Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e048326c9489dc3…

MALICIOUS

PDF

42.0 KB Created: 2021-03-16 18:23:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17d6986cae7c65bab7b48225fb4300e9 SHA-1: 94be36509930ea629b13da2c6c7adeacf2efe085 SHA-256: 9e048326c9489dc3af7a2503505f6a6c05d72fc1e9c8414684823ec5a39f1290
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by multiple heuristics and ClamAV, specifically flagging it as a phishing trojan. It employs an image-only lure, typical of phishing attempts, with a clickable link that redirects to known malicious infrastructure. The presence of embedded URLs and the overall structure strongly suggest a phishing campaign aimed at users, likely to steal credentials or deliver further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7685

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://yafferge.ru/award?keyword=bibliographic+services+in+libraries+pdf
    • http://rejorevubirobu.sportsontheweb.net/36396209948.pdf
    • https://cdn-cms.f-static.net/uploads/4489237/normal_5fd12d2f77d7a.pdf
    • https://cdn-cms.f-static.net/uploads/4369915/normal_5fe68b9a3b95b.pdf
    • http://bipiraxas.iblogger.org/how_long_does_irobot_roomba_battery_last.pdf
    • https://cdn-cms.f-static.net/uploads/4414166/normal_603e256b8ca1b.pdf
    • https://cdn-cms.f-static.net/uploads/4484835/normal_6016c364ebe18.pdf
    • http://pibarulajido.getenjoyment.net/lefazizutux.pdf
    • https://cdn-cms.f-static.net/uploads/4485935/normal_60378f6542d83.pdf
    • https://cdn-cms.f-static.net/uploads/4502248/normal_5fd378004a766.pdf
    • https://cdn-cms.f-static.net/uploads/4445866/normal_602ed7e02aa76.pdf
    • http://vopukisavenif.medianewsonline.com/kijivutotas.pdf
    • https://static.s123-cdn-static.com/uploads/4452385/normal_6005b372a79ae.pdf
    • https://cdn-cms.f-static.net/uploads/4454277/normal_5fd6eeecaf454.pdf
    • http://salimom.mygamesonline.org/asme_b31._3_latest_edition.pdf
    • http://zozilejumulis.22web.org/kigajusimunabipibemapalel.pdf
    • https://cdn-cms.f-static.net/uploads/4426814/normal_601f408a2558b.pdf
    • http://tamodemuror.getenjoyment.net/rational_rose_uml_tutorial.pdf
    • http://tamefizorala.epizy.com/2451573017.pdf
    • http://duwamiwimi.rf.gd/sscnr_answer_key_chsl.pdf
    • http://wififeju.atwebpages.com/ribisodomelavur.pdf
    • http://xovolefewawex.atwebpages.com/32214076703.pdf
    • http://gipizaz.rf.gd/zisuxawexafujuwumasemog.pdf

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