Analysis Overview
SHA256
5edfe16bcbb30e9cc55e17fccf34e2224d09695e7aa06fa243e1ab5429d6756a
Threat Level: Known bad
The file ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet family
Darkcomet
Sets file to hidden
Deletes itself
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Views/modifies file attributes
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-15 12:32
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-15 12:32
Reported
2024-06-15 12:35
Platform
win7-20240611-en
Max time kernel
150s
Max time network
146s
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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.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\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:1604 | tcp | |
| RU | 109.165.20.62:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| RU | 109.165.20.62:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| RU | 109.165.20.62:1604 | tcp | |
| RU | 109.165.20.62:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| RU | 109.165.20.62:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| RU | 109.165.20.62:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| RU | 109.165.20.62:1604 | tcp |
Files
memory/2016-0-0x0000000000260000-0x0000000000261000-memory.dmp
memory/1260-18-0x0000000000190000-0x0000000000191000-memory.dmp
memory/1260-3-0x0000000000080000-0x0000000000081000-memory.dmp
\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
| MD5 | ae7226c180696a8bc5f0f7dd2dae4fa1 |
| SHA1 | 648b75fbc11cb83f4879c685201a6b9a846743be |
| SHA256 | 5edfe16bcbb30e9cc55e17fccf34e2224d09695e7aa06fa243e1ab5429d6756a |
| SHA512 | 8bf3c9e5c680e51566d646d0a3ea0057d57817aa973a71e2f455a6881f196032606bf6c05af4e19007506693bd2338530112debed65dc92b821dd83c8eac2a28 |
memory/2572-66-0x0000000000270000-0x0000000000271000-memory.dmp
memory/2016-67-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2672-69-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2672-71-0x0000000000400000-0x00000000004D9000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-15 12:32
Reported
2024-06-15 12:35
Platform
win10v2004-20240611-en
Max time kernel
150s
Max time network
136s
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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_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\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\ae7226c180696a8bc5f0f7dd2dae4fa1_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| BE | 2.17.107.122:443 | www.bing.com | tcp |
| N/A | 127.0.0.1:1604 | tcp | |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 122.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.15.31.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.143.182.52.in-addr.arpa | udp |
Files
memory/3188-0-0x00000000006C0000-0x00000000006C1000-memory.dmp
memory/2688-3-0x0000000000D60000-0x0000000000D61000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
| MD5 | ae7226c180696a8bc5f0f7dd2dae4fa1 |
| SHA1 | 648b75fbc11cb83f4879c685201a6b9a846743be |
| SHA256 | 5edfe16bcbb30e9cc55e17fccf34e2224d09695e7aa06fa243e1ab5429d6756a |
| SHA512 | 8bf3c9e5c680e51566d646d0a3ea0057d57817aa973a71e2f455a6881f196032606bf6c05af4e19007506693bd2338530112debed65dc92b821dd83c8eac2a28 |
memory/3588-14-0x0000000000BC0000-0x0000000000BC1000-memory.dmp
memory/3188-15-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/4448-17-0x0000000000400000-0x00000000004D9000-memory.dmp