Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a1090f1b1f78b2…

MALICIOUS

PDF

35.5 KB Created: 2020-08-01 05:06:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fb7a39d5e247408fc592f33cf4b2725 SHA-1: 0465b31637e318d0280b61143e47b5831459f6eb SHA-256: a3a1090f1b1f78b2ce9b86f876e8b0bb588c6ddf4cb1d0d7f3867307d9a31ff9
234 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates this is a primary threat. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document might be a precursor to a password-protected archive, which is a common tactic to bypass gateway security. The document body itself is heavily obfuscated and contains the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=cradle+of+persia In PDF document text
    • http://files.swainsborojaycees.com/uploads/1/3/0/8/130873945/nerizesonamaxepavit.pdfIn PDF document text
    • http://files.rockysplaceinc.com/uploads/1/3/0/7/130775435/2200201.pdfIn PDF document text
    • http://files.slikslymusic.com/uploads/1/3/0/9/130969459/6920549.pdfIn PDF document text
    • http://files.drawingonmusic.com/uploads/1/3/1/0/131070044/mupesibudunug-womexezaluzo.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/1/0428/9835/8432/files/banefidofekadozimodomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8790/4422/files/dawiloruxutofisorolobojos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5316/2394/files/tedigotorekona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/mujuxafesuliwuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0660/5987/files/texepozodezawof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/bovunekovizaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4939/files/97216324016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2670/0696/files/41905957528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2725/0850/files/kovilizoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/20509547643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/volixijudinepekegufegesif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/gatotew.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_off00004df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF2 4940 bytes
SHA-256: 1ec7c6c4d9c3aaa038d0a59920e65d74e00ec3c3394775f7f8cd0c463b3551d6
font_01_sfnt_off00005ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC9 10168 bytes
SHA-256: e4b5024482eac5df8db41f53d9e08994e51918bfc38d84139cf7305cafe2e789

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