Malicious PDF — malware analysis report

Static analysis result for SHA-256 1630f96b140c8f2f…

MALICIOUS

PDF

38.6 KB Created: 2020-08-16 00:55:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 026ae90a194ea615ded7cb7a85f7222d SHA-1: d94bb90ace4104ae44799e815f6a62b1f470a0f6 SHA-256: 1630f96b140c8f2f356013bc7b0592a7936ee616a2274036caca492df8ec313d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains text fragments and URLs suggesting a lure for 'Vidmate apps'. The presence of a malicious redirector and a link farm indicates an attempt to drive traffic to potentially harmful content, likely a phishing or malware distribution site.

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+apps+chahiye++karna+hai In PDF document text
    • http://files.mrscoryellisawesome.com/uploads/1/3/2/3/132303134/gugenora.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/1/0430/8277/6729/files/95668749642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6133/0598/files/navien_npe_240a_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/kawisisabowokufelowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/jajasevizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/41741054683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8239/files/pimewemok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6828/3298/files/naruto_sadness_and_sorrow_piano_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9415/5169/files/geological_processes.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_off00004dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DFB 2952 bytes
SHA-256: cb9072f881c1fe0ad8900bbcc5a20a23fabb306412f64e001cac76c2a9509f2c
font_01_sfnt_off0000588a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x588A 5412 bytes
SHA-256: f76fa80a88a3d63a5fdc27a6d16a040f9ce97a8c776d74705f5a34a550b220db
font_02_sfnt_off00006ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD0 10212 bytes
SHA-256: cc8bb6da0cea5fd11b45e203d909c0c9de63435b00b3af500b7ba6882e1c3c4f

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