Malicious PDF — malware analysis report

Static analysis result for SHA-256 03acf784bcd61775…

MALICIOUS

PDF

40.1 KB Created: 2020-08-14 02:51:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41702a8efa94b1c8029d30cdb0627021 SHA-1: d06e8808e044ee0d7ad3108c16d43dcad71abcec SHA-256: 03acf784bcd61775504930253119c529970ff7ca96960404806f30777b5dcc98
162 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service identified as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=airplanes+bob++free', which is also flagged as a malicious redirector. This suggests the document is designed to lead users to malicious content, likely for phishing or malware distribution.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.ru/pify?keyword=airplanes+bob++free In PDF document text
    • http://files.terriemckee.net/uploads/1/3/2/8/132815854/rukibej.pdfIn PDF document text
    • http://luzaxifo.prietospoweralley.com/uploads/1/3/0/8/130874012/3184775.pdfIn PDF document text
    • http://files.deepaklalsaini.com/uploads/1/3/1/4/131437878/zisoguziwoba.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/1/0433/3902/2494/files/asientos_contables_ejercicios_resueltos_peru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30611133668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4373/3154/files/argent_crusade_rep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8191/4781/files/algebra_2_practice_test_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1978/7688/files/folding_adirondack_chair_plans_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0283/0745/files/lagu_amelia_terbaru_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/twisted_treeline_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/vufikufasinegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0454/9544/files/happy_birthday_cake_photos_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8095/6569/files/rodubobewamojikotazuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/lamisebaxamuxexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7732/7265/files/accuweather_newport_news_va.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 4

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_off0000602e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602E 5024 bytes
SHA-256: 4aaa21a06fe2bddd4f87c90a866197a63a9ac7d402117abbdbc8643e35d7fb25
font_01_sfnt_off0000713f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x713F 10184 bytes
SHA-256: 6334994b5b2d09c87fa80af17891814cf3717ab8d203ae258a80a75c0dddbede

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