Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	Sept. 24, 2021, 4:43 p.m.	Sept. 24, 2021, 4:45 p.m.

Size	263.0KB
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 Sep 23 07:45:48 2021, Security: 0
MD5	`b18faf6bc59505ac36fb11d6ce6131d2`
SHA256	`48c49f5285d5c8ab80ca811084784b2209ff6e0bbb464c280209cfdda45d2999`
CRC32	`6F90E787`
ssdeep	`6144:NKpb8rGYrMPe3q7Q0XV5xtuE8vG8GpTIvnfzLI6+tqD2EwnoR57lj+QSGxGvJmmb:dbD6qyEwoR5lTS/cJ3nLe`
Yara	Microsoft_Office_File_Zero - Microsoft Office File

EXCEL.EXE "C:\Program Files (x86)\Microsoft Office\Office15\EXCEL.EXE" C:\Users\test22\AppData\Local\Temp\specification-1696062090.xls
2328
- regsvr32.exe "C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
  2220
- regsvr32.exe "C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
  352
- regsvr32.exe "C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
  2868

Name	Response	Post-Analysis Lookup
lfzombiegames.com	A 172.96.186.147	172.96.186.147
elitekhatsacco.co.ke	A 162.241.169.16	162.241.169.16
sukmabali.com	A 103.253.212.72	103.253.212.72

IP Address	Status	Action
103.253.212.72	Active	Moloch
162.241.169.16	Active	Moloch
164.124.101.2	Active	Moloch
172.96.186.147	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.103:49168 -> 162.241.169.16:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 103.253.212.72:443 -> 192.168.56.103:49175	2029340	ET INFO TLS Handshake Failure	Potentially Bad Traffic
TCP 192.168.56.103:49179 -> 172.96.186.147:443	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 192.168.56.103:49179 -> 172.96.186.147:443	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49179 -> 172.96.186.147:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 162.241.169.16:443 -> 192.168.56.103:49170	2029340	ET INFO TLS Handshake Failure	Potentially Bad Traffic
TCP 192.168.56.103:49182 -> 172.96.186.147:443	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 192.168.56.103:49182 -> 172.96.186.147:443	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49173 -> 103.253.212.72:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.103:49174 -> 103.253.212.72:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 172.96.186.147:443 -> 192.168.56.103:49182	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 172.96.186.147:443 -> 192.168.56.103:49182	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49181 -> 172.96.186.147:443	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 192.168.56.103:49181 -> 172.96.186.147:443	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49181 -> 172.96.186.147:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 172.96.186.147:443 -> 192.168.56.103:49181	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 172.96.186.147:443 -> 192.168.56.103:49181	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode
TCP 192.168.56.103:49169 -> 162.241.169.16:443	906200056	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 172.96.186.147:443 -> 192.168.56.103:49179	2230002	SURICATA TLS invalid record type	Generic Protocol Command Decode
TCP 172.96.186.147:443 -> 192.168.56.103:49179	2230010	SURICATA TLS invalid record/traffic	Generic Protocol Command Decode

Suricata TLS

No Suricata TLS

Allocates read-write-execute memory (usually to unpack itself) (5 events)

Time & API	Arguments	Status
NtProtectVirtualMemory Sept. 24, 2021, 4:43 p.m.	process_identifier: 2328 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 Sept. 24, 2021, 4:43 p.m.	process_identifier: 2328 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6b252000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 24, 2021, 4:43 p.m.	process_identifier: 2220 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 Sept. 24, 2021, 4:43 p.m.	process_identifier: 352 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 Sept. 24, 2021, 4:43 p.m.	process_identifier: 2868 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 Sept. 24, 2021, 4:43 p.m.	process_identifier: 2328 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

File has been identified by 12 AntiVirus engines on VirusTotal as malicious (12 events)

CAT-QuickHeal	Excel4.Downloader.44317
Sangfor	Malware.Generic-XLM.Save.ma29
K7AntiVirus	Trojan ( 00568efb1 )
K7GW	Trojan ( 00568efb1 )
Cyren	XF/Agent.AF.gen!Camelot
ClamAV	Xls.Downloader.SquirrelWaffle20921-9895790-0
McAfee-GW-Edition	X97M/Downloader.ll
GData	Generic.Trojan.Agent.MKLHK8
McAfee	X97M/Downloader.ll
Zoner	Probably Heur.W97ShellB
Ikarus	Trojan.Office.Doc
Fortinet	XF/Agent.AF!tr

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 Sept. 24, 2021, 4:43 p.m.	url: https://elitekhatsacco.co.ke/s6OkhAya/day.html stack_pivoted: 0 filepath_r: C:\Datop\test.test filepath: C:\Datop\test.test	2148270085
URLDownloadToFileW Sept. 24, 2021, 4:43 p.m.	url: https://sukmabali.com/rwZiioLFaG/day.html stack_pivoted: 0 filepath_r: C:\Datop\test1.test filepath: C:\Datop\test1.test	2148270085
URLDownloadToFileW Sept. 24, 2021, 4:43 p.m.	url: https://lfzombiegames.com/P8BJd4OW/day.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

specification-1696062090.xls

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