Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a4d520669213679…

MALICIOUS

PDF

47.0 KB Created: 2020-08-24 15:41:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 337f56553d07e22069b62fc4858ef379 SHA-1: ded2daebb380f662934c7afc3e709af8216a6274 SHA-256: 8a4d52066921367984acf3d5228513f60efc6170da4bd060a4d30535df876fc7
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to Google Sheets and the URL 'https://ttraff.com/pify?keyword=combining+two+cells+in+google+sheets', suggesting a lure. The presence of a large number of external PDF links also indicates a link farm, often used for SEO poisoning or to obscure malicious destinations. No scripts were extracted from this sample.

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.com/pify?keyword=combining+two+cells+in+google+sheets In PDF document text
    • http://files.townofwise.net/uploads/1/3/1/4/131437474/kinogow.pdfIn PDF document text
    • http://files.thealiconklin.com/uploads/1/3/1/0/131070212/zixipoviwexawizirowo.pdfIn PDF document text
    • http://mimoseb.indytimes.us/uploads/1/3/0/7/130738721/8823732.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/1/0428/2325/4179/files/litivudefuwep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/biology_class_10_icse_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5265/2951/files/5945767297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2446/3525/files/caravan_stories_bp_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/21639707291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/javogogukebub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8610/3207/files/75537366704.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 1

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_off00006d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2D 4952 bytes
SHA-256: cff76673a33d8b2a0ece62b0cc6bd8f4d91119305b754d49666e9e7618560201
font_01_sfnt_off00007df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF1 10372 bytes
SHA-256: d9c1fc37b55b530e6bba1aff02c9e592d6e3787ebda02b3861dcee89046a471f
font_02_sfnt_off0000a158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA158 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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