Malicious PDF — malware analysis report

Static analysis result for SHA-256 bab3f312a45672ac…

MALICIOUS

PDF

64.4 KB Created: 2020-08-04 06:44:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e0e931f19b590e9495c8465c97e1558 SHA-1: d4153d955c9036826307dd922b1e23fbc9cb69fd SHA-256: bab3f312a45672ac8fddcd0108a7fbbd0fbf7dd526a4dceb100e830e8d34781e
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=reprendre+confiance+en+soi+livre+pdf. The document body, though heavily obfuscated, contains this URL, suggesting a lure to download a PDF. The file was generated by wkhtmltopdf, a tool often used to create PDFs from web content, further supporting the redirection-based attack pattern.

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=reprendre+confiance+en+soi+livre+pdf In PDF document text
    • http://files.martinsburgflipside.com/uploads/1/3/0/8/130874431/koxafelikiz.pdfIn PDF document text
    • http://files.asbwellness.com/uploads/1/3/0/7/130776592/xomug-tugofulawan-wugifineluwajun.pdfIn PDF document text
    • http://files.patriciasmom.com/uploads/1/3/1/4/131438248/gesariri.pdfIn PDF document text
    • http://files.flipconsultants.com/uploads/1/3/0/8/130874347/zigunodegolidota.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/1/0434/7366/6213/files/60219691519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3929/3593/files/dinikok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3568/1180/files/tevuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/dejekerifotuwome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0021/files/83295800464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4151/2855/files/14731160199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3246/0960/files/91711258754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/31340185695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/90676906667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/pimategefujozezadad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6464/7077/files/27149919748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1686/2371/files/fidubomefudujamofijuzaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/69708190132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0947/2669/files/7735878420.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_off0000bb34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB34 5216 bytes
SHA-256: 0ddbf895e9fe4eb3ed975fe5fd77bfba7a42af8642443ccde08176034d8bf53f
font_01_sfnt_off0000cd0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD0E 12252 bytes
SHA-256: bb060a21cba613f4e449b222b545851ae7ca0a2fa1c4f4cb4cdcec1cd117c207

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