Malicious PDF — malware analysis report

Static analysis result for SHA-256 d70b753e733481d9…

MALICIOUS

PDF

76.7 KB Created: 2021-03-15 19:20:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 72546dad552f2a9719b0f5d955a7f15a SHA-1: 502f029c4cf75f1e8fe0adc722a1b06f90150e6c SHA-256: d70b753e733481d9c8797dbff54cf91dcf29247351335a6efa8641cba0d4b398
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs, many of which are hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of a 'download button' heuristic further supports a malicious intent to trick users into downloading a payload. While no scripts were directly extracted, the overall structure and URL patterns are indicative of a downloader or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/award?keyword=dnd+5e+elemental+evil+player+s+companion+pdf PDF link annotation
    • https://deriwofapavuz.weebly.com/uploads/1/3/4/3/134311795/17d2d150f18c5.pdfIn PDF document text
    • http://kefets.xyz/todutct0y4.pdfIn PDF document text
    • http://itawegan.space/pusufikaxosigafowomarevtlh3w.pdfIn PDF document text
    • http://mediaverifiedbadge.com/how_to_day_trade_without_25k_td_ameritrades4jb4.pdfIn PDF document text
    • https://zanasebumafuwaj.weebly.com/uploads/1/3/4/8/134899829/fegakajiju.pdfIn PDF document text
    • http://trastenmyqort.online/poriwozift55sy.pdfIn PDF document text
    • http://fishing-rods2.club/kuradobafegirivopajemopem5xl60.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://joriboka.epizy.com/asleep_custom_map_minecraft.pdfIn PDF document text
    • https://cdd249b8-77b1-4a94-b024-8995efe4d959.filesusr.com/ugd/d394ff_ffd067cb077a4ee19721b78ec33b0bd1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wemazun/how_to_use_the_waring_pro_waffle_maker.pdfIn PDF document text
    • http://xafegewiko.epizy.com/rowibiduperegesav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22889955-8abd-4feb-b3fc-d31cbc1b7c6e/46554240469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e80831d6-d187-4782-9b51-0f46fee8e88e/zogawora.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/68840824579.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e0ec5f3-471b-41ae-8128-fb5f4ea839c2/wivazugasikasijajexuso.pdfIn PDF document text
    • http://pudekixepubaz.epizy.com/93355142062.pdfIn PDF document text
    • https://8d94caac-80d5-4f6d-a73a-04ed47837dc1.filesusr.com/ugd/585b1d_3ba6f16c4ece44629f550cc01b9d16f7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c07d9675-9bf6-45d2-a8e9-e9b628740ca9/knex_manuals.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/mebimamuzeduzibo.pdfIn PDF document text
    • https://550dfcec-0280-4316-a0d5-68b74a7a20b9.filesusr.com/ugd/f59309_e3e107ab1ea54e1dbb83d0253b0868e0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0be7a9b5-797a-4b72-9bce-4bb9252bee09/danibez.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/mopitigomowere.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E4 5588 bytes
SHA-256: aad776e6028560dc7180eab93d783908c3004b3d93c5f81b471f114b159b65be
font_01_sfnt_off0000ebe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE1 10280 bytes
SHA-256: 0ca423d5f75099d8c81ccd8f184768442bdcc835010187b2eb93477c0db85189
font_02_sfnt_off00010f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F6D 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501