Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5f5d6ceae7d78ab…

MALICIOUS

PDF

40.0 KB Created: 2020-07-27 02:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43ee365b93d714842cf6db7b0fff4321 SHA-1: c1a76761eb5734f92192fde0ba18b90663edb4c9 SHA-256: d5f5d6ceae7d78ab87dc3868e91ccefd98e3c786f3abb8d8e1c492ec9d64eba0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, appears to contain keywords related to the redirector's URL, suggesting a lure. The presence of numerous external links, including one to a known malicious redirector, indicates an attempt to drive traffic to malicious sites.

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=bhajan+ringtone+2018+free In PDF document text
    • http://files.cakesandcups.net/uploads/1/3/0/7/130776204/sutejep.pdfIn PDF document text
    • http://files.observationsandconclusions.com/uploads/1/3/0/7/130776350/netapixutoveso.pdfIn PDF document text
    • http://files.dalhousieparentsdaycare.ca/uploads/1/3/2/7/132712558/9bf6293eabc.pdfIn PDF document text
    • http://files.lakesidepaletteclub.org/uploads/1/3/0/7/130738662/gofenu-puzijajem.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/1/0434/5790/4792/files/51770568918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/kajuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3483/7149/files/redoxiruvewekanoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/17668877890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zutowujovepenatugipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/fujisaguvapotoxufemaneli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/359870716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/segugevitivufisone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/46972283885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7908/9824/files/galuwojomediji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0556/6366/files/rabisofefusep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/53286652168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6191/9396/files/lokazujupamabipawevim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/vujarib.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_off00006054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6054 5252 bytes
SHA-256: 5388fb2e868a747ea9f92442f7f70b69d9bea0beb33f12b48b23d7ee00ca554b
font_01_sfnt_off00007226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7226 9576 bytes
SHA-256: 0b4038bae90e82eef5c8ffec88eb34776a143e118154beacf84b3be163e8b770

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