Malicious PDF — malware analysis report

Static analysis result for SHA-256 0253f95f2a52b60d…

MALICIOUS

PDF

62.8 KB Created: 2020-08-17 04:30:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78382ea5abc219f688774c8bb418b73c SHA-1: 1c01876a0aa004bac70791c5585471019f49624a SHA-256: 0253f95f2a52b60d8705c44e190c7b77679ce7c6f1ecd138d9963a6eacef7895
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users into clicking links. The embedded URL `https://ttraff.cc/pify?keyword=composition+and+inverses+of+functions+worksheet+pdf` is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary purpose is to drive traffic to this malicious site, likely for phishing or further malware delivery.

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=composition+and+inverses+of+functions+worksheet+pdf In PDF document text
    • http://files.tifillinois.com/uploads/1/3/0/7/130775331/semopawefowo.pdfIn PDF document text
    • http://files.brodyquixote.com/uploads/1/3/1/3/131381540/1353035.pdfIn PDF document text
    • http://files.bytheslicegourmetdesserts.com/uploads/1/3/0/8/130813325/tajogatexoro.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/1/0431/3051/9716/files/dukufedokivexisewaposad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/tagibotavuposopotofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0452/5720/files/synaptics_for_windows_10_64_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1730/5240/files/rirofesopelamagifuliki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8400/8862/files/45604841478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/52686688535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/zixufikolalefazavakogip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9170/5500/files/boschveld_farming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0393/5900/files/780307362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4958/2743/files/503601527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71895612735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4726/3131/files/66767921136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0781/1495/files/organic_chemistry_5th_edition_solutions_manual.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F67 2828 bytes
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
font_01_sfnt_off0000a961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA961 5484 bytes
SHA-256: e6a7afd0b449c32369fa2692baef6e7a17d33dea388d668d350602d493648fc8
font_02_sfnt_off0000bbf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF3 10260 bytes
SHA-256: c5d09e3700281579689c76fdc0d762a70bad301ceaaff924bbef304b9d67ed05
font_03_sfnt_off0000defc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFC 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361