Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b0b0ec2662f5b17…

MALICIOUS

PDF

35.5 KB Created: 2020-08-10 04:58:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d4c4b0a421b9fa41ead556d80dc6fa9d SHA-1: 799502ba812ca4026e9df611cb64725e1b975639 SHA-256: 2b0b0ec2662f5b1793e6aaaf774c8f187daf49e0e93e27502a622b6098fd9620
202 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to known malicious infrastructure at ttraff.cc. The document body also contains text suggesting a 'download' lure, which is consistent with the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content.

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.cc/pify?keyword=questions+simple+past+tense+exercises+pdf In PDF document text
    • http://wonevu.simplycakesmiami.com/uploads/1/3/1/6/131606289/zemudosepi-wunudinamake-dobipef-ganiwiki.pdfIn PDF document text
    • http://files.boobsandgaming.com/uploads/1/3/1/8/131871740/862223.pdfIn PDF document text
    • http://files.brightonbandstandweddings.co.uk/uploads/1/3/2/6/132681164/7a64fa1.pdfIn PDF document text
    • http://files.krethcattle.com/uploads/1/3/1/0/131070137/miwurejajesaj_sevirepuja.pdfIn PDF document text
    • http://files.carolavedonsavage.com/uploads/1/3/0/7/130740217/dedigurat-kosemaguvijisa-nexomerutugupek.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/1/0451/1108/3160/files/gungeon_yellow_chamber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2331/8683/files/politik_identitas_dan_multikulturalisme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3670/3900/files/2797251462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3041/files/58154419436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9742/4026/files/nekegunafunutonepuvutora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/takuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0253/4822/files/persuasive_writing_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/52438546462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/32452510297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0414/8381/files/26919651689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/tunavawifalaxojifunudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4375/3877/files/cetosis_diabetica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2815/9396/files/bwv_1052_piano.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C38 5432 bytes
SHA-256: bb4ad627a498b675dd395f4854abea8c861fb3d9563559cc8c3ffc34ef300391
font_01_sfnt_off00005e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E97 9948 bytes
SHA-256: b6080b589d31eff898827c6b2c333acb229e2e1eb008cb44a1ef494679c4b88d