Malicious PDF — malware analysis report

Static analysis result for SHA-256 60364a010b7bc3d8…

MALICIOUS

PDF

48.6 KB Created: 2021-05-02 14:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9e263e5e75d136a185c44a4dd734f88 SHA-1: 416c79adb2c629131087908fafdd9bd50aab3de1 SHA-256: 60364a010b7bc3d8935a3eb95be96c6d5beb2c3d7b99d2e1783837813edf1298
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and small size, typical of a screenshot designed to hide clickable links. It contains a large number of external links, many pointing to PDF files hosted on dynamic DNS services, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier further support its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7209

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 48 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://golowaki.ru/strik?utm_term=the+son+of+neptune+book+1
    • https://cdn.sqhk.co/rejiwosujupa/hjruCja/12834898349.pdf
    • https://cdn.sqhk.co/jurufovowufu/dicxMjg/jubilalore.pdf
    • https://jowadukezivi.weebly.com/uploads/1/3/1/3/131379295/xuwosejukafisovimuxe.pdf
    • https://tovefejuxula.weebly.com/uploads/1/3/5/3/135325554/19edb7dbba.pdf
    • https://cdn.sqhk.co/navotezive/fhiThio/18352511284.pdf
    • https://gabodubelekopo.weebly.com/uploads/1/3/4/3/134356924/xujed.pdf
    • https://static.s123-cdn-static.com/uploads/4384029/normal_5ff88bedd8f33.pdf
    • https://cdn-cms.f-static.net/uploads/4498376/normal_60314180323bf.pdf
    • https://cdn.sqhk.co/bawusipa/hfihogi/door_catalogue_design.pdf
    • https://cdn.sqhk.co/jotepomi/dhjigbB/xbox_360_headphones_turtle_beach.pdf
    • https://cdn.sqhk.co/besogevipadi/jjhibse/dash_quest_2_hacked_apk.pdf
    • https://static.s123-cdn-static.com/uploads/4404488/normal_5fcf9551ac78e.pdf
    • https://cdn.sqhk.co/kekotenonaxu/jglSySO/5771475165.pdf
    • http://trynon.xyz/sativofinigewurepuxg004.pdf
    • https://cdn-cms.f-static.net/uploads/4415767/normal_6017a2baf35e4.pdf
    • https://wozomeki.weebly.com/uploads/1/3/0/7/130776066/f1d20a6977.pdf
    • http://bred-enligne.com/58437670497jlaql.pdf
    • https://wemavejuza.weebly.com/uploads/1/3/4/6/134689468/romilevades.pdf
    • https://static.s123-cdn-static.com/uploads/4497369/normal_5fc89c556a0e5.pdf
    • http://fofapisavinuf.epizy.com/resmed_bipap_service_manual.pdf
    • http://fofuxolisemaxim.epizy.com/68218467705.pdf
    • http://temavodagoja.rf.gd/vodawuxavogikavitaje.pdf
    • http://fufapawaxuta.rf.gd/newspaper_bill_format_in_word.pdf
    • http://jugebifa.epizy.com/36851268891.pdf

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