Malware Analysis Report

2024-10-24 21:03

Sample ID 240829-1hykysvblm
Target c9afb54377f7916c283437a2c454b1f7_JaffaCakes118
SHA256 0ec4517f2ce8dc1685cd8ea3a2d6c17ed2b4fd90ee7461b03c0313b61f40c169
Tags
emotet epoch3 banker discovery trojan cryptone packer
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

0ec4517f2ce8dc1685cd8ea3a2d6c17ed2b4fd90ee7461b03c0313b61f40c169

Threat Level: Known bad

The file c9afb54377f7916c283437a2c454b1f7_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 banker discovery trojan cryptone packer

Emotet

CryptOne packer

Drops file in System32 directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 21:39

Signatures

CryptOne packer

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-29 21:39

Reported

2024-08-29 21:42

Platform

win7-20240704-en

Max time kernel

141s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_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\durableshell.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\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\durableshell.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\durableshell.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AF469138-DD2B-4F64-A17C-42E32B166255}\fe-ce-c6-af-2b-aa C:\Windows\SysWOW64\durableshell.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-ce-c6-af-2b-aa\WpadDecisionReason = "1" C:\Windows\SysWOW64\durableshell.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\durableshell.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\durableshell.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\durableshell.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AF469138-DD2B-4F64-A17C-42E32B166255} C:\Windows\SysWOW64\durableshell.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AF469138-DD2B-4F64-A17C-42E32B166255}\WpadDecisionTime = 002039055cfada01 C:\Windows\SysWOW64\durableshell.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-ce-c6-af-2b-aa C:\Windows\SysWOW64\durableshell.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\durableshell.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\durableshell.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\durableshell.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-ce-c6-af-2b-aa\WpadDecision = "0" C:\Windows\SysWOW64\durableshell.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\durableshell.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\durableshell.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\durableshell.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AF469138-DD2B-4F64-A17C-42E32B166255}\WpadDecisionReason = "1" C:\Windows\SysWOW64\durableshell.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AF469138-DD2B-4F64-A17C-42E32B166255}\WpadDecision = "0" C:\Windows\SysWOW64\durableshell.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AF469138-DD2B-4F64-A17C-42E32B166255}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\durableshell.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-ce-c6-af-2b-aa\WpadDecisionTime = 002039055cfada01 C:\Windows\SysWOW64\durableshell.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\durableshell.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\durableshell.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe

--61aad23b

C:\Windows\SysWOW64\durableshell.exe

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

C:\Windows\SysWOW64\durableshell.exe

--7432767

Network

Country Destination Domain Proto
PK 110.36.234.146:80 tcp
PK 110.36.234.146:80 tcp
ZW 197.211.244.6:443 tcp
ZW 197.211.244.6:443 tcp
IN 125.99.61.162:7080 tcp
IN 125.99.61.162:7080 tcp

Files

memory/2244-0-0x0000000002660000-0x0000000002675000-memory.dmp

memory/2244-1-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2244-3-0x0000000002660000-0x0000000002675000-memory.dmp

memory/2244-2-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2480-4-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2480-5-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2264-6-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2264-7-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2480-9-0x0000000000400000-0x0000000000416000-memory.dmp

memory/1448-10-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1448-11-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1448-12-0x0000000000400000-0x0000000000416000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 21:39

Reported

2024-08-29 21:42

Platform

win10v2004-20240802-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_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\IE C:\Windows\SysWOW64\hashcursor.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\hashcursor.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\hashcursor.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\hashcursor.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\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\hashcursor.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\hashcursor.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\hashcursor.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\hashcursor.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\hashcursor.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe"

C:\Windows\system32\AUDIODG.EXE

C:\Windows\system32\AUDIODG.EXE 0x4a0 0x338

C:\Users\Admin\AppData\Local\Temp\c9afb54377f7916c283437a2c454b1f7_JaffaCakes118.exe

--61aad23b

C:\Windows\SysWOW64\hashcursor.exe

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

C:\Windows\SysWOW64\hashcursor.exe

--17df2ad6

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 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
PK 110.36.234.146:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 37.56.20.217.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
ZW 197.211.244.6:443 tcp
IN 125.99.61.162:7080 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
KR 115.88.70.226:7080 tcp
US 162.241.232.82:8080 tcp
NL 194.50.163.106:8080 tcp

Files

memory/3356-0-0x00000000028A0000-0x00000000028B5000-memory.dmp

memory/3356-1-0x0000000000400000-0x0000000000416000-memory.dmp

memory/3356-4-0x00000000028A0000-0x00000000028B5000-memory.dmp

memory/3356-5-0x0000000000400000-0x0000000000416000-memory.dmp

memory/5052-6-0x0000000000400000-0x0000000000478000-memory.dmp

memory/5052-7-0x0000000000400000-0x0000000000478000-memory.dmp

memory/748-8-0x0000000000400000-0x0000000000478000-memory.dmp

memory/748-11-0x0000000000400000-0x0000000000478000-memory.dmp

memory/5052-14-0x0000000000400000-0x0000000000416000-memory.dmp

memory/2440-15-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2440-16-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2440-17-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2440-19-0x0000000000400000-0x0000000000478000-memory.dmp