Malware Analysis Report

2024-10-18 23:16

Sample ID 240710-g8ytvstfph
Target 33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118
SHA256 9fb198089a3815b1b5ead8e5c11c087a92aa37769e3ab9fc3d09646557743d14
Tags
snakekeylogger collection keylogger spyware stealer
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9fb198089a3815b1b5ead8e5c11c087a92aa37769e3ab9fc3d09646557743d14

Threat Level: Known bad

The file 33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

snakekeylogger collection keylogger spyware stealer

Snake Keylogger

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Loads dropped DLL

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Enumerates physical storage devices

NSIS installer

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-10 06:29

Signatures

Unsigned PE

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

NSIS installer

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-10 06:29

Reported

2024-07-10 06:31

Platform

win10v2004-20240709-en

Max time kernel

93s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe"

Signatures

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2104 -ip 2104

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 1000

Network

Country Destination Domain Proto
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nse91C1.tmp\System.dll

MD5 fccff8cb7a1067e23fd2e2b63971a8e1
SHA1 30e2a9e137c1223a78a0f7b0bf96a1c361976d91
SHA256 6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
SHA512 f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

C:\Users\Admin\AppData\Local\Temp\8d144.dll

MD5 fcaca1b9ad5fe0bfed523839d37ecf27
SHA1 66fdce05606bc861b42fec41b0505668ac21defe
SHA256 3f36bb6084f358696601a687bee93c006bdbb4155a16603ad350d83093a94417
SHA512 41b2144eef175e61a9dc417dd8556f653268584ef82c44132b2d505f00dad488dffce370beffeabf322ecf8cfa3cdad6f80b7f3fab8e0a29941aafe77e9c564c

memory/2104-9-0x0000000010000000-0x0000000010005000-memory.dmp

memory/2104-10-0x0000000010000000-0x0000000010005000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-07-10 06:29

Reported

2024-07-10 06:32

Platform

win7-20240708-en

Max time kernel

118s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 220

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-07-10 06:29

Reported

2024-07-10 06:32

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4740 wrote to memory of 1164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4740 wrote to memory of 1164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4740 wrote to memory of 1164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1164 -ip 1164

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1164 -s 612

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 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral5

Detonation Overview

Submitted

2024-07-10 06:29

Reported

2024-07-10 06:31

Platform

win7-20240704-en

Max time kernel

14s

Max time network

19s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d144.dll,#1

Signatures

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2468 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 2152 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d144.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d144.dll,#1

Network

N/A

Files

memory/2152-0-0x0000000010000000-0x0000000010005000-memory.dmp

Analysis: behavioral6

Detonation Overview

Submitted

2024-07-10 06:29

Reported

2024-07-10 06:32

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d144.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2296 wrote to memory of 2356 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2296 wrote to memory of 2356 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2296 wrote to memory of 2356 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d144.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d144.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 2356 -ip 2356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 672

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2356-0-0x0000000010000000-0x0000000010005000-memory.dmp

memory/2356-1-0x0000000010000000-0x0000000010005000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-10 06:29

Reported

2024-07-10 06:33

Platform

win7-20240705-en

Max time kernel

141s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe"

Signatures

Snake Keylogger

stealer keylogger snakekeylogger

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A freegeoip.app N/A N/A
N/A checkip.dyndns.org N/A N/A
N/A freegeoip.app N/A N/A

Enumerates physical storage devices

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2528 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe
PID 2528 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe
PID 2528 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe
PID 2528 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe
PID 2528 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe
PID 2840 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2840 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2840 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2840 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\33a761dbe5930c762f7f88f7d733a7fe_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 912

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
BR 132.226.247.73:80 checkip.dyndns.org tcp
US 8.8.8.8:53 freegeoip.app udp
US 172.67.160.84:443 freegeoip.app tcp
US 8.8.8.8:53 ipbase.com udp
US 172.67.209.71:443 ipbase.com tcp

Files

\Users\Admin\AppData\Local\Temp\8d144.dll

MD5 fcaca1b9ad5fe0bfed523839d37ecf27
SHA1 66fdce05606bc861b42fec41b0505668ac21defe
SHA256 3f36bb6084f358696601a687bee93c006bdbb4155a16603ad350d83093a94417
SHA512 41b2144eef175e61a9dc417dd8556f653268584ef82c44132b2d505f00dad488dffce370beffeabf322ecf8cfa3cdad6f80b7f3fab8e0a29941aafe77e9c564c

\Users\Admin\AppData\Local\Temp\nsoF0F.tmp\System.dll

MD5 fccff8cb7a1067e23fd2e2b63971a8e1
SHA1 30e2a9e137c1223a78a0f7b0bf96a1c361976d91
SHA256 6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
SHA512 f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

memory/2528-11-0x0000000010000000-0x0000000010005000-memory.dmp

memory/2840-12-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2528-15-0x0000000010000000-0x0000000010005000-memory.dmp

memory/2840-14-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2840-16-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2840-17-0x0000000001F70000-0x0000000001FDA000-memory.dmp