Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c0158b3a9b9fe84…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 11:18:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1606a9d6409c8b989103ba91f012d5ea SHA-1: d8df4d7584fa21ca8e7284506ba11c2861f6ea29 SHA-256: 2c0158b3a9b9fe8465dae2d57b54c3dfd363ae367e5751a94791ef2e6576c0b5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=bioshock+ps4+dlc+trophy+guide In PDF document text
    • http://mumasek.decadesboutique.com/uploads/1/3/1/4/131411688/8711bc355592c24.pdfIn PDF document text
    • http://files.lavalstgermain.com/uploads/1/3/0/7/130775866/5976637.pdfIn PDF document text
    • http://fizigifek.holyokemapartyrentals.com/uploads/1/3/2/6/132682137/nimejatofigomir.pdfIn PDF document text
    • http://zagub.bartendingbydennisinc.com/uploads/1/3/1/3/131379510/7754235.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6695/files/10116278170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7320/7446/files/matrix_inverse_2x2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2603/7411/files/education_bd_result_marksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7300/2902/files/entropia_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/3274/7672/files/81006714096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/31136867498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/hiperplasia_benigna_de_prostata_sintomas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0225/5770/files/geligikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6953/9239/files/69554112536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/novinazif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0104/files/albacea_definicion.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6803 5204 bytes
SHA-256: 8bf8b597904112b0dfa2c21697431a490c531932d938cc8c8e9d222c706f8d91
font_01_sfnt_off000079de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79DE 9860 bytes
SHA-256: 00666c26049af0bf8b7d6cf95203bc41f2d9800d06a889e4fccf492c7af24dcb
font_02_sfnt_off00009bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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