Malicious PDF — malware analysis report

Static analysis result for SHA-256 6016dab5b84e20fc…

MALICIOUS

PDF

65.3 KB Created: 2021-02-13 11:28:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1c8521515eabb7189119546b32d7527b SHA-1: a64d329f9827f10a27c57d5b1b206dd0b4cf4462 SHA-256: 6016dab5b84e20fc97a54f009acad8bfed0a21128a3183b034fd5eeec446c09a
254 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
  • 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.
  • 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 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.
  • 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://crophysi.ru/wix?keyword=witchery+ghost+of+the+light In PDF document text
    • https://cdn.sqhk.co/votijavos/gjeieje/lapinivexez.pdfIn PDF document text
    • https://wadodimimilupe.weebly.com/uploads/1/3/0/8/130873890/fevoxoz_pigiziru.pdfIn PDF document text
    • https://cdn.sqhk.co/difanemifal/jbihhg5/tebinasodikanawotaxilike.pdfIn PDF document text
    • https://nosodelutota.weebly.com/uploads/1/3/1/8/131857544/2697756.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/h3jcJji/parsec_arcade_keyboard_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/kowetitemaro/icihQgg/offroad_4x4_driving_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/hidq2Pz/pokemon_home_mystery_gift_switch.pdfIn PDF document text
    • https://cdn.sqhk.co/roratumopiv/jjiheFK/wuzulivamabegi.pdfIn PDF document text
    • https://cdn.sqhk.co/devisojop/S30jhjj/xbox_gaming_headset_reviews.pdfIn PDF document text
    • https://fisezofibidan.weebly.com/uploads/1/3/4/3/134316577/xuvus.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/biwuwukesazef/82601228059.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/14651858617.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/vujeles.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/noseselebebivogepadu.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/magiba.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/rupimeludubideb.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/87302332445.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/adobe_xd_size.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_off0000c3f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3F9 5048 bytes
SHA-256: 8c0759fa18af494beb372f88a05d0e69c05d68074bdb843f79df129070367c07
font_01_sfnt_off0000d542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD542 10216 bytes
SHA-256: 7b9e22222511f62baf442ff9349b0770e363fb179862fae1ca6552026a350c10

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