Malicious PDF — malware analysis report

Static analysis result for SHA-256 49eb7cd539523854…

MALICIOUS

PDF

76.3 KB Created: 2021-03-30 17:36:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ae15d2525d71cf4438c74f14d1aaf6d SHA-1: e23d10a02c3460443e69dc94b790bf6738ab334f SHA-256: 49eb7cd5395238541973741bd8995676c536247fb69ec858daca83c1660ed2d8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic indicating it is part of a link farm, directing users to external URLs. One prominent URL, 'https://xezojetit.ru/award?keyword=java+spring+annotations+pdf', is presented as a lure. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. While no scripts were directly extracted, the PDF structure and external links suggest an attempt to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6070

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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/award?keyword=java+spring+annotations+pdf
    • https://cdn.sqhk.co/givifevulo/gfk80QI/digital_concert_hall_berlin_philharmonic.pdf
    • https://cdn.sqhk.co/joxipadij/er4g4gg/pc_build_parts_needed.pdf
    • https://cdn.sqhk.co/tuzevawu/hjIqiaW/teladamel.pdf
    • https://cdn-cms.f-static.net/uploads/4375093/normal_5fd9cb538cd44.pdf
    • https://cdn.sqhk.co/xawowatu/wRwhgQu/olympics_2016_winners_country.pdf
    • https://cdn.sqhk.co/taxodisilif/Vhh7jh1/final_judgement_bandcamp.pdf
    • https://cdn-cms.f-static.net/uploads/4459469/normal_5fd7040400603.pdf
    • https://cdn.sqhk.co/vefomatakin/jo9Kjif/zoxofulodaxamogamimituni.pdf
    • https://cdn.sqhk.co/tuseliwi/wjfgiid/tulipola.pdf
    • https://cdn.sqhk.co/letinumi/ijfhhhC/najonebutoji.pdf
    • https://static.s123-cdn-static.com/uploads/4505326/normal_5ff0edbf1d90a.pdf
    • https://cdn.sqhk.co/sozaxejiv/ap5hihj/bubble_pop_games_for_android.pdf
    • https://static.s123-cdn-static.com/uploads/4411493/normal_5fef80b7024db.pdf
    • https://cdn.sqhk.co/vemunaxudug/jpgdhi7/fagaludilu.pdf
    • https://cdn.sqhk.co/metexemoraga/SkVKhig/tixuleseva.pdf
    • https://s3.amazonaws.com/musoxifuvitalo/sozezeg.pdf
    • https://s3.amazonaws.com/silubebebefuju/midosatajurufakepu.pdf
    • https://a12a05ab-6462-4855-b086-b0a2a961d6d8.filesusr.com/ugd/2c76f4_5ea8b495237a4fc1a27d5ba0a9c20f71.pdf?index=true
    • https://2791e1c6-719d-47aa-bdc5-1556df251b63.filesusr.com/ugd/7757c5_b31bce5281da45dfaa29c73a15fa3950.pdf?index=true
    • https://s3.amazonaws.com/fezenur/tijuvitemiremivawik.pdf
    • https://s3.amazonaws.com/gasodamuza/sanuve.pdf
    • https://s3.amazonaws.com/vovuzize/crochet_patterns_for_summer_chemo_hats.pdf
    • https://19aaccd0-9772-41b6-85c4-be118606641a.filesusr.com/ugd/a12125_df73ec520cd6427dacab339c3e9ee4c2.pdf?index=true
    • https://168d2a81-f750-40c6-a653-3787650f980d.filesusr.com/ugd/3bcfef_134b23c3757f47c1bf611840a8f0a2bd.pdf?index=true
    • https://62abf401-5fc9-4991-ac00-cb6a0c8cf8ec.filesusr.com/ugd/e4ff69_27e76029a3154394ae94cc4aeb4d12a8.pdf?index=true

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