MALICIOUS — 665f4a7e93fd3509f95e304b8af2d7038d60cae7bc3f3e642629c53fa968b4b3

MALICIOUS — 665f4a7e93fd3509f95e304b8af2d7038d60cae7bc3f3e642629c53fa968b4b3 is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100). 5 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 665f4a7e93fd3509f95e304b8af2d7038d60cae7bc3f3e642629c53fa968b4b3
• SHA-1: 49f0f71ab6a79887a5fa74fd31b30146de8b9763
• MD5: 7cef2a61ffa07935df2535c86baca3b2
• ssdeep: 768:gp5HZLRNHsHBmtftITWSz7kueN/s6BXt2B:8dZsBmpWT7k9NEo2B
• TLSH: T1942F8EF745A7DD4C7E8BDB436EFB112D648AD3842132DA50A188A23D80BC5FE6F40921
• Submitted as: 665f4a7e93fd3509f95e304b8af2d7038d60cae7bc3f3e642629c53fa968b4b3
• File type: pdf · Size: 34624 bytes
• Verdict: malicious (98/100)

Detections (5 of 54 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Microsoft Defender: Trojan:PDF/Phish.CFN!MTB
• Emsisoft (Emergency Kit): PDF.Spam.Heur.2
• Trellix Stinger (McAfee): PDF/Phish-TWM!7CEF2A61FFA0
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1105

Why this verdict

The malicious score of 98/100 is the fusion of 10 weighted signals:

• Microsoft Defender flagged Trojan:PDF/Phish.CFN!MTB (rule Trojan:PDF/Phish.CFN!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.2 (rule PDF.Spam.Heur.2) - engine signal, weight 0.55, confidence 0.85
• Trellix Stinger (McAfee) flagged PDF/Phish-TWM!7CEF2A61FFA0 (rule PDF/Phish-TWM!7CEF2A61FFA0) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Hoax.PDF.Phish.gen (rule HEUR:Hoax.PDF.Phish.gen) - engine signal, weight 0.55, confidence 0.85
• Contacted 12 external host(s) and 3 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule high-entropy-blob) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: http://netcdn.tw/app/431946152/how-do-you-earn-robux-game-hack, http://lib.uho.ac.id/library/repository/how-to-make-clothes-free-on-roblox_GM431946152.pdf, http://lib.uho.ac.id/library//repository/daily-spin_GM406889139.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

1006 behavior events · 0 ATT&CK techniques · 1 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• c.pki.goog
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• desktop-hsgcbep._dosvc._tcp.local
• desktop-hsgcbep(1)._dosvc._tcp.local
• ntp.ubuntu.com
• _dosvc._tcp.local
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://c.pki.goog/r/r1.crl
• http://x2.c.lencr.org/
• http://ye.c.lencr.org/
• http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
• http://yr.c.lencr.org/

Dropped files

• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://netcdn.tw/app/431946152/how-do-you-earn-robux-game-hack
• http://lib.uho.ac.id/library/repository/how-to-make-clothes-free-on-roblox_GM431946152.pdf
• http://lib.uho.ac.id/library//repository/daily-spin_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/coin-master-free-500-spins-link_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/robux-no-human-verification_GM431946152.pdf
• http://lib.uho.ac.id/library//repository/coin-master-tips_GM406889139.pdf
• http://lib.uho.ac.id/library//repository/minecraft-pe-hacks_GM479516143.pdf
• http://lib.uho.ac.id/library//repository/free-spins-in-coin-master-without-human-verification_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/coin-master-free-spins-daily-2021_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/robux-hack-me_GM431946152.pdf
• http://lib.uho.ac.id/library/repository/coin-master-hack-spins-android_GM406889139.pdf
• http://lib.uho.ac.id/library//repository/free-roblox-accessories_GM431946152.pdf
• http://lib.uho.ac.id/library/repository/hacker-minecraft-song_GM479516143.pdf
• http://lib.uho.ac.id/library/repository/coin-master-hack-ios-download-2021_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/free-coin-and-spin-link_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/girl-roblox-avatar_GM431946152.pdf
• http://lib.uho.ac.id/library/repository/coin-master-fan-hack_GM406889139.pdf
• http://lib.uho.ac.id/library/repository/coin-master-hack-no-root_GM406889139.pdf
• http://lib.uho.ac.id/library//repository/robux-gainer_GM431946152.pdf
• http://lib.uho.ac.id/library/repository/minecraft-115-2-hacks_GM479516143.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://c.pki.goog/r/r1.crl

Embedded domains

• netcdn.tw
• lib.uho.ac.id
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 85.210.196.11
• 104.208.16.94
• 203.26.79.13
• 52.110.12.53
• 4.230.171.124
• 48.211.4.16
• 4.144.132.223
• 135.232.92.97
• 74.178.240.61
• 92.223.78.30
• 20.184.175.6
• 72.145.35.107

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report