Malware Analysis Report

2024-10-24 21:03

Sample ID 240829-npsbasyhla
Target c8bd995346f61308e200199c7e041b3c_JaffaCakes118
SHA256 9635c10648c4dccb9c9de1260429441a6936fcbd0f7eb16c4c149adc5888a32f
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

9635c10648c4dccb9c9de1260429441a6936fcbd0f7eb16c4c149adc5888a32f

Threat Level: Known bad

The file c8bd995346f61308e200199c7e041b3c_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 use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious behavior: RenamesItself

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 11:34

Signatures

CryptOne packer

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-29 11:34

Reported

2024-08-29 11:37

Platform

win7-20240729-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_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\smallhotspot.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\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\smallhotspot.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\smallhotspot.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.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\smallhotspot.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\smallhotspot.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0024000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\smallhotspot.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\smallhotspot.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\smallhotspot.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-dc-e0-a5-73-4f C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-dc-e0-a5-73-4f\WpadDecisionTime = b019ff8507fada01 C:\Windows\SysWOW64\smallhotspot.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95C0AB2A-80FC-44A5-B6CE-6BEE348EA0EE}\WpadDecisionReason = "1" C:\Windows\SysWOW64\smallhotspot.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95C0AB2A-80FC-44A5-B6CE-6BEE348EA0EE}\ee-dc-e0-a5-73-4f C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\smallhotspot.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95C0AB2A-80FC-44A5-B6CE-6BEE348EA0EE} C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95C0AB2A-80FC-44A5-B6CE-6BEE348EA0EE}\WpadDecisionTime = b019ff8507fada01 C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95C0AB2A-80FC-44A5-B6CE-6BEE348EA0EE}\WpadDecision = "0" C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95C0AB2A-80FC-44A5-B6CE-6BEE348EA0EE}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-dc-e0-a5-73-4f\WpadDecisionReason = "1" C:\Windows\SysWOW64\smallhotspot.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-dc-e0-a5-73-4f\WpadDecision = "0" C:\Windows\SysWOW64\smallhotspot.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe

--1a5a73cf

C:\Windows\SysWOW64\smallhotspot.exe

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

C:\Windows\SysWOW64\smallhotspot.exe

--3db04bda

Network

Country Destination Domain Proto
AR 152.168.82.167:80 tcp
AR 152.168.82.167:80 tcp
ZA 197.91.152.93:80 tcp
ZA 197.91.152.93:80 tcp
RU 77.82.85.35:8080 tcp
RU 77.82.85.35:8080 tcp

Files

memory/2876-0-0x0000000000220000-0x0000000000231000-memory.dmp

memory/2876-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2876-3-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2876-2-0x0000000000220000-0x0000000000231000-memory.dmp

memory/1820-4-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1820-5-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2280-6-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1820-7-0x0000000000400000-0x000000000041E000-memory.dmp

memory/1820-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2088-9-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2088-10-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 11:34

Reported

2024-08-29 11:37

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_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\History\History.IE5 C:\Windows\SysWOW64\relatedwhole.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\relatedwhole.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\relatedwhole.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\relatedwhole.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:\Windows\SysWOW64\relatedwhole.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\relatedwhole.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\relatedwhole.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\relatedwhole.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\relatedwhole.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\c8bd995346f61308e200199c7e041b3c_JaffaCakes118.exe

--1a5a73cf

C:\Windows\SysWOW64\relatedwhole.exe

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

C:\Windows\SysWOW64\relatedwhole.exe

--45cf80fe

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
AR 152.168.82.167:80 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
ZA 197.91.152.93:80 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
RU 77.82.85.35:8080 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 66.228.45.129:8080 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 65.49.60.163:443 tcp
US 45.33.35.103:8080 tcp
DE 5.9.128.163:8080 tcp

Files

memory/4228-0-0x0000000002160000-0x0000000002171000-memory.dmp

memory/4228-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4228-3-0x0000000002160000-0x0000000002171000-memory.dmp

memory/4912-4-0x0000000000400000-0x000000000041E000-memory.dmp

memory/4912-5-0x0000000000400000-0x000000000041E000-memory.dmp

memory/3916-6-0x0000000000400000-0x000000000041E000-memory.dmp

memory/3916-7-0x0000000000400000-0x000000000041E000-memory.dmp

memory/4912-10-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3848-11-0x0000000000400000-0x000000000041E000-memory.dmp

memory/3848-12-0x0000000000400000-0x000000000041E000-memory.dmp

memory/3848-14-0x0000000000400000-0x000000000041E000-memory.dmp

memory/3848-15-0x0000000000400000-0x000000000041E000-memory.dmp