Malicious PDF — malware analysis report

Static analysis result for SHA-256 077955d4e49694cd…

MALICIOUS

PDF

36.1 KB Created: 2020-08-21 16:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 944c24988f47cc04097bc32e4426cc2b SHA-1: a56e3b87c1ece9054c5c389b7b38b444bc01e174 SHA-256: 077955d4e49694cdafa228cc6b99e37030303af3b9c830cc1f0966fb644d3d0a
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious infrastructure, identified as a link farm and redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a video song, combined with the authoring application details. The ML classifier strongly indicates maliciousness, and the presence of multiple PDF links points towards an attempt to drive traffic to malicious sites.

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=mantu+chhuria+desi+pila+video+song In PDF document text
    • http://files.annblackburnpoetry.com/uploads/1/3/0/9/130969699/d4d48.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/1/0444/4710/5191/files/fukak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4587/7922/files/67859220915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0118/2370/files/80366193188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/92988645737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/batman_the_dark_knight_returns_comic_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0980/2146/files/77172219132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3296/1443/files/61268684995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/68665266694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/nixixomiporejezijiwepivex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/hp_2000_notebook_pc_specs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/3664/1189/files/caste_obc_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/73078405393.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 2

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_off00004794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4794 5400 bytes
SHA-256: f435dae85fb870420124e10726a367bad33a9efd8acd3d402ce1a50ae13a2101
font_01_sfnt_off000059f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F1 13160 bytes
SHA-256: 8b2ab42dcf9e14d3434da05aae8af0bfa283c954df32b0a4b8ddf1b7bbb630e9

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