Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f17785cd8ce2285…

MALICIOUS

PDF

112.5 KB Created: 2020-08-08 01:40:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e33018296140e487335a1663061f6bfd SHA-1: c834302c7c32e24c8e6d7ad2fc1f6e00e52dcef2 SHA-256: 7f17785cd8ce22852403283f3ad42a2c141245e955b2119d9f8b38087a5e4936
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary malicious URL, https://ttraff.com/pify?keyword=surah+al+ankabut+pdf, is identified as a redirector. The document body, though heavily obfuscated, contains this URL, suggesting an attempt to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.com/pify?keyword=surah+al+ankabut+pdf In PDF document text
    • http://vesom.mainedogtrainer.com/uploads/1/3/1/0/131070590/dowodewawo-begamosunoxu.pdfIn PDF document text
    • http://files.edfwarbirds.com/uploads/1/3/0/7/130739227/jabezab.pdfIn PDF document text
    • http://files.miniphysio.co/uploads/1/3/1/4/131407572/5941284.pdfIn PDF document text
    • http://files.bossbattlegamesarcade.com/uploads/1/3/0/7/130775588/tusebugujukubimo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/35345139703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1123/6259/files/dazife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/the_time_pandemonium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/1478832171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6698/1542/files/57441877825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1317/6469/files/83446053539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1727/9400/files/72732015497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/42099619717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9095/1848/files/32646188926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0399/2474/files/pisufunuxemelupasik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2878/7878/files/scotts_push_mower.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/logibupufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/javenijarexelejamuv.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00017aba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x17ABA 33084 bytes
SHA-256: 02809568dda3d90e96845662ea0eccd6ff402837b47fd1f594fdf04160c61352
font_00_sfnt_off000140a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140A7 5256 bytes
SHA-256: d4baf1b3b7a49fdf621c2659ffe01cb59649e47da408cb809312729b9c89f4b6
font_01_sfnt_off0001527a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1527A 12580 bytes
SHA-256: f28949f2b1cb2e8df2a01a28da88f2a3f6138bfa76c7c4f32f7baef5ddfde0d4