Malicious PDF — malware analysis report

Static analysis result for SHA-256 079ca425d52ea127…

MALICIOUS

PDF

32.8 KB Created: 2020-08-22 09:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b78b9d2a6938f273e3ecf2eb230af36 SHA-1: e265459a4d0da05317adbaa0d1f05c78460ad16c SHA-256: 079ca425d52ea12704e8facd4fc4106906aeb9482ba65ede88d8d27277756901
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating they lead to known malicious redirector infrastructure. The primary redirector URL is https://ttraff.com/pify?keyword=exponent+properties+worksheet+kuta. The document body, though heavily obfuscated, contains this URL and other links to potentially benign Shopify domains, suggesting a link farm or phishing lure. The ML classifier also strongly indicated maliciousness.

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=exponent+properties+worksheet+kuta In PDF document text
    • http://xaxuj.dreamupspeakupstandup.com/uploads/1/3/0/9/130969723/6c7b335.pdfIn PDF document text
    • http://nafenok.alqudspub.net/uploads/1/3/0/7/130776407/doxode_difikola_zogelufef.pdfIn PDF document text
    • http://files.raingirlphotos.com/uploads/1/3/1/4/131437930/782cc0.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/1/0431/1806/7876/files/144242199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1638/7733/files/faporezezosifer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/passion_translation_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7335/5424/files/minecraft_1._8_8_maps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7095/files/pile_load_test_report_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/canales_de_comercializacion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/rizikowunema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/16264671118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2282/7165/files/bangla_book_class_11.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 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4623 5056 bytes
SHA-256: faee5553a66d7972a9d4fb1d4cbce3d903c35b4a4736f8aff5c66fdc36b63895
font_01_sfnt_off00005763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5763 9188 bytes
SHA-256: 21ef53292c4515bc803b651dbb3dc01eae63f2b9e23c80aad1ac0fe478c8df2b

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