Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8c5909be0af4b83…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 06:48:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 209c0419e9eab91d4e0dc77911f1d237 SHA-1: 4139fcb795875e30615ef1338a6c990b12343b9f SHA-256: a8c5909be0af4b839abca06185b01c1e794dae7866c8382641e9d4e61d75abdc
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, 'https://ttraff.com/pify?keyword=kshatriya%2528+1993+full+movie', which is flagged as malicious. The document also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The ML classifier 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.com/pify?keyword=kshatriya%2528+1993+full+movie In PDF document text
    • http://files.franklincountyhypnosis.com/uploads/1/3/2/8/132813998/1e70760.pdfIn PDF document text
    • http://files.bastionaudio.co.uk/uploads/1/3/0/7/130740051/7947868.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5529/9237/files/48403504194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/7488117932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/pozofunozizeseme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6943/9141/files/tejekejekovilumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1149/7366/files/process_walk_interview_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2241/7046/files/34233162898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3551/7337/files/foforavivagemidamuzix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/branson_tractor_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/71029945093.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 3

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_off000068c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C3 5588 bytes
SHA-256: 2e04630566701b6b726b138febbba26efc3cfcfe0f2d82bb5151f4027b112e18
font_01_sfnt_off00007bbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBE 10076 bytes
SHA-256: 15f609ff5fcab2644345cade5ff280bb476159cb8bb47004cd4a69e0670378ad
font_02_sfnt_off00009e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E73 2836 bytes
SHA-256: c2a3fc3f8cc986542a1e85ba9bf0ee89b2c78e2a94c49d045e312c8f3a766a80

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