Analysis Overview
SHA256
d6637c6c05a5268fccd2602cd7d384f57448b570f38aab1f752dab4c1af00c59
Threat Level: Known bad
The file 54fb130e36f9335f843e242559cb2b0c_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
ISR Stealer payload
ISR Stealer
Nirsoft
NirSoft MailPassView
Drops startup file
Reads user/profile data of web browsers
UPX packed file
Adds Run key to start application
Accesses Microsoft Outlook accounts
Writes to the Master Boot Record (MBR)
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-18 13:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-18 13:38
Reported
2024-05-18 13:41
Platform
win7-20240508-en
Max time kernel
117s
Max time network
121s
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 |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | 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-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Roaming\\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe" | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1684 set thread context of 2652 | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe |
| PID 2652 set thread context of 2904 | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe |
| PID 2652 set thread context of 2196 | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\DzpGizSguN.ini"
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\xMaYsdsR6Z.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | nmbs.net.au | udp |
| SG | 85.187.128.57:80 | nmbs.net.au | tcp |
Files
memory/1684-0-0x0000000000400000-0x00000000006CA000-memory.dmp
memory/1684-1-0x0000000000370000-0x00000000003B2000-memory.dmp
memory/1684-8-0x0000000000240000-0x0000000000241000-memory.dmp
memory/1684-7-0x0000000000290000-0x0000000000291000-memory.dmp
memory/1684-6-0x00000000002A0000-0x00000000002A1000-memory.dmp
memory/1684-5-0x00000000002B0000-0x00000000002B1000-memory.dmp
memory/1684-4-0x0000000000220000-0x0000000000221000-memory.dmp
memory/1684-3-0x0000000000230000-0x0000000000231000-memory.dmp
memory/1684-2-0x00000000002E0000-0x00000000002E1000-memory.dmp
memory/1684-14-0x00000000003E0000-0x00000000003E1000-memory.dmp
memory/1684-13-0x00000000006F0000-0x00000000006F1000-memory.dmp
memory/1684-12-0x00000000006D0000-0x00000000006D1000-memory.dmp
memory/1684-11-0x00000000006E0000-0x00000000006E2000-memory.dmp
memory/1684-10-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1684-15-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/1684-9-0x0000000000280000-0x0000000000281000-memory.dmp
memory/1684-19-0x0000000000730000-0x0000000000731000-memory.dmp
memory/1684-18-0x0000000000700000-0x0000000000701000-memory.dmp
memory/1684-17-0x0000000000710000-0x0000000000711000-memory.dmp
memory/1684-16-0x0000000000720000-0x0000000000721000-memory.dmp
memory/2652-24-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2652-22-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2652-20-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2652-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1684-38-0x0000000000370000-0x00000000003B2000-memory.dmp
memory/1684-37-0x0000000000400000-0x00000000006CA000-memory.dmp
memory/2652-28-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1684-36-0x0000000003E60000-0x000000000412A000-memory.dmp
memory/2904-44-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2904-47-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2904-46-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2904-45-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2652-42-0x0000000002900000-0x0000000002BCA000-memory.dmp
memory/2904-41-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2904-49-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\DzpGizSguN.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/2196-52-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2196-55-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2196-54-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2196-59-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2652-58-0x0000000003980000-0x0000000003C4A000-memory.dmp
memory/2652-60-0x0000000000400000-0x0000000000442000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-18 13:38
Reported
2024-05-18 13:41
Platform
win10v2004-20240226-en
Max time kernel
142s
Max time network
151s
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 |
| 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 |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | 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-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Roaming\\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe" | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4380 set thread context of 4564 | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe |
| PID 4564 set thread context of 2252 | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe |
| PID 4564 set thread context of 1556 | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\MkvpZuL6Qa.ini"
C:\Users\Admin\AppData\Local\Temp\54fb130e36f9335f843e242559cb2b0c_JaffaCakes118.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\ZWydlTlZLr.ini"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1408 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | nmbs.net.au | udp |
| SG | 85.187.128.57:80 | nmbs.net.au | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.128.187.85.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.179.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | pki.goog | udp |
| US | 8.8.8.8:53 | pki.goog | udp |
| US | 8.8.8.8:53 | 234.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pki.goog | udp |
| US | 216.239.32.29:80 | pki.goog | tcp |
| US | 8.8.8.8:53 | 29.32.239.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.234.34.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
Files
memory/4380-0-0x0000000000400000-0x00000000006CA000-memory.dmp
memory/4380-1-0x00000000024A0000-0x00000000024E2000-memory.dmp
memory/4380-8-0x0000000000890000-0x0000000000891000-memory.dmp
memory/4380-7-0x00000000008D0000-0x00000000008D1000-memory.dmp
memory/4380-6-0x00000000008E0000-0x00000000008E1000-memory.dmp
memory/4380-5-0x00000000008F0000-0x00000000008F1000-memory.dmp
memory/4380-4-0x0000000000870000-0x0000000000871000-memory.dmp
memory/4380-3-0x0000000000880000-0x0000000000881000-memory.dmp
memory/4380-2-0x0000000002510000-0x0000000002511000-memory.dmp
memory/4380-11-0x0000000002570000-0x0000000002572000-memory.dmp
memory/4380-10-0x0000000002530000-0x0000000002531000-memory.dmp
memory/4380-9-0x00000000008C0000-0x00000000008C1000-memory.dmp
memory/4380-12-0x0000000002560000-0x0000000002561000-memory.dmp
memory/4380-18-0x0000000002590000-0x0000000002591000-memory.dmp
memory/4380-17-0x00000000025A0000-0x00000000025A1000-memory.dmp
memory/4380-16-0x00000000026C0000-0x00000000026C1000-memory.dmp
memory/4380-15-0x0000000002550000-0x0000000002551000-memory.dmp
memory/4380-14-0x0000000002540000-0x0000000002541000-memory.dmp
memory/4380-13-0x0000000002580000-0x0000000002581000-memory.dmp
memory/4380-19-0x0000000002830000-0x0000000002831000-memory.dmp
memory/4564-20-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4564-22-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4564-24-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2252-29-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2252-31-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2252-32-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2252-33-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4380-34-0x0000000000400000-0x00000000006CA000-memory.dmp
memory/4380-35-0x00000000024A0000-0x00000000024E2000-memory.dmp
memory/2252-37-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\MkvpZuL6Qa.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/4564-40-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1556-41-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1556-43-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1556-45-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1556-44-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1556-46-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4564-48-0x0000000000400000-0x0000000000442000-memory.dmp