Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa835c7fcbe74d38…

MALICIOUS

PDF

75.1 KB Created: 2020-12-17 00:07:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 59704ae31044e052c701db1aded27838 SHA-1: e0f6a9affd14e86088278970f478555f7e3828d7 SHA-256: aa835c7fcbe74d3887828fae348ede040b9521ced8dd0acb9bd80c7ab92243c9
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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.
  • 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
  • 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://traffking.ru/wb?keyword=django%20authenticationform%20error_messages In PDF document text
    • https://cdn-cms.f-static.net/uploads/4420476/normal_5f98d14d8627c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc525a9e2fce462bca77587/t/5fd707b9dca221526058a284/1607927737667/totudibizilut.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/80104799041.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/so_nong_nghiep_ha_noi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf553bbc819f1cf4cf7620/1606374715654/audio_digest_cme_promo_code.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/93921009653.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfe7e212facd59cea75dab/t/5fc22d52e6d49a06bbdb9755/1606561106989/23605134193.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/423c7bc0-1e24-4228-b6e6-320025459275/95449301029.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50c986b97992eb5766a10/t/5fc657c4f3de5e49b53daabd/1606834116811/fofulunamutixudoxabamew.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf5e56181af13ce276be57/t/5fd1f625ac13f65f6617fc89/1607595561885/metropcs_iphone_11.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc54343116eb00e3c68afb8/t/5fcc3eff978da30c56f0e3a8/1607220991346/9351527734.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5dcbf16f6d44b07e099ec/t/5fd69d5c0f11661d4c355eb8/1607900509190/jelutera.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe256f08845d092453af63/1606296944698/3907804839.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d54b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54B 5248 bytes
SHA-256: 6308192af99fbd4d04002a1377502595372417ca7e5146d3eb2c0975fc0c0662
font_01_sfnt_off0000e710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE710 12564 bytes
SHA-256: 2c1745537785b319d1636d5b4da56e897129c7e162fbcb5f3117cab2d8f53009
font_02_sfnt_off00010f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F2D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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