis Report

2024-10-24 21:03

Sample ID 240913-yedp9svhmc
Target dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118
SHA256 c4863ea662603e636257803d93dc20518375363c8aea0298f3f174f7c1738944
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

c4863ea662603e636257803d93dc20518375363c8aea0298f3f174f7c1738944

Threat Level: Known bad

The file dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

cryptone packer emotet banker discovery trojan

Emotet

CryptOne packer

Drops file in System32 directory

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Modifies data under HKEY_USERS

Suspicious behavior: RenamesItself

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-13 19:41

Signatures

CryptOne packer

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 19:41

Reported

2024-09-13 19:44

Platform

win7-20240903-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_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\sitkacycle.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\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sitkacycle.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sitkacycle.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C60C58E0-DDD4-42BB-840A-48A3CB03ABD1}\b6-64-d8-9e-16-d3 C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-64-d8-9e-16-d3\WpadDecisionReason = "1" C:\Windows\SysWOW64\sitkacycle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\sitkacycle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\sitkacycle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\sitkacycle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C60C58E0-DDD4-42BB-840A-48A3CB03ABD1} C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C60C58E0-DDD4-42BB-840A-48A3CB03ABD1}\WpadDecision = "0" C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-64-d8-9e-16-d3\WpadDecisionTime = 70eea6071506db01 C:\Windows\SysWOW64\sitkacycle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C60C58E0-DDD4-42BB-840A-48A3CB03ABD1}\WpadDecisionReason = "1" C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C60C58E0-DDD4-42BB-840A-48A3CB03ABD1}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\sitkacycle.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-64-d8-9e-16-d3 C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-64-d8-9e-16-d3\WpadDecision = "0" C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\sitkacycle.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C60C58E0-DDD4-42BB-840A-48A3CB03ABD1}\WpadDecisionTime = 70eea6071506db01 C:\Windows\SysWOW64\sitkacycle.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe

--d488243e

C:\Windows\SysWOW64\sitkacycle.exe

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

C:\Windows\SysWOW64\sitkacycle.exe

--cb51aea4

Network

Country Destination Domain Proto
GB 109.158.205.99:50000 tcp
GB 109.158.205.99:50000 tcp
GB 188.221.112.91:80 tcp
GB 188.221.112.91:80 tcp
PL 88.156.97.210:80 tcp

Files

memory/2696-0-0x0000000000220000-0x0000000000231000-memory.dmp

memory/2696-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2696-4-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2696-3-0x0000000000220000-0x0000000000231000-memory.dmp

memory/3028-5-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3028-6-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2420-7-0x0000000000400000-0x0000000000425000-memory.dmp

memory/2420-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3028-11-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2520-12-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2520-13-0x0000000000400000-0x0000000000425000-memory.dmp

memory/2520-14-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 19:41

Reported

2024-09-13 19:44

Platform

win10v2004-20240802-en

Max time kernel

146s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_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\cloudsel.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\cloudsel.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\cloudsel.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\cloudsel.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\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cloudsel.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cloudsel.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\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\cloudsel.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\cloudsel.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\cloudsel.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\dec76f7277a6e33411bbfd7c1fdb045b_JaffaCakes118.exe

--d488243e

C:\Windows\SysWOW64\cloudsel.exe

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

C:\Windows\SysWOW64\cloudsel.exe

--6ee258f7

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 43.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
GB 109.158.205.99:50000 tcp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
GB 188.221.112.91:80 tcp
PL 88.156.97.210:80 tcp
US 8.8.8.8:53 34.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 45.79.72.132:443 tcp
DE 136.243.117.85:8080 tcp

Files

memory/3188-0-0x0000000002040000-0x0000000002051000-memory.dmp

memory/3188-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3188-4-0x0000000002040000-0x0000000002051000-memory.dmp

memory/3564-5-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3564-6-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3564-8-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3564-9-0x0000000000400000-0x0000000000425000-memory.dmp

memory/4132-10-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3564-15-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3224-16-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3224-17-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3224-19-0x0000000000400000-0x0000000000425000-memory.dmp