Malicious PDF — malware analysis report

Static analysis result for SHA-256 1914790e97b4cd72…

MALICIOUS

PDF

35.2 KB Created: 2020-08-01 08:50:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc8e39d40b098bde57c11eea2051ee3f SHA-1: 403e5c0aa843595d53e6b9c8dfc2ae0a75a0f4c3 SHA-256: 1914790e97b4cd7275265ffa78fff0c4caaacb30d4a1902c3f342034ac3084e3
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though malformed, contains text related to 'Young thug crime stoppers download', suggesting a lure to entice users to click the malicious link. The ML classifier strongly flagged this PDF as malicious.

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=young+thug+crime+stoppers+download In PDF document text
    • http://files.kiberacreativearts.org/uploads/1/3/1/4/131407887/3f3e8559b3.pdfIn PDF document text
    • http://files.chikuniradiozm.org/uploads/1/3/0/7/130739991/gixinetuwuk-beruwidopax.pdfIn PDF document text
    • http://files.guadalupecardona.com/uploads/1/3/1/4/131406605/3867241.pdfIn PDF document text
    • http://files.katieriffe.com/uploads/1/3/1/4/131452823/mukupijaxudif-lopifi-nakobuxu-dozalowob.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/1/0430/0174/1463/files/kilojerativapasefosup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/64930504258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0905/4619/files/44442169108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/67448094123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/badijevuxenajukitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/59057135623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/nowamosonajabej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6644/1376/files/65925157612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0954/7174/files/tijuvagizub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0528/files/84531099906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/tovudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/nifotomubali.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_off000049ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49CA 5540 bytes
SHA-256: b9936550ba97d116b1cd12874407a7a0d7011c432bfed9b18aab82131aad6a3d
font_01_sfnt_off00005c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8D 10356 bytes
SHA-256: 9b6cd920641e363e8e413ad8e7238dd71c15ef02deeb8b2427883d24e71cce2a

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