Analysis Overview
SHA256
b8cef7577e09d894f2136407634962aa9574f00c3c09651cafeffbed4e9b220a
Threat Level: Known bad
The file triage_dropped_file was found to be: Known bad.
Malicious Activity Summary
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Xloader Payload
Executes dropped EXE
Reads user/profile data of web browsers
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in Program Files directory
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies Internet Explorer settings
Gathers network information
Suspicious use of SendNotifyMessage
Suspicious use of FindShellTrayWindow
Suspicious behavior: MapViewOfSection
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-06-21 10:17
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-06-21 10:17
Reported
2022-06-21 10:19
Platform
win7-20220414-en
Max time kernel
145s
Max time network
151s
Command Line
Signatures
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Xloader 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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1172 set thread context of 1884 | N/A | C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
| PID 1884 set thread context of 1396 | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | C:\Windows\Explorer.EXE |
| PID 1524 set thread context of 1396 | N/A | C:\Windows\SysWOW64\NETSTAT.EXE | C:\Windows\Explorer.EXE |
Gathers network information
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\NETSTAT.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\NETSTAT.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\NETSTAT.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\NETSTAT.EXE | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.nusires.com | udp |
| US | 68.65.121.68:80 | www.nusires.com | tcp |
| US | 8.8.8.8:53 | www.raytan5.com | udp |
| US | 8.8.8.8:53 | www.efeturozemniyet.com | udp |
| US | 8.8.8.8:53 | www.zamanscorner.com | udp |
| CA | 23.227.38.74:80 | www.zamanscorner.com | tcp |
| US | 8.8.8.8:53 | www.solfuls.com | udp |
| US | 35.155.7.183:80 | www.solfuls.com | tcp |
| US | 8.8.8.8:53 | www.vistadocs.com | udp |
| US | 8.8.8.8:53 | www.tradefitinvesting.com | udp |
| US | 8.8.8.8:53 | www.mariafonsecafreitas.com | udp |
| US | 192.0.78.24:80 | www.mariafonsecafreitas.com | tcp |
| US | 8.8.8.8:53 | www.verdure720.com | udp |
| DE | 91.195.240.103:80 | www.verdure720.com | tcp |
| US | 8.8.8.8:53 | www.sophrologuemontevrain77.com | udp |
| US | 192.0.78.24:80 | www.sophrologuemontevrain77.com | tcp |
| US | 8.8.8.8:53 | www.whoyoucall.net | udp |
| US | 8.8.8.8:53 | www.skinbid.pro | udp |
| US | 8.8.8.8:53 | www.ardtalscase.com | udp |
| ID | 103.147.154.38:80 | www.ardtalscase.com | tcp |
| US | 68.65.121.68:80 | www.nusires.com | tcp |
Files
memory/1172-54-0x0000000000EF0000-0x0000000000F52000-memory.dmp
memory/1172-55-0x0000000000280000-0x00000000002B4000-memory.dmp
memory/1884-56-0x0000000000400000-0x000000000042B000-memory.dmp
memory/1884-57-0x0000000000400000-0x000000000042B000-memory.dmp
memory/1884-59-0x0000000000400000-0x000000000042B000-memory.dmp
memory/1884-60-0x000000000041F2C0-mapping.dmp
memory/1884-62-0x00000000009C0000-0x0000000000CC3000-memory.dmp
memory/1884-63-0x00000000003D0000-0x00000000003E1000-memory.dmp
memory/1396-64-0x0000000007110000-0x0000000007264000-memory.dmp
memory/1884-66-0x0000000000400000-0x000000000042B000-memory.dmp
memory/1524-65-0x0000000000000000-mapping.dmp
memory/1492-67-0x0000000000000000-mapping.dmp
memory/1524-68-0x00000000002D0000-0x00000000002D9000-memory.dmp
memory/1524-69-0x0000000000080000-0x00000000000AB000-memory.dmp
memory/1524-70-0x0000000001FD0000-0x00000000022D3000-memory.dmp
memory/1524-71-0x0000000000590000-0x0000000000620000-memory.dmp
memory/1396-72-0x0000000004330000-0x0000000004407000-memory.dmp
memory/1524-73-0x0000000000080000-0x00000000000AB000-memory.dmp
memory/1396-74-0x0000000004330000-0x0000000004407000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-06-21 10:17
Reported
2022-06-21 10:19
Platform
win10v2004-20220414-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Xloader 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\M8pj\mpxhaldf.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\cmstp.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TXL09N6XCZ = "C:\\Program Files (x86)\\M8pj\\mpxhaldf.exe" | C:\Windows\SysWOW64\cmstp.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3296 set thread context of 3064 | N/A | C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe |
| PID 3064 set thread context of 3020 | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | C:\Windows\Explorer.EXE |
| PID 4356 set thread context of 3020 | N/A | C:\Windows\SysWOW64\cmstp.exe | C:\Windows\Explorer.EXE |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\M8pj\mpxhaldf.exe | C:\Windows\SysWOW64\cmstp.exe | N/A |
| File opened for modification | C:\Program Files (x86)\M8pj | C:\Windows\Explorer.EXE | N/A |
| File created | C:\Program Files (x86)\M8pj\mpxhaldf.exe | C:\Windows\Explorer.EXE | N/A |
| File opened for modification | C:\Program Files (x86)\M8pj\mpxhaldf.exe | C:\Windows\Explorer.EXE | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 | C:\Windows\SysWOW64\cmstp.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
C:\Program Files (x86)\M8pj\mpxhaldf.exe
"C:\Program Files (x86)\M8pj\mpxhaldf.exe"
Network
| Country | Destination | Domain | Proto |
| GB | 51.132.193.105:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | www.ciclean.com | udp |
| US | 38.53.102.98:80 | www.ciclean.com | tcp |
| US | 8.8.8.8:53 | www.ardtalscase.com | udp |
| ID | 103.147.154.38:80 | www.ardtalscase.com | tcp |
| US | 8.253.208.112:80 | tcp | |
| US | 8.253.208.112:80 | tcp | |
| US | 8.253.208.112:80 | tcp | |
| US | 8.8.8.8:53 | www.kosodate-tiger.com | udp |
| JP | 162.43.118.151:80 | www.kosodate-tiger.com | tcp |
| US | 8.8.8.8:53 | www.renovacg.com | udp |
| US | 34.102.136.180:80 | www.renovacg.com | tcp |
| FR | 2.18.109.224:443 | tcp | |
| US | 104.18.24.243:80 | tcp | |
| US | 8.8.8.8:53 | www.pertlines.com | udp |
| US | 8.8.8.8:53 | www.yanpoake.com | udp |
| US | 8.8.8.8:53 | www.mariafonsecafreitas.com | udp |
| US | 192.0.78.24:80 | www.mariafonsecafreitas.com | tcp |
| US | 8.8.8.8:53 | www.efeturozemniyet.com | udp |
| US | 8.8.8.8:53 | www.l8e9gr.xyz | udp |
| US | 54.166.223.180:80 | www.l8e9gr.xyz | tcp |
| US | 8.8.8.8:53 | www.000006138.com | udp |
| US | 8.8.8.8:53 | www.nusires.com | udp |
| US | 68.65.121.68:80 | www.nusires.com | tcp |
| US | 8.8.8.8:53 | www.leafybooster.com | udp |
| US | 38.40.207.232:80 | www.leafybooster.com | tcp |
| US | 38.40.207.232:80 | www.leafybooster.com | tcp |
| US | 38.40.207.232:80 | www.leafybooster.com | tcp |
| US | 8.8.8.8:53 | www.designerinfotech.com | udp |
| US | 8.8.8.8:53 | www.sisterfuckers.info | udp |
| US | 192.0.78.169:80 | www.sisterfuckers.info | tcp |
| US | 192.0.78.169:80 | www.sisterfuckers.info | tcp |
| US | 192.0.78.169:80 | www.sisterfuckers.info | tcp |
| US | 8.8.8.8:53 | www.sodapins.com | udp |
| US | 156.252.208.11:80 | www.sodapins.com | tcp |
| US | 156.252.208.11:80 | www.sodapins.com | tcp |
| US | 156.252.208.11:80 | www.sodapins.com | tcp |
| US | 8.8.8.8:53 | www.agcompanion.com | udp |
| US | 134.73.84.219:80 | www.agcompanion.com | tcp |
Files
memory/3296-130-0x0000000000C10000-0x0000000000C72000-memory.dmp
memory/3064-131-0x0000000000000000-mapping.dmp
memory/3064-132-0x0000000000400000-0x000000000042B000-memory.dmp
memory/3064-134-0x0000000000400000-0x000000000042B000-memory.dmp
memory/3064-135-0x0000000001460000-0x00000000017AA000-memory.dmp
memory/3020-137-0x0000000008110000-0x0000000008285000-memory.dmp
memory/3064-136-0x00000000017B0000-0x00000000017C1000-memory.dmp
memory/4356-138-0x0000000000000000-mapping.dmp
memory/4356-139-0x0000000000CB0000-0x0000000000CC6000-memory.dmp
memory/4356-140-0x0000000001020000-0x000000000104B000-memory.dmp
memory/2040-141-0x0000000000000000-mapping.dmp
memory/4356-142-0x0000000002F30000-0x000000000327A000-memory.dmp
memory/4356-143-0x0000000002D90000-0x0000000002E20000-memory.dmp
memory/4356-144-0x0000000001020000-0x000000000104B000-memory.dmp
memory/3020-145-0x0000000008690000-0x00000000087A8000-memory.dmp
memory/3020-146-0x0000000008690000-0x00000000087A8000-memory.dmp
memory/1044-147-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\DB1
| MD5 | b608d407fc15adea97c26936bc6f03f6 |
| SHA1 | 953e7420801c76393902c0d6bb56148947e41571 |
| SHA256 | b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf |
| SHA512 | cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4 |
memory/3048-149-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\DB1
| MD5 | 349e6eb110e34a08924d92f6b334801d |
| SHA1 | bdfb289daff51890cc71697b6322aa4b35ec9169 |
| SHA256 | c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a |
| SHA512 | 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574 |
memory/440-151-0x0000000000000000-mapping.dmp
C:\Program Files (x86)\M8pj\mpxhaldf.exe
| MD5 | 70d838a7dc5b359c3f938a71fad77db0 |
| SHA1 | 66b83eb16481c334719eed406bc58a3c2b910923 |
| SHA256 | e4dbdbf7888ea96f3f8aa5c4c7f2bcf6e57d724dd8194fe5f35b673c6ef724ea |
| SHA512 | 9c9a945db5b5e7ff8105bfe74578e6f00b5f707f7c3d8f1f1fb41553a6d0eab29cef026e77877a1ad6435fa7bc369141921442e1485f2b0894c6bbcbd7791034 |
C:\Program Files (x86)\M8pj\mpxhaldf.exe
| MD5 | 70d838a7dc5b359c3f938a71fad77db0 |
| SHA1 | 66b83eb16481c334719eed406bc58a3c2b910923 |
| SHA256 | e4dbdbf7888ea96f3f8aa5c4c7f2bcf6e57d724dd8194fe5f35b673c6ef724ea |
| SHA512 | 9c9a945db5b5e7ff8105bfe74578e6f00b5f707f7c3d8f1f1fb41553a6d0eab29cef026e77877a1ad6435fa7bc369141921442e1485f2b0894c6bbcbd7791034 |