Malicious PDF — malware analysis report

Static analysis result for SHA-256 be1549637f930840…

MALICIOUS

PDF

53.5 KB Created: 2020-08-03 23:58:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6b7289715d6475d1cb5ac31f52b11fd SHA-1: c8ef5a73c433ac572cddef6ee6a5b0ed182f462a SHA-256: be1549637f930840165822e757ff8bfa9ad46a78847368e180ebccd38030974b
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a redirector link to 'ttraff.cc'. The ML classifier also strongly flagged this PDF as malicious. The embedded document body text, though partially corrupted, contains the same redirector URL, indicating a deliberate attempt to lure users to malicious content. The primary intent appears to be redirecting users to potentially harmful websites.

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=qasida+burda+pdf+arabic In PDF document text
    • http://files.photographytoursatnight.com/uploads/1/3/1/4/131437295/5184195.pdfIn PDF document text
    • http://files.dawggonebees.com/uploads/1/3/1/4/131438891/mufobabaka.pdfIn PDF document text
    • http://files.chriskernutt.com/uploads/1/3/0/9/130969192/07ec3665a4b.pdfIn PDF document text
    • http://files.enspirebrandcbd.com/uploads/1/3/1/8/131856956/7975505.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/1/0431/5296/5792/files/37655396657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/41014039948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9024/7829/files/47484030131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovabokuvuxinapuwukiberem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8300/5078/files/vamevizudedaridokibite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5174/files/kokerijizep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7266/files/80632812610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/feserojewopitapetirake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/nuvijoperuvazefopow.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a419.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA419 21572 bytes
SHA-256: 000a3e91a734adc827c80cd0a92bee8b5d15f6b600cd9f4cb65439abdb9c109e
font_00_sfnt_off00006d5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5B 5320 bytes
SHA-256: ea7aa3499b9887b72f243564687207ca984a44e1d3efd11cae598dc5fd296100
font_01_sfnt_off00007f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F75 11252 bytes
SHA-256: 047cd781ce373edcd4fd7f8c3ed7b42713606f079981dd3eb0227469bf50e3cf

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