Malicious PDF — malware analysis report

Static analysis result for SHA-256 11307da4df5d99f4…

MALICIOUS

PDF

40.0 KB Created: 2020-08-02 23:43:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 334ed6148af4b43f4ab760826da1f313 SHA-1: e7f299a3c830c2abfaeb5b1ef867d7c88623188f SHA-256: 11307da4df5d99f43ec2f264c3b0df5935c0f82c73a332fa12b593f2f9c6176c
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=sans+discord+emoji' which is identified as a malicious redirector. The presence of numerous PDF links suggests an attempt to create a link farm or phish users with deceptive 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.cc/pify?keyword=sans+discord+emoji In PDF document text
    • http://files.fumcrutherfordton.org/uploads/1/3/2/6/132695663/kozesekonib_wikuko_xazitodugifilog.pdfIn PDF document text
    • http://files.lowflying.net/uploads/1/3/1/3/131378990/4954720.pdfIn PDF document text
    • http://files.1776totyranny.com/uploads/1/3/1/0/131069886/nedobaxifigogo.pdfIn PDF document text
    • http://files.lllsussex.org.uk/uploads/1/3/0/8/130813782/warekekuzafik_dikoziwagok_pekunekasevil_jebisomaresiwod.pdfIn PDF document text
    • http://files.thebronxlgbtexpo.com/uploads/1/3/1/4/131437680/nefafekurofifi-nivoje-fopamede.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/1/0432/5241/6672/files/bl2_storm_front.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/35526205257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/56135489724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/rekevokarokojirerigozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8789/files/86912177576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4351/1706/files/wotixiwekevukukove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/vazetakufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2091/0746/files/79677848971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1741436775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1512/6692/files/kelufunaxatisalim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9278/5818/files/pufibogigaguzibemok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/pijigar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1792/7837/files/vowedokixin.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 8

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_off00005ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED1 5232 bytes
SHA-256: b2ba245c42c4afb81e7768a33f6bbfc24f95b0a03d014547a8129819ead9dab9
font_01_sfnt_off00007080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7080 10120 bytes
SHA-256: a090ab55424ef26e319ba383272a7852cc9964d1255a70c3a12d2164ae915a99

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