Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0aa274cd05ab160…

MALICIOUS

PDF

41.1 KB Created: 2020-08-25 08:26:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a00d0eedea6d4d53a2a31e9cf69a38b3 SHA-1: 8d730f8a8ce443a261d6f0cf9fecdf237e72b982 SHA-256: d0aa274cd05ab160362e765cba3385375411ddd1d56d7ff48f439365745e6cbd
202 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 a PDF link farm heuristic, with numerous links to external PDFs, some hosted on Shopify. The document body, though partially corrupted, contains the same URL as the redirector, suggesting a lure. The presence of a 'download button' heuristic further supports the attack pattern of enticing users to click malicious links.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=chalkboard+handwriting+font+free In PDF document text
    • http://files.hephaestus6390.com/uploads/1/3/1/4/131407281/redeloregazemewos.pdfIn PDF document text
    • http://files.lifesafetysolution.com/uploads/1/3/0/7/130776015/d87d02fab11dae.pdfIn PDF document text
    • http://files.harperfolsom.com/uploads/1/3/1/3/131382092/2462424.pdfIn PDF document text
    • http://dareb.refugefriends.org/uploads/1/3/0/7/130739196/fosemokirovarez_gowewi_niwovexu_fisurofu.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/1/0438/3608/0288/files/70113527093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1151/2232/files/mevuxikufekasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0511/4528/files/soundhound_music_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/todukegutumuvitibemiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3777/8071/files/70719789189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/labotid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9821/7378/files/45352109921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/geometria_descriptiva_arquitectura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9674/files/37889194440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9874/3719/files/65393661532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6572/1503/files/82181647517.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E8 5192 bytes
SHA-256: e623546fcc7584a3f3df7856e6571bbeb82fbfde7292194406dcdf18e0927b34
font_01_sfnt_off0000749d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x749D 10172 bytes
SHA-256: 94e895d567cda928ef00b3926ff55b249108448ddf845f5b8563e27a9579b971

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