Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bdba8a1dd214566…

MALICIOUS

PDF

40.0 KB Created: 2020-08-21 04:10:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 387b7483a698eac98b1e725b174154be SHA-1: 6fe055dad77f4774bc84594b5ecfbcbb0cff1852 SHA-256: 5bdba8a1dd21456603e480650e07ef5d5e15d0cb595fba37e4086e5e3fb5bd79
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for SEO-based phishing. The document body text and heuristics indicate a lure for 'Vidmate video er uptodown android', suggesting a phishing attempt to trick users into downloading potentially malicious software or visiting scam sites. The presence of numerous PDF links, many pointing to Shopify, further supports the SEO link farm tactic.

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=vidmate+video+er+uptodown+android In PDF document text
    • http://files.romeosinmercersburg.com/uploads/1/3/0/7/130739831/mojorogabadebe_fabeforof_wuvagesuli_vivarafijewekab.pdfIn PDF document text
    • http://files.saintjohnparishmorden.org/uploads/1/3/0/7/130775373/606.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/1/0429/9338/5633/files/98755395536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/7724250862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8171/2287/files/wugaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5016/3609/files/rusted_key_risk_of_rain_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5055/7855/files/vubakuwitixoxoxolaziwixok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4078/3008/files/84681147577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2856/9253/files/bogiwexezivusexulejakiwov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9502/3776/files/ullu_all_series.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/64575325839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2054/files/barycentre_logistique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/2493214875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0718/8898/files/niwuxodimolofubodokolu.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 4

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_off00005286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5286 4896 bytes
SHA-256: a83f93f159a9b7c3790bab55b519723b4574e58311d73fb0e392eef5d5624e8c
font_01_sfnt_off00006322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 9880 bytes
SHA-256: b86a4b7455ba601eb0db36c54daca3b5c6f6e790451d8763b7a9a5885f561e2e
font_02_sfnt_off000084ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84FF 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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