Malicious PDF — malware analysis report

Static analysis result for SHA-256 63173419060b1be1…

MALICIOUS

PDF

43.1 KB Created: 2020-08-17 18:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91d7e1e061d24fc3eb86099d3fa34d2b SHA-1: 445373e74fa1b5fa5941dad88a372e22fc625499 SHA-256: 63173419060b1be11d3f5e6262cf04d5a03d5e4bf7fe83d8c256e61b3249a9f6
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious redirector, disguised with keywords like '8 ball pool apk long line'. This suggests a phishing or scam attempt to trick users into downloading malware or visiting malicious sites. 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.cc/pify?keyword=8+ball+pool+apk+long+line In PDF document text
    • http://files.immigrationbenchmarking.org/uploads/1/3/1/4/131407299/kamag.pdfIn PDF document text
    • http://wibego.rubinvisalaw.com/uploads/1/3/0/7/130738850/menorolotireg.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/1/0433/9482/6405/files/19989183737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0842/5116/files/folopabolono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9597/3276/files/cambridge_english_vocabulary_games_and_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1035/8439/files/process_of_glycolysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5255/files/kedeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/26767434151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3960/9252/files/de_gennes_capillarity_and_wetting_phenomena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6417/2445/files/89004456414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/79242703723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6057/5912/files/begakosavawepogekazev.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 1

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_off00005ed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED0 4724 bytes
SHA-256: 3f4ffa1ca1e1a29b719a43a579b934e847a3ccdf309b30433501cc0ce0ef6ff7
font_01_sfnt_off00006ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED6 10156 bytes
SHA-256: 6426e56a8e15064444a9c04060f8bb0cc1390f354d11c34f6a09ec5a11ed95e8
font_02_sfnt_off000091a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A0 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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