Analysis Overview
SHA256
2c0b605ae93299e091916c61e420098bdbf2decd077d5ef9ab03ab1f2dcf14aa
Threat Level: Known bad
The file 09108aeb9c221f30128ba072950c69fd_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet family
Darkcomet
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Deletes itself
UPX packed file
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-04-30 04:53
Signatures
Darkcomet family
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-30 04:53
Reported
2024-04-30 04:56
Platform
win10v2004-20240419-en
Max time kernel
148s
Max time network
148s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\notepad.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Users\Admin\Documents\MSDCSC\explorer.exe
"C:\Users\Admin\Documents\MSDCSC\explorer.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
Files
memory/2112-0-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2112-1-0x00000000006C0000-0x00000000006C1000-memory.dmp
memory/5068-5-0x0000000000D90000-0x0000000000D91000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\explorer.exe
| MD5 | 09108aeb9c221f30128ba072950c69fd |
| SHA1 | 9efd8cd35e0b4ebd945862be1b596b34c87652d6 |
| SHA256 | 2c0b605ae93299e091916c61e420098bdbf2decd077d5ef9ab03ab1f2dcf14aa |
| SHA512 | 08c51745d206fbff5aa02449c0b8e4a9da48d8bd7649d2b35b2fbacfee27f55cded7ab7b7722903066603cbf66a4a2f1324d19662d1253b74c1481f314ee39aa |
memory/60-63-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-65-0x0000000002710000-0x0000000002711000-memory.dmp
memory/2112-66-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-68-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-69-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-70-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-71-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-72-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-73-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-74-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-75-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-76-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-77-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-78-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-79-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-80-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/60-81-0x0000000000400000-0x00000000004B7000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-30 04:53
Reported
2024-04-30 04:56
Platform
win7-20240221-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\notepad.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" | C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\explorer.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Users\Admin\Documents\MSDCSC\explorer.exe
"C:\Users\Admin\Documents\MSDCSC\explorer.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | jully.ddns.net | udp |
Files
memory/2928-0-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2928-1-0x0000000000280000-0x0000000000281000-memory.dmp
memory/2640-21-0x0000000000170000-0x0000000000171000-memory.dmp
memory/2640-5-0x0000000000080000-0x0000000000081000-memory.dmp
\Users\Admin\Documents\MSDCSC\explorer.exe
| MD5 | 09108aeb9c221f30128ba072950c69fd |
| SHA1 | 9efd8cd35e0b4ebd945862be1b596b34c87652d6 |
| SHA256 | 2c0b605ae93299e091916c61e420098bdbf2decd077d5ef9ab03ab1f2dcf14aa |
| SHA512 | 08c51745d206fbff5aa02449c0b8e4a9da48d8bd7649d2b35b2fbacfee27f55cded7ab7b7722903066603cbf66a4a2f1324d19662d1253b74c1481f314ee39aa |
memory/2928-30-0x0000000004050000-0x0000000004107000-memory.dmp
memory/2928-29-0x0000000004050000-0x0000000004107000-memory.dmp
memory/2652-32-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2928-34-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-36-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-37-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-38-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-39-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-40-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-41-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-42-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-43-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-44-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-45-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-46-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-47-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-48-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2652-49-0x0000000000400000-0x00000000004B7000-memory.dmp