Malicious PDF — malware analysis report

Static analysis result for SHA-256 a63e8cb7f9b90a44…

MALICIOUS

PDF

49.7 KB Created: 2020-08-28 15:58:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7292b92956f64ac0929b04d180746dd6 SHA-1: 7454c9e73363e8a557fbd8419464e9cb20572d53 SHA-256: a63e8cb7f9b90a44a161f068d4ee3e69946e021d2f2b44d87e4a5e40c44183c0
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/pify?keyword=guia+de+los+movimientos+de+musculaci'. The document body, though partially garbled, also contains this URL and appears to be a lure related to 'Guia de los movimientos de musculaci'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify but some point to potentially malicious domains. The primary intent appears to be redirecting the user to malicious infrastructure.

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.club/pify?keyword=guia+de+los+movimientos+de+musculaci In PDF document text
    • http://puduwu.guamtattooist.com/uploads/1/3/0/7/130775997/xadejitavedir.pdfIn PDF document text
    • http://files.itsavillagefoundation.com/uploads/1/3/1/4/131406751/lovebaju-piwukivug-mowowulawofam.pdfIn PDF document text
    • http://files.creativedatainc.com/uploads/1/3/2/7/132741397/47ab34baff.pdfIn PDF document text
    • http://nusovuza.weatherpaige.com/uploads/1/3/1/1/131163774/tufexi_lekifewukele.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/1/0433/6726/8517/files/69617944952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1676/5087/files/abbyy_transformer_3._0_serial_key_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/vuguxeduwobamalagumurewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1411/0880/files/zetuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7595/2030/files/mayan_dresden_codex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5490/8071/files/72205311852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/72025622123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/gatemupedukirudinimabeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/alimentacion_balanceada_minsa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/zixaxigibaxotinifupademod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1094/8254/files/executive_summary_template_docx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4405/2885/files/20697468892.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00006dda.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6DDA 5612 bytes
SHA-256: d960703b8f87ebcd8f6b627fba7f85e7343142b3600907ca676297965b9c5da6
font_01_sfnt_off00008122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8122 5080 bytes
SHA-256: ad3bc1eed38b3392d4ba5da4a765bf84ff84148391069f7c45f386cc39ac439d
font_02_sfnt_off0000925f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x925F 11436 bytes
SHA-256: 978ffb6a1914f4a1f8eb9ca62b886e6bce7355ca52dc0518978b8ed5f3b09b31