Analysis Overview
SHA256
e8cd0ef98abb8b7f8c3a7c05c7e1748963d0e4c23ef29d0dc350ed1373833a7c
Threat Level: Known bad
The file f76d8260aeef01c0040deb7e4987aced_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
ISR Stealer
ISR Stealer payload
NirSoft MailPassView
Nirsoft
UPX packed file
Reads user/profile data of web browsers
Adds Run key to start application
Accesses Microsoft Outlook accounts
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-18 06:13
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-18 06:13
Reported
2024-04-18 06:15
Platform
win7-20240221-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
ISR Stealer
ISR Stealer payload
| 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 |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| 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 |
Nirsoft
| 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 |
Reads user/profile data of web browsers
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\E51E6jru57s8Iq4s = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe" | C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2848 set thread context of 2880 | N/A | C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
| PID 2880 set thread context of 2612 | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
| PID 2880 set thread context of 2408 | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\u6ujFa6OiB.ini"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\BUjPNvZfTH.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.arbget.com | udp |
| US | 15.197.240.20:80 | www.arbget.com | tcp |
Files
memory/2880-0-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-2-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-4-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2880-8-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-13-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2612-16-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-14-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-20-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-19-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-18-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-22-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\u6ujFa6OiB.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/2408-24-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2408-26-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2408-28-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2408-29-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2408-30-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2408-31-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2880-32-0x0000000000400000-0x0000000000442000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-18 06:13
Reported
2024-04-18 06:15
Platform
win10v2004-20240412-en
Max time kernel
94s
Max time network
114s
Command Line
Signatures
ISR Stealer
ISR Stealer payload
| 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 |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Nirsoft
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Reads user/profile data of web browsers
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\I7ak1YeiVt_4Udke = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe" | C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2168 set thread context of 1416 | N/A | C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
| PID 1416 set thread context of 876 | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
| PID 1416 set thread context of 2284 | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f76d8260aeef01c0040deb7e4987aced_JaffaCakes118.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\47ICxFp7rk.ini"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\u9DY80IbPK.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 156.33.209.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 132.250.30.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.arbget.com | udp |
| US | 15.197.240.20:80 | www.arbget.com | tcp |
| US | 8.8.8.8:53 | 20.240.197.15.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
memory/1416-0-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1416-2-0x0000000000400000-0x0000000000442000-memory.dmp
memory/876-5-0x0000000000400000-0x0000000000453000-memory.dmp
memory/876-7-0x0000000000400000-0x0000000000453000-memory.dmp
memory/876-9-0x0000000000400000-0x0000000000453000-memory.dmp
memory/876-11-0x0000000000400000-0x0000000000453000-memory.dmp
memory/876-10-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\47ICxFp7rk.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/2284-14-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2284-16-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2284-18-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2284-20-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2284-19-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1416-21-0x0000000000400000-0x0000000000442000-memory.dmp