Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8f1e4a8758c3721…

MALICIOUS

PDF

43.2 KB Created: 2020-08-23 02:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b69c5a2bd67000f7b2ef59bd9ddd6e9 SHA-1: c0cb2d5a8a7efdbacfa34d981f71c9cc73ad07ff SHA-256: c8f1e4a8758c37212bd337345987449728204a597acc40811a0011681667ada7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'batman and joker hd wallpapers for android' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further indicates malicious intent.

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=batman+and+joker+hd+wallpapers+for+android In PDF document text
    • http://files.ronsgameroom.com/uploads/1/3/1/4/131452904/2142185.pdfIn PDF document text
    • http://files.customcrushfitness.com/uploads/1/3/1/4/131412235/dodeziwaxenolux.pdfIn PDF document text
    • http://files.recognizethesacrifice.org/uploads/1/3/1/4/131438891/datasefenekizak.pdfIn PDF document text
    • http://kilisubes.givete.org/uploads/1/3/1/6/131606490/godexanazeril.pdfIn PDF document text
    • http://files.sm-art.com.au/uploads/1/3/0/7/130738771/xilodugufinugo.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/1/0429/9502/4023/files/exercice_corrig_algorithme_matrice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/collocation_dictionary_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0802/2938/files/argala_stotram_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0436/9816/files/likotelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4121/6919/files/remasixaxurulinenek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/bezikowixujopiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9959313526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1684/6488/files/vazadud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/panasonic_switches_catalogue.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000692c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692C 5564 bytes
SHA-256: 3d24eb0305a7658985f8fb9092ae31eadcca108df4a2ff779320b8f8bd57ef6c
font_01_sfnt_off00007c01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C01 10528 bytes
SHA-256: 3fc7c247738ea7eb10fa9f0d76f383a3ef97b73f021521324be3214ac2f37440

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