Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1bca167f432fa4e…

MALICIOUS

PDF

40.8 KB Created: 2020-08-24 07:37:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5794a4a253a1a90f435cd72ef1b32e4b SHA-1: 8d38c94ce3ba6421e0108cc23d6b5b96fb1f26cb SHA-256: f1bca167f432fa4eb0374cd9f75eaffd5526307c7536ed6d2dc55561914e5270
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bootstrap+template+builder'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external PDF links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious URL and several other PDF links, suggesting a lure to external content. The primary intent appears to be redirecting the user to malicious infrastructure.

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=bootstrap+template+builder In PDF document text
    • http://files.protectgladewatershed.com/uploads/1/3/1/4/131452733/611396.pdfIn PDF document text
    • http://lipepawu.avsyum.com/uploads/1/3/1/4/131454106/xalisobeb-lafomito.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/1/0432/3662/2498/files/sunokar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7595/9973/files/el_cine_antonin_artaud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2286/7880/files/vomasapegaxawod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2033/2705/files/bulave_tujhe_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1551/5805/files/radakofazanirorufevif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mafimovudowejiner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/dovisijesowikarew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/92334284347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/how_to_hack_snake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2440/8988/files/12500478962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/5693399790.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6092 5296 bytes
SHA-256: 45bf3289cccab4cd3efb7f7d683354a8400ec62c1f3a566544063f77bd16c025
font_01_sfnt_off00007270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7270 10580 bytes
SHA-256: 4b50b88d5c6b8a303239424e26eca5aa10966b87f06deed1ef9b15a1bb5675e6

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