Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f5626a1d97c0231…

MALICIOUS

PDF

71.5 KB Created: 2021-02-22 07:49:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 13f9faa233d3c2e22fe00301f2bd7406 SHA-1: 38da3bc185d704060145ebe379e4a7470c4eec18 SHA-256: 2f5626a1d97c0231481eeca2f781095875d4ee6895d740b9e223ebbcb698347a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://druttle.ru/wix?keyword=craftsman+12+volt+battery+charger+manual PDF link annotation
    • https://cdn.sqhk.co/keragipiki/iePgihg/zombie_hunter_apocalypse_survival_mod_apk.pdfIn PDF document text
    • http://fanitukasi.22web.org/33359825178.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450044/normal_5ffa14d450d97.pdfIn PDF document text
    • https://cdn.sqhk.co/poronujefino/cTwURx8/sheltered_in_the_arms_of_god_chords.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408993/normal_5ff7c507289c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417024/normal_5ff5eaa25644f.pdfIn PDF document text
    • http://kawibijew.22web.org/jimapenotebo.pdfIn PDF document text
    • http://gijebuk.iblogger.org/xenezawudo.pdfIn PDF document text
    • https://cdn.sqhk.co/dimowitop/lgd878H/zelodewidu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/chashme_baddoor_movie_song_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/how_do_i_get_my_comcast_remote_to_control_my_tv_volume.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/49927459.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/8190350833.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/data_structure_algorithms_tutorial_tutorialspoint.pdfIn PDF document text
    • http://wekolaxoretewov.epizy.com/88568380112.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/chemistry_periodic_table_video.pdfIn PDF document text
    • http://zefofipavefo.rf.gd/96193906764.pdfIn PDF document text
    • https://s3.amazonaws.com/gekojulog/safajuguguvok.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/17._4_evidence_of_evolution_answer_key.pdfIn PDF document text
    • http://wojodiguf.rf.gd/xulenefomujunuxaw.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB7 5684 bytes
SHA-256: fbb100f5e546a95a126ab6f233fa107a3ce22e59232e6a7812036ab86a64d9a0
font_01_sfnt_off0000edfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDFA 10192 bytes
SHA-256: 1ab5b35e38e9397f0f314df1fac3865688bca6dc87ddc0c22629917e8671da83

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