Malicious PDF — malware analysis report

Static analysis result for SHA-256 649807a17cf05841…

MALICIOUS

PDF

43.5 KB Created: 2020-08-19 16:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f69f3471981d5b24d83114718d3f7c4 SHA-1: 25d39464d535414a861c97bb06aa7a2191110c93 SHA-256: 649807a17cf05841ade7c67d36fea4fc183ebc7ade4fd9c17d7af24ca060c361
194 Risk Score

Malware Insights

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

This PDF file contains multiple links to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a song, which redirects to a malicious domain. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=bhangra+pa+song++mr+jatt In PDF document text
    • http://files.copybyvan.com/uploads/1/3/1/4/131406717/8adc7a29e24eb1b.pdfIn PDF document text
    • http://bijuzib.theschoolofrevival.org/uploads/1/3/1/3/131382134/zofizox-gefanaroxafuxik.pdfIn PDF document text
    • http://files.losamigoshosteltenerife.com/uploads/1/3/0/9/130969580/robadipapabarama.pdfIn PDF document text
    • http://files.merebrookllc.com/uploads/1/3/1/3/131383251/ruvatoke_sokirijibe_roxiwogam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/visipabojozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/39617609193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2372/0602/files/blended_learning_thesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4953/9989/files/eviction_notice_template_scotland.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6478/6086/files/41185207323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1657/5383/files/enuresis_nhs_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/85726779543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1283/8808/files/4662889297.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5607 5328 bytes
SHA-256: d399e7c8cbf21df923949bb575f46c9aae286d7bb40b0a4179b88487cf42c9f7
font_01_sfnt_off000067f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F7 2616 bytes
SHA-256: 65298062ca8fc50190b561236fb9b737fd76694de98eadb910a170aa790496ff
font_02_sfnt_off00007321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7321 14636 bytes
SHA-256: d4fa18ba7c77752ee66a9510c894ca81ff1fbeff9c3775a3300256a5a3350b33

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