Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5866f95bca53d81…

MALICIOUS

PDF

58.8 KB Created: 2020-08-08 02:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3285d4df23142530cd3250915038e821 SHA-1: 44139f20840442da207496819686d3b95c026078 SHA-256: f5866f95bca53d81260788c6ae276a46299b55fc97682684bc30a17a5d5e9285
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its inclusion of a redirector link pointing to a known malicious infrastructure. It also features a large number of external links, characteristic of a link farm, with the primary redirect URL being https://ttraff.cc/pify?keyword=artikel+tentang+bahaya+narkoba+pdf. The document body, though heavily obfuscated, contains this same URL, suggesting a lure to entice users to click on malicious links.

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=artikel+tentang+bahaya+narkoba+pdf In PDF document text
    • http://files.wongyuhao.com/uploads/1/3/0/8/130814101/vezupat.pdfIn PDF document text
    • http://tatusop.thecarolinacanineranch.com/uploads/1/3/1/4/131483281/netuf-jijapikofep-vipefijulegit.pdfIn PDF document text
    • http://xutenov.pieceokake.org/uploads/1/3/2/6/132681946/gasemefek.pdfIn PDF document text
    • http://files.topophotography.com/uploads/1/3/0/7/130775331/9942101.pdfIn PDF document text
    • http://files.andfairphotography.com/uploads/1/3/0/8/130874284/db4f4ce83fe.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/1/0429/3427/2159/files/70783609599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/kuxuvedenuzuresunezuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9112/2584/files/dapeliwalikijizafoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/59336484488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8262/6710/files/zifugerezojejelepapovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/25698619220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3952/8872/files/lignin_degradation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2131/0880/files/manual_de_cooperativismo_y_economia_solidaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7764/8027/files/rusinulapitij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5467/8687/files/24392522260.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 5

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_off00009b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B65 5208 bytes
SHA-256: 195751e2a498a3b8f8d6ab99ece29f5cdfa6079601b399b49e9427e662c880fd
font_01_sfnt_off0000ad0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD0D 10092 bytes
SHA-256: 018017bf64b6da148bd14ec6e55c32b1ff87cb6255e27ae4443d969a0f59c23e
font_02_sfnt_off0000cf89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF89 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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