Malicious PDF — malware analysis report

Static analysis result for SHA-256 64522fbf0c200f19…

MALICIOUS

PDF

44.0 KB Created: 2020-08-22 01:08:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: beb25a4244842c77752aa30391bbfd88 SHA-1: dcd7366dc4d792a4b38cbc053c360b4832562d40 SHA-256: 64522fbf0c200f19c11441ad5578781e73bfb808fbabd6c1b000aea8a4b97f36
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body and heuristics indicate a lure related to 'Driver booster v1 3', directing users to a redirector URL. This suggests an attempt to lead users to malicious content or phishing pages.

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=driver+booster+v1+3 In PDF document text
    • http://files.mountainthymebb.com/uploads/1/3/2/7/132740951/baligu.pdfIn PDF document text
    • http://files.littleemshop.com/uploads/1/3/1/8/131858044/6578c868737b5c.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/1/0431/0836/8545/files/hoboken_nj_zip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5954/2176/files/44418997787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7207/7475/files/aptitude_questions_and_answers_for_ece.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3063/3881/files/25591461263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/gavumawipanoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7083/2291/files/gumamomovobuxekedabawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/43988142080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/list_of_advertising_agencies_in_mumbai.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 1

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_off0000615f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615F 4532 bytes
SHA-256: 8c53c35ef57e8e2225769ca9ee68122de234d8119f6d7ec9a466f50c3844ecac
font_01_sfnt_off000070ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EC 10856 bytes
SHA-256: cf8cd27667aa180a7c0453a8ad5e86e78d37848ef8a7d2ebacc4873e92214bd7
font_02_sfnt_off00009589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9589 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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