Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cca197d5c4d3cb7…

MALICIOUS

PDF

46.8 KB Created: 2020-08-22 02:07:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb08479d8eeea75c491abeea630add81 SHA-1: 49592bfafc760d971de170289cbebe260c67597d SHA-256: 6cca197d5c4d3cb71a0c353a28bdd61da857c04316b2a5b128c636fecb115374
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a primary redirector pointing to known malicious infrastructure. The document body, though heavily obfuscated, contains the same redirector URL. This indicates a phishing or scam attempt using a link farm to distribute malware or lead users to malicious sites.

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=iabp+guidelines+ppt In PDF document text
    • http://pupefinax.robynpforrryan.com/uploads/1/3/2/6/132696063/pegekepogon.pdfIn PDF document text
    • http://files.michiganpreventionassociation.org/uploads/1/3/0/7/130739351/cce1316013e9150.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://cdn.shopify.com/s/files/1/0441/4350/9656/files/fi_6130z_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6049/3465/files/causes_of_overpopulation_in_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3837/5074/files/zisujiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3070/7356/files/67474715509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6330/files/subuxawatubesevisugojup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/fexilajuvagekovosakob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/rozik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3984/files/abba_mamma_mia_free_piano_sheet_music.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

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_off00006b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B94 4880 bytes
SHA-256: a3ffea3b938af1fbf08a6e63ed6f50c50afca8af5920221a9c5f478e3468910d
font_01_sfnt_off00007c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C29 10696 bytes
SHA-256: a336b8d292f04bc773a2ca2ac36661902e2cd6021fcfb9a3dd309b87c1706b15
font_02_sfnt_off0000a0b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B8 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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