Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bbe64f477b000ab…

MALICIOUS

PDF

49.2 KB Created: 2020-08-21 14:53:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 005f4f546ffe5692b1789af9d7efec4a SHA-1: e4c79ff3bacfdb1e3177ad7375f4d7809d474efa SHA-256: 0bbe64f477b000ab1907559d2c653877e129441d715e0d13f1c65187755270e1
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'ctet form last date december 2019' and the malicious URL, suggesting a phishing lure. The presence of multiple PDF links and a malicious redirector indicates an attempt to drive users to malicious content, likely for credential harvesting 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=ctet+form+last+date+december+2019 In PDF document text
    • http://zozev.huffhillsskipatrol.org/uploads/1/3/1/3/131398244/6856306.pdfIn PDF document text
    • http://files.hairandmakeupbylu.com/uploads/1/3/2/6/132695445/7522085.pdfIn PDF document text
    • http://files.biocoreintegration.com/uploads/1/3/1/3/131380591/4215050.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/1/0432/6657/2443/files/calderas_acuotubulares_y_pirotubulares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2391/files/49160535626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8492/3555/files/o_bestiario_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/73596807230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4590/2746/files/87157184803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4914/0902/files/bubijibifasamokasipef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9607/1578/files/74197298004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29331550606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2181/files/small_story_books_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7053/5318/files/16068714227.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_off000067ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AE 5696 bytes
SHA-256: cfb78f982bf3702d3da0916e94ae64078a654bc052b253f18942259eacfde423
font_01_sfnt_off00007af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF2 10624 bytes
SHA-256: 9a9ce7d08bec4963cc2783a66d4cf355974c6bc04d8ff8431b7567b0c73d8ace
font_02_sfnt_off00009f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F42 17200 bytes
SHA-256: 2ac0a33d86fe2f69241fdd33b8be2c239c957bc82aa5c2e556ef5ecfc1a5fbba

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