Malicious PDF — malware analysis report

Static analysis result for SHA-256 c57c6a97aa34f6e0…

MALICIOUS

PDF

40.4 KB Created: 2020-07-24 10:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c48e6d2219f33305ecfae1166b65a63f SHA-1: f3b2d3bda921c9653b83fed8c68651c7aeb3980f SHA-256: c57c6a97aa34f6e0295894bf60c1652262d232a17c2ad9b4860f294eaea25ddb
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a movie download. The link points to 'ttraff.ru', which is known for malicious redirection. The document body, though heavily obfuscated, contains text related to a movie title, reinforcing the lure. The ML classifier also strongly indicated maliciousness.

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=challenge+bengali+full+movie+hd+free In PDF document text
    • http://files.owyheeoffroadchallenge.com/uploads/1/3/2/7/132740659/8414697.pdfIn PDF document text
    • http://files.caribbeancare.org/uploads/1/3/2/6/132681885/zezofanujuk.pdfIn PDF document text
    • http://files.thevigilgroup.org.uk/uploads/1/3/0/7/130776215/bekujeradunenonodus.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/1/0431/1590/5185/files/fulefepovevokomipidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/bogimujanaxadadiwuvomive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9757/0980/files/xinugumijobameges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6876/6873/files/lololavoromowobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0805/6740/files/kadupemawevolukozegejaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/295303349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/novorubafiwani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1722/3840/files/78672469915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/97845933360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/wanudusuxezonukejuduf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4322/5751/files/57722293675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wajomuxufukurojudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5098/2805/files/bamavijule.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000616e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616E 5168 bytes
SHA-256: 70e09ac1e270f44642712f30a304b1fc1dd4c342e7c3ec1786cd3f29d4bb14cb
font_01_sfnt_off000072d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D1 9816 bytes
SHA-256: 42f7eed0e3219f3a7c9d3667f71bfdeb834864f3b1ef73c83668d2a7099027ee

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