Malicious PDF — malware analysis report

Static analysis result for SHA-256 c767ab9b32ce3d98…

MALICIOUS

PDF

44.4 KB Created: 2020-08-14 20:15:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a04c133968dd1aeaf60195008c3cf720 SHA-1: 2bf0ee6ecd5ea310538024f0f23c31570184fdc6 SHA-256: c767ab9b32ce3d98b68cebdab6b1fbb118ab5e558bbf39c07909601439422dfb
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one hosted on Shopify. The document body, though partially corrupted, contains the malicious URL and references to 'Vimeo er telegram bot', suggesting a social engineering lure. The ML classifier also strongly indicated maliciousness.

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=vimeo+er+telegram+bot In PDF document text
    • http://files.boundlessyogastudio.com/uploads/1/3/1/3/131383651/dipisegafoxi.pdfIn PDF document text
    • http://files.thetlacademy.shop/uploads/1/3/1/3/131384789/dupive-madelubupazape-dezarekinoza.pdfIn PDF document text
    • http://files.music.shenfieldlearning.com/uploads/1/3/1/6/131636843/tufow.pdfIn PDF document text
    • http://maxez.gilacheer.com/uploads/1/3/2/6/132680955/dexalonarunod_dirumiwe_lazek.pdfIn PDF document text
    • http://files.nickpateras.org/uploads/1/3/2/7/132710655/d914f150ae.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0429/2558/8639/files/25830084972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0763/9711/files/tekowepiloxusazisosiguzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/22616881566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/44375931973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/19270236937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8956/6623/files/boards_and_beyond_checklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5061/files/jupulemilafifep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7215/1959/files/gapivajidufoxudexawebire.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000606e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606E 1708 bytes
SHA-256: 278cd1fe4e2de6775b68dcc5cf7eed82db371a5a037b33d11a2f0f33487a4022
font_01_sfnt_off000068f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F9 4932 bytes
SHA-256: 021cb28f1d735e371c037591816809a86c1ee4bc17e7d0687ee0ff685322cd4b
font_02_sfnt_off000079ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AE 13216 bytes
SHA-256: c3909f4e94d0a0432b00df8fadd790536e3cf88a8fca1e388ca6dc8b89b1c030

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