Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2de083ba48fd53…

MALICIOUS

PDF

40.4 KB Created: 2020-08-04 02:44:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4c0cd78d7e8cffe763bd5cd6f6fe72c SHA-1: fb3d1de1729c0ff85f5fa7f4bf1ada0483c7cff8 SHA-256: 7a2de083ba48fd5341ce555f36cf4f06ea37b53dfbd092bb752dff997fdc9d56
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for free downloads, likely leading to a phishing or malware download site. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=medicaliza%25C3%25A7%25C3%25A3o+em+psiquiatria+pdf In PDF document text
    • http://files.bamboozlestraws.org/uploads/1/3/1/4/131408241/bafetogir.pdfIn PDF document text
    • http://files.elvsoftball.org/uploads/1/3/1/1/131163976/raxosutamulen_wovabuseroraxa_vudomobijoj_dabizufo.pdfIn PDF document text
    • http://files.douglasshaunephotography.com/uploads/1/3/2/7/132740480/kezijajavolugel.pdfIn PDF document text
    • http://files.graceholland.net/uploads/1/3/0/7/130739004/sorere_gokoxedukexokur_jezegabir_nijawa.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/1/0434/1818/9980/files/20530743477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5102/2501/files/rewamogitiluregapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5583/1445/files/nekululejodeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4320/4765/files/memorex_cd_lablemaker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/10411496273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9163/9966/files/81463001426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0460/4066/files/aisc_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0756/5214/files/14724224459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5571/8298/files/34759051856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5630/0186/files/warima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1097/files/96263422652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5738/1530/files/55079474893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.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 6

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_off00005988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5988 5980 bytes
SHA-256: b127c092d77cd5ca42d428e6237079519bdd5079187ed3d3050d1f5740d184ae
font_01_sfnt_off00006d03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D03 12232 bytes
SHA-256: 27823c397b8e0f72df4e783263190e6ead08ba39610538589b2a763fc3186c3a

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