Malicious PDF — malware analysis report

Static analysis result for SHA-256 3993a28a727d10ab…

MALICIOUS

PDF

114.1 KB Created: 2020-08-02 16:30:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cb74adeec2df11f04888336347414a52 SHA-1: d37fc298045c1438e867b69bd71280f55d584ad2 SHA-256: 3993a28a727d10ab83558308d3cfaa45f38cace1ff1c0ca0b856db0ac68a6b32
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure related to a Lexus IS300 manual, which is a common tactic for advance-fee scams. It includes a link to a known malicious redirector, ttraff.com, which likely leads to further malicious content or phishing pages. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm used for SEO manipulation to distribute the malicious lure.

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=lexus+is300+manual In PDF document text
    • http://files.wasagabeachcorvetteclub.com/uploads/1/3/1/6/131606257/todefi.pdfIn PDF document text
    • http://files.8870adventures.com/uploads/1/3/1/4/131407705/tuxixogowok_nixiditujojeled_wirakagoboxa.pdfIn PDF document text
    • http://files.ellenalt.com/uploads/1/3/2/8/132814136/kukazaduxifafe.pdfIn PDF document text
    • http://files.zbfc.org/uploads/1/3/0/8/130874201/xewegakazubiroj.pdfIn PDF document text
    • http://files.anupamxp.com/uploads/1/3/1/3/131398253/vitekax.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/1/0430/4742/0057/files/zewewixupowemixiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9265/6799/files/34376546297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/dodos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/zaidu_vokrug_rta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/jemifax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7932/7141/files/cadillac_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/rapelurojokavujizabilulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3366/4420/files/segola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wajumibuxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/65334546737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/5058296796.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10268 30372 bytes
SHA-256: 590a68f884254ed549b471878393bb8bdddc77c05b20c3336daf566908c39cec
font_01_sfnt_off000161bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161BB 5048 bytes
SHA-256: eb93386bcfb1b074f8df39bb13e0683615cdfcc2f14256410b651a3fbbac4f99
font_02_sfnt_off000172d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x172D9 16688 bytes
SHA-256: f93b03ffee70c5c7412ffa953422bda2f33eea83933258bdc4ed6e78e0ff8e8a
font_03_sfnt_off0001a5a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A5A5 16060 bytes
SHA-256: 713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74