Malicious PDF — malware analysis report

Static analysis result for SHA-256 af76e22c1091dfcf…

MALICIOUS

PDF

45.6 KB Created: 2020-07-31 06:54:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 909dc01ef685462d0014cfd9e48d55c1 SHA-1: 2825d3c416a22a1e3ee203ae4103c7adb6a73531 SHA-256: af76e22c1091dfcf0df1129599c44ee962901f7f06f032f52bedd218ced67427
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous links designed to appear as legitimate content but actually lead to a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the primary purpose is to redirect users to harmful sites. The PDF_SEO_LINK_FARM heuristic suggests a large number of outbound links, many of which are hosted on benign platforms but likely serve as a camouflage for the malicious redirector. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact nature of the lure beyond the malicious links.

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=printable+inspirational+quotes+for+students+pdf In PDF document text
    • http://files.redondo-events.com/uploads/1/3/1/3/131383649/fbd18614eedcb.pdfIn PDF document text
    • http://files.rockyview.studio/uploads/1/3/2/6/132695546/vewoduxuvisorexaf.pdfIn PDF document text
    • http://files.traditionalspiritoutdoors.com/uploads/1/3/1/4/131437174/ffb435c2f7.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/1/0437/2915/8295/files/paresovekibanulebamexari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/9685722968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3223/9528/files/tuvaduwedakuvumexev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/figavalefufodogiwukak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7519/8373/files/66501861374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1689/5133/files/gewozig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3505/7566/files/kubutevajazugakawipofizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/47215570224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3864/4136/files/87553144210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/pofovewepule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/livitejexeramu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3516/4835/files/dopuzotodixujesunos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1818/1013/files/berixajaxipirenozov.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 4

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_off000075f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F0 5184 bytes
SHA-256: d3f19a43abdd757ae41439bd2f70187a395b32187ef48f5cbc374defb27ac55d
font_01_sfnt_off00008780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8780 9836 bytes
SHA-256: 76f7a1025ca5b4e48925663b5862107028fa70958837884bb0510c306ed8c129

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