Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c2f3e0f57b174ab…

MALICIOUS

PDF

41.7 KB Created: 2020-08-27 14:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c60f59537e01dcbb26385e651d8872e SHA-1: e0d49c603042071b07b35a3b92726d96f3502302 SHA-256: 3c2f3e0f57b174abf7baad3f28bf9d7dab67b1bc73a2f5f1b8084d0f4610118b
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The document body, though partially corrupted, contains text suggesting it is a 'guide' and includes the malicious URL. The PDF_SEO_LINK_FARM heuristic further suggests a large number of external links, many hosted on Shopify, which are likely part of a link farm to obscure the malicious redirector. The primary malicious IOC is the redirector URL.

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.cc/pify?keyword=musa+awakening+quest+guide In PDF document text
    • http://files.goldenpawsdogs.com/uploads/1/3/0/7/130739892/7331533.pdfIn PDF document text
    • http://labunodum.roughsawnlumber.com/uploads/1/3/1/4/131482995/bujubifusekorukamofo.pdfIn PDF document text
    • http://xenivizux.nativeturquoisetreasures.net/uploads/1/3/2/6/132683403/lamivo-poruxibak.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/1/0429/5832/3865/files/98783649828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9302/files/ruzixusonexenajevesovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2088/files/android_navigation_with_bottomnavigationview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/xokuvuvenexepevejuwava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/74325534036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/jatajuruno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7389/4555/files/suxefapevegesurid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2380/9187/files/rasomogigenorajutivud.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6925 5152 bytes
SHA-256: 3793eca896d7b36b0500c4ea6804693a33c4867777c8ff395f6d3c425983783d
font_01_sfnt_off00007ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD0 9352 bytes
SHA-256: a667a743fb6fd60642f7b9579d8108b10781cd1dd777d090a1498771c00acf34

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