Malicious PDF — malware analysis report

Static analysis result for SHA-256 580591343fbccf05…

MALICIOUS

PDF

39.9 KB Created: 2020-08-12 01:28:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ab38f01e922d767021a7e6ec1591ed4 SHA-1: c96dbc7ed3cdd8eadf71459fc016933c8eb37f80 SHA-256: 580591343fbccf0578fb1901217578fc181053fcff145f14af2c7f981752f58f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF contains numerous embedded links, identified as a link farm, with one critical heuristic flagging a redirector to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'modals of future possibility exercises pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The primary malicious URL is https://ttraff.ru/pify?keyword=modals+of+future+possibility+exercises+pdf, which is likely used to redirect users to further malicious content.

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.ru/pify?keyword=modals+of+future+possibility+exercises+pdf In PDF document text
    • http://files.uicbcq.org/uploads/1/3/1/4/131454114/6177993.pdfIn PDF document text
    • http://verod.canal-art-by-julie.co.uk/uploads/1/3/2/6/132695578/gelulugedib.pdfIn PDF document text
    • http://sulupin.campaignp31.com/uploads/1/3/2/6/132681579/03133d4f4263b.pdfIn PDF document text
    • http://kisalam.laughingkookaburracottage.com/uploads/1/3/0/8/130814328/vezojoj.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/1/0438/5089/1424/files/69724575171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4327/3369/files/bank_secrecy_act_training.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2732/4310/files/49609160107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6028/0992/files/the_unofficial_guide_to_real_estate_investing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2844/6358/files/bijefakasutusokajopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7417/5644/files/zarorafelin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/fukebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2552/3103/files/jilutonorumodojejidijef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8956/7650/files/98815242883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8747/9455/files/25033025497.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 6

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_off00005c4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4A 5464 bytes
SHA-256: e3263c2e1aef0b358f050c071b35bb0bcb8023768e1a55a3202d4273d3259390
font_01_sfnt_off00006f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F00 10588 bytes
SHA-256: a23e824fa3042bad4585346ebf14944babf6346038b426fba36464837964c8b0

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