Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c4a23c145db167a…

MALICIOUS

PDF

25.5 KB Created: 2020-05-22 06:59:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: faa7352e14e866adaa12767b22e2ca89 SHA-1: c442e082081054e08b6170d45cbea6f2cc52cfa2 SHA-256: 1c4a23c145db167a5b6d9f209f536622a35a62dfd11b0bfd1d7926519ae11882
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF is identified as a malicious screenshot lure, designed to trick users into clicking an external link. The document body contains numerous URLs pointing to external PDF files, likely part of a link farm or SEO poisoning scheme. The primary URL, http://otbanks.com/uploads/1/3/0/2/130288412/130288412.html#garmin+gnc+300xl+installation+manual, is likely the intended destination for the user, potentially leading to a phishing page or further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 4

  • 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.
  • 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 25 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 http://otbanks.com/uploads/1/3/0/2/130288412/130288412.html#garmin+gnc+300xl+installation+manual
    • http://stephen-laurence.com/uploads/1/3/0/2/130288326/8833158.pdf
    • http://superiorfloorsolutionsllc.com/uploads/1/3/1/4/131483772/lafupamavurowijewava.pdf
    • http://lumensmart.net/uploads/1/3/0/9/130969548/kotigimam_dudetepaji.pdf
    • http://myonlyescape.com/uploads/1/3/1/4/131483468/ratonalugofu-mugixapike-sotubatov-tijazugigupik.pdf
    • http://shopsnootyowl.com/uploads/1/3/0/7/130739046/2344583.pdf
    • http://statewidett.com/uploads/1/3/0/8/130814976/milig.pdf
    • http://aspenvalleywildlifesanctuary.ca/uploads/1/3/0/5/130539908/1d717287.pdf
    • http://tourdetrykes.com/uploads/1/3/0/4/130436390/mejefizozegepe-nukota.pdf
    • http://mcgrawpowersystems.com/uploads/1/3/0/3/130323113/ac18af66.pdf
    • http://gilchristhomerestoration.com/uploads/1/3/0/6/130604031/3352c4e1.pdf
    • http://curleyscience.com/uploads/1/3/0/6/130621322/4506827.pdf
    • http://trueknowledgebeats.com/uploads/1/3/0/7/130739190/4328092.pdf
    • http://theravenousreader.com/uploads/1/3/0/4/130477074/ripemiwusuz.pdf
    • http://wavideos.xyz/uploads/1/3/0/6/130620522/saturevubak.pdf
    • http://cretrends2015.com/uploads/1/3/0/2/130270901/e54d266.pdf
    • http://coastalventurescc.com/uploads/1/3/0/6/130620382/kedorazi.pdf
    • http://mkbrei.com/uploads/1/3/0/6/130639950/78a0e9f82915.pdf
    • http://highcountryevents.net/uploads/1/3/0/3/130379163/mesudeg_wekil_ririsirolirojid_ripuwab.pdf
    • http://thrillerinajijic.com/uploads/1/3/1/4/131453749/bopame_lomazikexi_tiwiriwesu_regataz.pdf
    • http://sophiesusedpanties.com/uploads/1/3/0/5/130589391/2646501.pdf

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