Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad5b3f8836aed098…

MALICIOUS

PDF

113.3 KB Created: 2020-08-12 23:31:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d212d4ac77b4fd5a19dea04215de404 SHA-1: c9bd687e828abecdf0b28ef581f945f701a0caff SHA-256: ad5b3f8836aed0986a88cc8b5022052a52876f2693c2ca3a5a46cd5d930dfef9
194 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, referencing a lottery or prize and requiring courier delivery. It also embeds a link to a known malicious redirector, https://ttraff.cc/pify?keyword=blast+furnace+slag+concrete+pdf, which likely leads to further malicious content. The document body, though heavily obfuscated, contains the same redirector URL.

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=blast+furnace+slag+concrete+pdf In PDF document text
    • http://files.boardgameseverybodyshould.com/uploads/1/3/1/4/131437657/2190098.pdfIn PDF document text
    • http://files.angelagoodetaylor.com/uploads/1/3/1/4/131407194/degulupupamage-pomevobonadobeg-betulas-zeruxif.pdfIn PDF document text
    • http://temuz.nyacrossphotography.net/uploads/1/3/2/7/132712615/xafidis.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/1/0430/5692/2777/files/88459883083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1565/0980/files/sugobotanenikeresetefani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8822/files/18296727382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0616/3104/files/tigenuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/58391112398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6775/8997/files/cell_tissue_culture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8369/4247/files/copy_and_paste_sparkles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/types_of_blood_cancer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/44581815359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/67780876970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0421/4942/files/55087510495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/fundamentals_of_electrical_engineering_bobrow.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 7

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_off000180ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x180EA 5372 bytes
SHA-256: 2e1d782885e99b8aaa81fc8dab1dfe4f5c72a09b71ce36a77d78f2f18ca6e19e
font_01_sfnt_off00019333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19333 10652 bytes
SHA-256: fef6d15a75818c5d7cc94d252aabee52b4ad3097c87a0f97a0b72db02b390500

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