Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1099abb14ddd55b…

MALICIOUS

PDF

44.8 KB Created: 2020-08-12 11:39:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04546594d0b815b4042a8d54d9b8fa95 SHA-1: 28f5ecc3b50bc1d8a09897856d7befa2841233cc SHA-256: d1099abb14ddd55bfd53cda7638e576ffaf7d37ba9b8130d7594eb57f32c969a
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'ttraff.cc', a known malicious redirector. The document also contains a link farm heuristic, indicating an attempt to distribute malicious content through numerous links. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious redirector suggests the intent is to lead the user to a malicious site, likely for further exploitation or credential harvesting.

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=ace+gate+2020+test+series+pdf In PDF document text
    • http://files.emermarymorris.com/uploads/1/3/1/6/131606025/xojuzuviwuzixo-rezalow-jalanulumapi-juwojikafotane.pdfIn PDF document text
    • http://files.dansemonteregie.com/uploads/1/3/0/8/130874582/8945862.pdfIn PDF document text
    • http://rawutiker.boondocksports.com/uploads/1/3/1/4/131452977/siriwefebu_pepawuvux_bututope.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/1/0435/7623/0047/files/law_on_obligations_and_contracts_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9137/files/85708235851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3167/3504/files/stc_series_7_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3915/1512/files/bawekexexufevakulinunag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/62685058341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/sofugolemuxutiloni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/insatiable_tinkers_construct.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2973/3282/files/46860847590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4258/5241/files/zufegidogeduzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1930/files/juwenerudugix.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00005844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5844 5556 bytes
SHA-256: a39fc4cd3dc94fd48072b151807820321385ce1a5055af3ddd61c7dfac524902
font_01_sfnt_off00006b2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2F 10380 bytes
SHA-256: da5bfca42ae0c68740e9ca79df9e15834a59d245424f6f38de51a0a67826cf92
font_02_sfnt_off00008f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F0B 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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