MALICIOUS — f31a1573a6cc9ec309866ad65b7963a963c702c140d278bc2fb96caab9bd1f8d

MALICIOUS — f31a1573a6cc9ec309866ad65b7963a963c702c140d278bc2fb96caab9bd1f8d is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the C83B492E family. 4 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: f31a1573a6cc9ec309866ad65b7963a963c702c140d278bc2fb96caab9bd1f8d
• SHA-1: d2fa94a657ac1deb593a3d23cfa4598fa68ba67f
• MD5: b8cb2f169478259f019c03d8e688224a
• imphash: 95122753ea27818b35f9b51859e4c692
• ssdeep: 49152:Qoa1taC070dwmnBFTZuQBQtqeXahgsueIwMhL3:Qoa1taC0hqRZlDeaIwMhL3
• TLSH: T1735A239A9A1DA70CD3F1C5807C69127EC481A4EB5338288F528FF11D779B9A77C101AB
• Submitted as: f31a1573a6cc9ec309866ad65b7963a963c702c140d278bc2fb96caab9bd1f8d
• File type: pe · Size: 1958400 bytes
• Verdict: malicious (99/100) · Family: C83B492E

Detections (4 of 56 engines)

• ClamAV (daily): Win.Malware.Zusy-9764479-0
• Microsoft Defender: Trojan:Win32/Salgorea!pz
• Emsisoft (Emergency Kit): Dump:Generic.Dacic.17983.C83B492E
• Kaspersky (KVRT): Trojan.Win32.Bingoml.ckfs

MITRE ATT&CK

• T1543.003
• T1112

Why this verdict

The malicious score of 99/100 is the fusion of 8 weighted signals:

• ClamAV (daily) flagged Win.Malware.Zusy-9764479-0 (rule Win.Malware.Zusy-9764479-0) - engine signal, weight 0.90, confidence 0.95
• Microsoft Defender flagged Trojan:Win32/Salgorea!pz (rule Trojan:Win32/Salgorea!pz) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Dump:Generic.Dacic.17983.C83B492E (rule Dump:Generic.Dacic.17983.C83B492E) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Trojan.Win32.Bingoml.ckfs (rule Trojan.Win32.Bingoml.ckfs) - engine signal, weight 0.55, confidence 0.85
• Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
• Contacted 11 external host(s) and 9 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Memory forensics: 4 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in SppExtComObj.E (pid 5904) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

6712 behavior events · 2 ATT&CK techniques · 2 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• 76.0.240.10.in-addr.arpa.
• 1.0.240.10.in-addr.arpa.
• 251.0.0.224.in-addr.arpa.
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• 252.0.0.224.in-addr.arpa.
• desktop-hsgcbep
• update.googleapis.com
• login.live.com
• self.events.data.microsoft.com
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• 1.0.240.10.in-addr.arpa

Dropped files

• C:\Users\analyst\AppData\Local\Temp\D179.tmp - cafc059d9474f64c7a7f7816f7f3a082441bc62e99b36c60d43c27f8c3e9e012
• c23064a44f8025151941b27bab0c97decfb8f2128fc3a5bb5fb1dd5616871e23 - c23064a44f8025151941b27bab0c97decfb8f2128fc3a5bb5fb1dd5616871e23

Embedded URLs

• http://schemas.microsoft.com/SMI/2005/WindowsSettings
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• schemas.microsoft.com
• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 52.182.141.63
• 20.184.175.16
• 172.215.188.232
• 20.42.65.84
• 20.184.175.7
• 85.210.196.11
• 13.89.179.15
• 20.42.73.25
• 72.145.35.106
• 52.148.114.188
• 172.172.255.218
• 172.66.2.5
• 52.230.60.54
• 52.110.12.22
• 4.230.171.124

File paths

• C:\fc]w

More C83B492E samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report