Malicious PDF — malware analysis report

Static analysis result for SHA-256 150cf515acb343ec…

MALICIOUS

PDF

70.6 KB Created: 2020-08-21 00:57:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dadc5641ded6f170a509042b4d5c1758 SHA-1: 42c2bc019ed2cd20c69cd8abc753a1065829b5bd SHA-256: 150cf515acb343ec93f17a911454a83cb5bc7d9e8592000a4db74ed4fe22338e
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The embedded URL and the document body text point to a specific redirector URL, which is likely used to host or distribute further malicious content. No scripts were extracted, but the PDF structure and linked URLs strongly indicate a phishing or malware distribution lure.

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=episode+guide+blacklist+season+3 In PDF document text
    • http://vofojejam.devinjamesbaldwin.com/uploads/1/3/1/4/131437736/6b2758c.pdfIn PDF document text
    • http://files.mechelsehattrick.be/uploads/1/3/0/9/130969965/bodovano_ranudazagiveda_ritox_vokukakolurog.pdfIn PDF document text
    • http://files.trezevantchurchofchrist.org/uploads/1/3/1/6/131637178/vuwunenoxugemogekona.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/1/0435/8746/9469/files/anamnesis_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/wusomibofomoxog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0173/3542/files/clicker_heroes_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2117/9802/files/rezididanujobajumova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gokibaleginasesomedusuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/adobe_illustrator_cs3_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3416/2853/files/47298639355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/vavevibulixuvazalufuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8872/3616/files/66099064797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/java_ee_6_tutorial_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/6822938887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0867/2423/files/fixode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/26786996797.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A3 5352 bytes
SHA-256: ad509e64de39008a513b0b1ef5d2bc9739523be6b85109add86882dca259904d
font_01_sfnt_off0000d9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E6 11204 bytes
SHA-256: 0c5e252020477eb8e00e2b54022d1d2520adecf743f79d3a47cfb3d1107d4d20
font_02_sfnt_off0000ff11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF11 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f