Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5c5eebfba265f5f…

MALICIOUS

PDF

50.3 KB Created: 2020-08-02 15:30:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0f67096b83c446cb5a205eb2e867cff7 SHA-1: d4dfe7b6693ea7103b87366a9da522783a5d2ed4 SHA-256: a5c5eebfba265f5fdf61a71cb8c7527828f8acab50892ab40ec6f9106198034d
214 Risk Score

Malware Insights

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

The PDF contains a link to a redirector hosted on ttraff.com, which is flagged as malicious. The document body and heuristics indicate a lure related to a product recall, likely to trick users into visiting the malicious site. The PDF also contains a large number of external links, many pointing to Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=honeywell+water+heater+gas+control+valve+recall In PDF document text
    • http://files.globalqualityenglish.org/uploads/1/3/0/7/130739524/jaxodajerizag_babum_bukojusaf_zomej.pdfIn PDF document text
    • http://files.bentrim.info/uploads/1/3/1/3/131383318/9125154.pdfIn PDF document text
    • http://files.princetonfamilywellness.com/uploads/1/3/2/7/132740362/zixokifafiwivojij.pdfIn PDF document text
    • http://files.stopwrightscrossing.org/uploads/1/3/1/8/131872238/wixoj.pdfIn PDF document text
    • http://files.heathenmist.com/uploads/1/3/0/7/130775384/pinama.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/1/0437/7811/3690/files/69939561196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/zojisibidud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/49567822753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/nizisewumisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/84358318648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7645/9422/files/9215540290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6216/files/4242597344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/kevomom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0750/0711/files/ruwed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/rexilokubafiwoforebiwefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4439/7471/files/zurutitujudaxixufewide.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A6 5276 bytes
SHA-256: df611d96480a0a3a916341675979d6f69004f5a07ca8889431943da9cd9e2d0f
font_01_sfnt_off000083b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B3 10344 bytes
SHA-256: ef0c78b4e0d2d50ff1c6b1cea32e6bd2c9749477dac5d26955296aab386fecec
font_02_sfnt_off0000a71c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA71C 16060 bytes
SHA-256: 2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90