Malicious PDF — malware analysis report

Static analysis result for SHA-256 a096099565f3bf86…

MALICIOUS

PDF

46.6 KB Created: 2020-08-02 09:54:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9992b47298510affaf3a6e5e6f4405e4 SHA-1: 14b33775df6f795fb12d127a606b8c95f6465c02 SHA-256: a096099565f3bf860a074fd5d7c2f72ee925fdbe6889a1b0bbef29bc07e07c41
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to known malicious infrastructure. The document body, though heavily obfuscated, contains text related to unit conversion, likely a lure. The PDF also exhibits a PDF_SEO_LINK_FARM heuristic, suggesting it contains numerous external links, many of which point to potentially malicious or unknown domains. The ML classifier also flagged this PDF with high confidence.

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=kg+to+lbs+conversion In PDF document text
    • http://files.kzoorca.org/uploads/1/3/0/8/130874180/48674c.pdfIn PDF document text
    • http://files.kimkirch.com/uploads/1/3/0/7/130775827/welobozutudirol-fulunim.pdfIn PDF document text
    • http://files.paintingwithjustin.com/uploads/1/3/0/7/130740458/bivupufulaxuduk.pdfIn PDF document text
    • http://files.rootsandwingsmidwifery.com/uploads/1/3/0/8/130874490/zaxoxarosi_vakaw_kusukasulelijav.pdfIn PDF document text
    • http://files.allentenbusschen.com/uploads/1/3/2/7/132712005/lujemugezatukizak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9756/3037/files/63937261680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4349/4807/files/64013036893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4478/8634/files/zozulovejitizafoweke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/24407816631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/64262689320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/xoxowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/android_color_xml.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3613/7882/files/29630335043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0304/3230/files/xuzijipexosekagebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/dufupatupiliwadon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/zosizixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5651/9576/files/16643656702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/64949986339.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6914 4712 bytes
SHA-256: 0b7caac64d6f45e010e611dbb9370abecd22aff91aceb202dc9dcdc654e4f328
font_01_sfnt_off00007930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7930 11680 bytes
SHA-256: 21122bd66c4d5e1adbe01ce822df8358d86cbed9b13b01402ff26953cc6fd96d
font_02_sfnt_off00009fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FA1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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