MALICIOUS — 91f505ddc4b0ff798f4858c037fb8840f8e9ce16a4783e26d4c99da94b850c98

MALICIOUS — 91f505ddc4b0ff798f4858c037fb8840f8e9ce16a4783e26d4c99da94b850c98 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Vobfus family. 4 of 56 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 91f505ddc4b0ff798f4858c037fb8840f8e9ce16a4783e26d4c99da94b850c98
• SHA-1: 113475a4a547e63b481fa1cf676517b8f39bb767
• MD5: 01c7b23e5075cdcee7f945d48709b414
• imphash: e10b385d3760c25155223c1cd06e914f
• ssdeep: 1536:C7OHZKIn2YZ4/2nDxHnSh/2BIr7fbmKBKpKrKAKcSuK6G:NHZR2t2BIr7DmKBKpKrKAKVD
• TLSH: T13938914795168489C2FADAAF4E997FCE14CD2A044F77005C2DEE025E95823B3D228F6D
• Submitted as: 91f505ddc4b0ff798f4858c037fb8840f8e9ce16a4783e26d4c99da94b850c98
• File type: pe · Size: 80105 bytes
• Verdict: malicious (99/100) · Family: Vobfus

Detections (4 of 56 engines)

• ClamAV (daily): Win.Worm.Vobfus-7460240-0
• Microsoft Defender: Worm:Win32/Vobfus.AC
• Emsisoft (Emergency Kit): Gen:Trojan.Chinky.2
• Kaspersky (KVRT): Worm.Win32.VBNA.btnv

MITRE ATT&CK

• T1057

Why this verdict

The malicious score of 99/100 is the fusion of 6 weighted signals:

• ClamAV (daily) flagged Win.Worm.Vobfus-7460240-0 (rule Win.Worm.Vobfus-7460240-0) - engine signal, weight 0.90, confidence 0.95
• Microsoft Defender flagged Worm:Win32/Vobfus.AC (rule Worm:Win32/Vobfus.AC) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Trojan.Chinky.2 (rule Gen:Trojan.Chinky.2) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Worm.Win32.VBNA.btnv (rule Worm.Win32.VBNA.btnv) - engine signal, weight 0.55, confidence 0.85
• Contacted 3 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60

Dynamic analysis (windows)

14871 behavior events · 0 ATT&CK techniques · 0 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• update.googleapis.com
• login.live.com
• desktop-hsgcbep
• v20.events.data.microsoft.com
• config.edge.skype.com
• windows.msn.com
• www.msn.com
• officeclient.microsoft.com
• odc.officeapps.live.com
• www.bing.com
• assets.msn.com
• licensing.mp.microsoft.com
• watson.events.data.microsoft.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded URLs

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

Embedded IP addresses

• 4.150.223.98
• 52.123.252.243
• 4.230.171.124
• 52.253.84.76
• 52.110.12.32
• 172.178.240.162
• 52.110.12.45

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report