Malicious PDF — malware analysis report

Static analysis result for SHA-256 1367ed59978426b8…

MALICIOUS

PDF

48.1 KB Created: 2020-08-05 07:38:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de4dc9db44b044a9ec72b80e152ce6a4 SHA-1: 6a5eef6ff42271e188f7c2aa79b6f9372df2597f SHA-256: 1367ed59978426b839d663d32925ad9ae0f5548ff20f489f1841a9baefd72467
234 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to redirectors or are part of a link farm designed to appear as legitimate content. The document body, though heavily obfuscated, contains text related to 'Ssc answer sheet format pdf' and a URL that is also present in the heuristics, suggesting a lure for users seeking such a document. The primary malicious link identified is a redirector that likely leads to a phishing page or malware download. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=ssc+answer+sheet+format+pdf In PDF document text
    • http://files.wordsmithphoto.com/uploads/1/3/1/8/131871704/rusok.pdfIn PDF document text
    • http://files.naturesintent.co/uploads/1/3/0/7/130740530/49873.pdfIn PDF document text
    • http://files.asips.net/uploads/1/3/2/6/132681690/7133402.pdfIn PDF document text
    • http://files.californiaconservationoftrails.org/uploads/1/3/1/4/131438419/29d578d6d79370.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/1/0432/5100/7638/files/lewalusanamebikuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4380/5591/files/zuzixubazotonafinokowup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6237/8152/files/nojigerezosopavilexerupon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/2954132542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/kabivimuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2244/9820/files/60188578009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/kezomozixaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9702/1861/files/matiniren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6068/1111/files/array_to_string_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0976/8604/files/follow_me_tristam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9973/2635/files/68378543924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1207/7206/files/jazixalajidaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/baxijefonuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1898/5370/files/absceso_periapical.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 7

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_off00006f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4E 5296 bytes
SHA-256: b091e0e3f9290d7047a7c1d3438f55e1830a73a4c1e1c80511184a190b48b6ee
font_01_sfnt_off0000811a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x811A 10524 bytes
SHA-256: b1ad170a9926bb3f09d6a346f760b956f2a9b81121ca0a3692dc6eee08acc47c
font_02_sfnt_off0000a4e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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