Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94557d3b90c3537…

MALICIOUS

PDF

51.5 KB Created: 2020-08-14 01:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc7f4deb2a286a27c8281b6294aaf1c5 SHA-1: 5bdee23c1816137aaaf68795f73cb7fd8a1617a2 SHA-256: e94557d3b90c3537264b9b7f936371b986ae2d251f2e56d6a55a42e027d61bcb
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bahubali 1 tamil songs starmusiq' and the URL 'https://ttraff.ru/pify?keyword=bahubali+1+tamil+songs++starmusiq', suggesting a lure to a malicious site. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to distribute malicious content.

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.ru/pify?keyword=bahubali+1+tamil+songs++starmusiq In PDF document text
    • http://tigakege.humancapitalrealisation.com/uploads/1/3/2/6/132681670/a17b92.pdfIn PDF document text
    • http://sitaxevi.chenguatmit.com/uploads/1/3/0/7/130775350/2647423.pdfIn PDF document text
    • http://files.whybeinghappymatters.com/uploads/1/3/1/6/131637240/254dfec.pdfIn PDF document text
    • http://files.osdtda.net/uploads/1/3/0/8/130814124/wiwerosogusod.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/1/0431/7098/8196/files/90016329166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/how_to_download_email_as.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/88646581039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5393/2966/files/9279351317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8782/0968/files/42817720865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1737/1801/files/buvasilujow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9570/3204/files/pesofisexusin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6564/files/returu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3256/4132/files/89234354108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9688/3868/files/xidinekatavefowiguvagegu.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: freshstockjapan.com 6 samples

Related samples 3

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_off000085ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CA 5468 bytes
SHA-256: eb549a063dc3ca2a67584a4b249cade0de4689aa02fbd41feafe42876777677a
font_01_sfnt_off0000983f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x983F 13032 bytes
SHA-256: 046850d61f8fd51ec909dbf5a2583e3cd7d11d50684e1a936f385cdc4186590b

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