Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ec1a4bdcfa3e606…

MALICIOUS

PDF

57.3 KB Created: 2020-07-30 10:44:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05f53c056f044f74665d029d8d9346c3 SHA-1: a41bcafb7e5334d02826891d3f2390d74adb2ba0 SHA-256: 0ec1a4bdcfa3e60686a98ec2518b8f985e9e807d8234d929a5e6547016de3697
202 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to a redirector service (ttraff.cc), which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'Amines chapter pdf' and includes a download button, indicating a phishing or scam attempt. The presence of many external PDF links further supports a link farm or SEO manipulation tactic to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=amines+chapter+pdf In PDF document text
    • http://files.fionacompton.com/uploads/1/3/1/3/131383864/litarokog_vufiwupotel_zusasulunejemi_zarof.pdfIn PDF document text
    • http://files.dauphinmensclub.com/uploads/1/3/2/6/132695714/1026803.pdfIn PDF document text
    • http://files.tpd-art.com/uploads/1/3/1/3/131382092/71f3603e4a6696.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/1/0437/7932/6110/files/nefatinerenoguxixodupovos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/zogotukezaduwuxazilanevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90262961418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/gazefezumatemiwepudatun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7447/7464/files/59807470043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9513/0266/files/25167630555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/supevuvurigulukowugovali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8515/9843/files/76285296605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/53452146626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5639/7474/files/runisipetuvoxirumitak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9737/5399/files/xowibefujulenonug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5881/3336/files/83164399644.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 7

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_off00009b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B0B 5032 bytes
SHA-256: 7b60f89bfc15ebb9ee12d893813200e8db19fb3cb43bfdcb0a507b7c8940a4fa
font_01_sfnt_off0000abe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABE3 14036 bytes
SHA-256: 95fbf724b4564c986943d3807a93cac32b8d20311148ca79279745eb4c399d46

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