Malicious PDF — malware analysis report

Static analysis result for SHA-256 241df891825971a1…

MALICIOUS

PDF

39.7 KB Created: 2020-08-08 17:36:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae982845c212556898f9c7ed88dcd7b0 SHA-1: 2bf91a279f2a3e236e9937bcaecaf2c7efe45d42 SHA-256: 241df891825971a10d315540b4a1929b77a5b835478b6def75f261e0da7b818c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, including one to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, appears to contain the same URL and references to metro maps, suggesting a lure. The presence of a malicious redirector link and the ML classifier's high confidence indicate a high likelihood of this document being used for phishing or malware distribution.

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=delhi+noida+metro+map+pdf In PDF document text
    • http://files.1am.ency-education.com/uploads/1/3/1/6/131606407/54865f2d22.pdfIn PDF document text
    • http://files.mwdcoach.com/uploads/1/3/2/6/132682076/mefewufat_gorafupepe_pogez.pdfIn PDF document text
    • http://wobozebej.naturalc60.nl/uploads/1/3/1/3/131380600/6349129.pdfIn PDF document text
    • http://files.secretpriceofhistory.com/uploads/1/3/1/4/131453674/6b6b7f57c.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/1/0432/9324/5590/files/online_travel_agency_business_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3541/files/56661135262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31906594002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9265/5780/files/bamiweduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2290/7554/files/amelie_nothomb_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4060/4313/files/alter_ego_plus_1_guide_pedagogique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3929/3593/files/sepse_neonatal_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/33122643957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7929/4358/files/mogijejififigusimokej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4089/1292/files/bloons_tower_defense_3_unblocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xizijifopaxefiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/futowezatutaket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9021/3019/files/93589218826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/96568869991.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_off00005fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD7 5104 bytes
SHA-256: 9b20a789ae92465b9be486b957a1acbd9ff4c86f112128c91751f1fcd7934346
font_01_sfnt_off00007106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7106 9636 bytes
SHA-256: 7130088c3b251e0d582dd7b4c30dd30effc3740a07f509631000b5286c4631b0

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