Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1c19ef307a7d6a0…

MALICIOUS

PDF

43.9 KB Created: 2020-08-22 05:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74635dbf8e7efc1d17a79753fdecc0bd SHA-1: c9262de6f0bb9c525b27e17b3324d117daa7f223 SHA-256: a1c19ef307a7d6a0709ca8773334f3c7d76cd0505fd3831c5e1ee292583fa6bb
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 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, with the primary one leading to a Shopify domain. The presence of a malicious redirector suggests an attempt to lead the user to a malicious site, likely for phishing or malware delivery.

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=asking+for+and+giving+permission+worksheets In PDF document text
    • http://files.lifeeclectic.net/uploads/1/3/2/8/132815008/takogimepe-fejojemisovamom.pdfIn PDF document text
    • http://lokubo.susanmerrillsquier.com/uploads/1/3/1/1/131163664/bazosuj_tesabapune_jorepusojikagom_sukilebebal.pdfIn PDF document text
    • http://files.lightonplaza.com/uploads/1/3/0/7/130775747/5855531.pdfIn PDF document text
    • http://fijowewu.diggncuisine.com/uploads/1/3/0/9/130969408/3680229.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/1/0430/5145/0519/files/certified_internal_auditor_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/vijegoponoxovuvasowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/pazadazonetegokagijuwuvek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/32925874131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/26495691464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1131/5611/files/carruagem_de_fogo_partitura_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/66248964435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6868/6497/files/rufokonuzogusafawonugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0997/4169/files/xepebilonuzuzuxolasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/21590485970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8582/4164/files/kabexatewilatijib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8336/5528/files/bivuda.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_off00006bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD6 5628 bytes
SHA-256: 252756534ce72a18b3d016e93be247894426f2d6f36fb1cb9e1482f0c3781ece
font_01_sfnt_off00007ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE8 10404 bytes
SHA-256: e4f88523603c49117364068544b82d125435b2801875272f74ff26601fca170d

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