Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e4927aca37cfb0a…

MALICIOUS

PDF

51.5 KB Created: 2020-08-20 15:15:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12e082dce9888350e31ffec931a05ac0 SHA-1: 06ce73af779fc777ee741b17d54dc14faf636e39 SHA-256: 9e4927aca37cfb0ad7879c36d0e4247c68209990915154ad9c25f378648f839f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=omlet+arcade+apk+old+version', which is designed to lure users into downloading potentially harmful content. The PDF also features a link farm, indicating a broader effort to distribute malicious files. The ML classifier strongly supports the malicious nature of this PDF.

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=omlet+arcade+apk+old+version In PDF document text
    • http://files.risingravenband.com/uploads/1/3/1/3/131384018/buvab.pdfIn PDF document text
    • http://files.birchfieldpractice.co.uk/uploads/1/3/1/4/131455463/jojulixerigiwag.pdfIn PDF document text
    • http://files.glendamilitano.com/uploads/1/3/0/8/130814208/5e0ebc.pdfIn PDF document text
    • http://vupuv.willucaauto.com/uploads/1/3/0/8/130874247/wagogilusakeru.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/1/0434/6281/9990/files/23333431633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/mupukibilivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/joxob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/ruvebumuketovovizive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7179/0486/files/ejemplo_de_una_acta_constitutiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22537170944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7609/1046/files/angie_thomas_on_the_come_up.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/wotinikexolipogonozide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1013/files/76680825884.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A97 5372 bytes
SHA-256: e4424d7e82cb061f332edea535dc55896190b56d9b8962e952f7e28dabd98280
font_01_sfnt_off00009cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CC8 10612 bytes
SHA-256: 581bb8b05b712e484b0b6241848198b946ea8d36d463f388c5410ea63fa64de8

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