Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48ea337c140096e…

MALICIOUS

PDF

41.6 KB Created: 2020-08-03 02:54:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be73a02b068184042721a635aafe3c5f SHA-1: 9abdfdf845adbb574c679c800cac6f4912d321f1 SHA-256: a48ea337c140096edf4addec9810c369e78e9fe5bce69386b436f9fae0d00495
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with the primary redirector URL being ttraff.com. This indicates a link farm or redirection scheme designed to lead users to potentially malicious content. The ML classifier strongly supports the malicious nature of this PDF. 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=wow+classic+cask+of+merlot In PDF document text
    • http://files.afpinball.com/uploads/1/3/0/7/130775979/5892714.pdfIn PDF document text
    • http://files.astrologervaranasi.com/uploads/1/3/2/6/132682134/nagas_dekexibodevarus.pdfIn PDF document text
    • http://files.preraktrust.org/uploads/1/3/1/8/131871952/95d2fd1ec.pdfIn PDF document text
    • http://files.harrishomeopathy.com/uploads/1/3/1/3/131398091/742490.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/1/0437/8941/8657/files/sukeviwizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8362/8697/files/vizidalagibokero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/11654446407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6925/1487/files/sezadukuvinasemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0736/1703/files/nibuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/nerapusimobezaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/jojowisine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/10_000_days_in_years.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/vunudivixizadedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6756/3429/files/28192218526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/nogenedifomijifunitakol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4700/0983/files/17126722495.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
🗂 Part of campaign: astrologervaranasi.com 4 samples

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_off00006155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6155 5196 bytes
SHA-256: 2ca8428d6502c3a0b48418cbe9a6b000045d0f70b2b2b01bf70146ed3ec96574
font_01_sfnt_off0000730a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730A 11720 bytes
SHA-256: b6af75f3b0e778918826b5457475ceb95a4fec3af7326ce24bdbf2bdfd1b3ba8

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