Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57659717f594efa…

MALICIOUS

PDF

40.6 KB Created: 2020-08-25 08:57:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 140dc1c6742ed80f6beb9d8407626a2f SHA-1: 49cf7e3ba8880d237d9f9fd42e3f295440baa76f SHA-256: d57659717f594efa22594536b1ec620e209ed6c86ec2a9d723a99da41b308bd2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, including one pointing to a known malicious redirector. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=call+of+duty+advanced+warfare+wallpaper+android', suggesting a lure to a malicious site. The presence of a link farm further supports the malicious intent.

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.cc/pify?keyword=call+of+duty+advanced+warfare+wallpaper+android In PDF document text
    • http://files.buzzboxguitars.com/uploads/1/3/2/7/132712447/e922318428b6639.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/1/0437/1228/2789/files/jedisubakad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/teriloditivupifazamogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/38914176861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8538/9206/files/lixokidozefus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/basic_bodice_block.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5008/2202/files/82525569427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/785818290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8791/7209/files/azoospermie_scrtoire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9849/5389/files/financial_accounting_9th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/73916558942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0166/5960/files/annex_10_volume_1.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000434f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x434F 5128 bytes
SHA-256: 3b9418362fd5edd59ec8fbd2fc4df647b658b2f5a7d8ae6252c716f3f13d370f
font_01_sfnt_off000054ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EE 13408 bytes
SHA-256: 1d4150a8b217b517c5913dd5e5a76b62a7cd9c585c1127c976fd371b51fd1e7c
font_02_sfnt_off00007e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8D 16164 bytes
SHA-256: 4b52fd5da643d9c08cc0a86f773b2f024e3274f3f861dfcac100db1ef433cf06

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