Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d50cd6cabc1208…

MALICIOUS

PDF

41.0 KB Created: 2020-08-12 18:11:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96ba92fe8f19fd8c4dad2fe6ca84069d SHA-1: c935c1ce6f28f9496f042e3e8ae50abfcb34cbed SHA-256: f2d50cd6cabc12082ed25888f86c5a1f49991d009fcdfdf335992b16c19f1a40
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aneurisma+otak+pdf'. It also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though partially corrupted, contains text related to 'Aneurisma otak pdf' and the wkhtmltopdf generator, suggesting a lure to download or view a PDF which actually leads to malicious infrastructure. No scripts were extracted from this sample.

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.cc/pify?keyword=aneurisma+otak+pdf In PDF document text
    • http://xufase.theeatingdisordercenter.com/uploads/1/3/1/4/131407558/dcfbab67367ee.pdfIn PDF document text
    • http://gelade.leiden-united.com/uploads/1/3/1/4/131438641/robejepusex.pdfIn PDF document text
    • http://files.melodyrgreenbooks.com/uploads/1/3/0/7/130740065/8211051.pdfIn PDF document text
    • http://files.southeyeclinic.co.uk/uploads/1/3/1/0/131070309/xosuwegafokib-metenutilen-xatagunedoza-mekenevusewuw.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/1/0431/5735/6695/files/59322605115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4402/2944/files/arcadis_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/tepexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/vaximewexatosuragugalixab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1112/1063/files/clover_boot_args.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/zafekabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7278/1478/files/risk_of_rain_2_mercenary_ethereal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9003/2278/files/catalogue_ikea_1999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9937/4233/files/adverse_selection_and_moral_hazard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/prioritization_delegation_and_assignment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7295/files/karimuvinemabodisidokuvu.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 8

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_off00006469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6469 5208 bytes
SHA-256: 77d152b452121e63bd3c60be213ebdf2b6433d6b00905e82c41ac22a2f7b63f3
font_01_sfnt_off00007609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7609 9820 bytes
SHA-256: 46b4cf8a031a100c297db57f7a6e57237d8a90dda6b6874ea2d3c88469a72979

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