Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa4b84a10faeaeb5…

MALICIOUS

PDF

51.7 KB Created: 2020-08-12 13:42:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 806ddfe93105958bd586578689293219 SHA-1: 179677937cbfa3fc41804dcef4777574ae706a35 SHA-256: fa4b84a10faeaeb53fc48d4184ef174fbb46a0e3fa91745b4ebcf51b97c90f5f
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ganpati+aarti+sangrah+marathi+lyrics+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The file also contains a large number of embedded links, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, limiting the analysis of further stages.

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=ganpati+aarti+sangrah+marathi+lyrics+pdf In PDF document text
    • http://buvivo.garageshopcustomwoodworking.com/uploads/1/3/1/6/131637354/zoluworirematutebibu.pdfIn PDF document text
    • http://files.tompa-fg.com/uploads/1/3/0/8/130874482/vilidazofawad.pdfIn PDF document text
    • http://repakakov.dealswithamy.com/uploads/1/3/1/8/131857247/pozagoruxunod-betixagavi-satefaneta.pdfIn PDF document text
    • http://files.planofmd-dc.org/uploads/1/3/1/3/131383581/9b672db77981345.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/1/0438/8998/3640/files/63725301057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/face_expression_recognition_matlab_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/27340086975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4659/8821/files/zobesijasepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/4356737178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/vapudiboruligunut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6318/9412/files/hygge_meik_wiking_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/66780303435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2344/8736/files/16072306208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8953/4869/files/82278950220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4163/5997/files/talilirodowadolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2098/9095/files/forex_pin_bar_strategy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/32527005362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/mezogozivusivitegovim.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8295 5704 bytes
SHA-256: 9258866ae53b8e166f0488f6244f61a9ddddc477d0f6e44b0ff3b4b3f82b2efb
font_01_sfnt_off000095d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95D5 13804 bytes
SHA-256: 2497a64a61445ad03ee42cbca0e1e4a30ba615d239a8de7f507af444ce43d286