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Dropper1.exe

Malicious Library Admin Tool (Sysinternals etc ...) UPX MZP Format PE File OS Processor Check PE32
  1. Resubmit sample
Category Machine Started Completed
FILE s1_win7_x6403_us Sept. 23, 2023, 9:32 a.m. Sept. 23, 2023, 9:40 a.m.
Size 3.2MB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 5bdab56a23cabe2a7d38338ba91ecba3
SHA256 4fcf7d47d22489c1392a18592e8ed0f9387fc81cca85fde100160e9569fea0c9
CRC32 457178D8
ssdeep 49152:iN0t+V1XMFH+qJtMgASCOUBBuAZHbMYastTXintSiA98PQMDz:iNfXWHEXeAaYasRQgi3P
Yara
  • Malicious_Library_Zero - Malicious_Library
  • Admin_Tool_IN_Zero - Admin Tool Sysinternals
  • UPX_Zero - UPX packed file
  • PE_Header_Zero - PE File Signature
  • IsPE32 - (no description)
  • mzp_file_format - MZP(Delphi) file format
  • OS_Processor_Check_Zero - OS Processor Check

Name Response Post-Analysis Lookup
i.ibb.co
A 172.96.160.210
A 172.96.160.222
A 104.194.8.120
A 104.194.8.143
172.96.160.222
IP Address Status Action
104.194.8.143 Active Moloch
164.124.101.2 Active Moloch
172.96.160.210 Active Moloch

Suricata Alerts

Flow SID Signature Category
TCP 172.96.160.210:443 -> 192.168.56.103:49162 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49161 -> 172.96.160.210:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49166 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49185 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49170 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49167 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49194 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49176 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49173 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49169 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49189 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49205 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49179 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49172 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49190 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49181 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49174 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49202 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49182 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49178 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49207 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49200 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49183 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49192 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49203 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49204 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49193 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49208 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49196 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49164 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49165 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49197 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49175 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49171 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49199 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49184 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49177 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49186 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49180 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49191 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.103:49187 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49206 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 104.194.8.143:443 -> 192.168.56.103:49188 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49195 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 104.194.8.143:443 -> 192.168.56.103:49198 2029340 ET INFO TLS Handshake Failure Potentially Bad Traffic
TCP 192.168.56.103:49201 -> 104.194.8.143:443 906200054 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined

Suricata TLS

No Suricata TLS

Time & API Arguments Status Return Repeated

GetComputerNameW

 computer_name: TEST22-PC
1 1 0

GetComputerNameW

 computer_name: TEST22-PC
1 1 0
section .itext
section .didata
resource name UNICODEDATA
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

 process_identifier: 1880
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00af0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0
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