Malicious PDF — malware analysis report

Static analysis result for SHA-256 79b11ca3236a788c…

MALICIOUS

PDF

49.1 KB Created: 2020-08-13 22:40:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1717ea3678f2fc4ba80b3b4571a24d4c SHA-1: df2cf4da60858e4424cbc45b11fbc24d92dbf861 SHA-256: 79b11ca3236a788ca4df1a371e4def40f8b1add25bba6394b5610f80b0d4e721
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to appear as legitimate content. The primary malicious URL, 'https://ttraff.cc/pify?keyword=amla+ka+sita+song', is identified as a redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting an attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or malware distribution lure.

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=amla+ka+sita+song In PDF document text
    • http://lusis.spcym.org/uploads/1/3/1/3/131379326/2349132.pdfIn PDF document text
    • http://files.sinergysports.com/uploads/1/3/0/7/130775126/zurobupazap_rusanarupofuz_bolefa_sasoj.pdfIn PDF document text
    • http://files.caroldmarsh.com/uploads/1/3/1/4/131482886/kibojezur_widavodukexo_vazulaxo.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
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/33103509679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1016/2837/files/campus_design_case_study.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7920/4006/files/animation_creation_app_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4910/6080/files/mumogojezofafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/zobami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/94228939163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1617/4237/files/40567963532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4294/4677/files/5662859674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9411/3446/files/52574366497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4464/9630/files/81573419011.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC0 4632 bytes
SHA-256: d8bfb92983ca528d03e73ceae246e093e4099dfffbfb4843f7418571dfd12782
font_01_sfnt_off00006f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5A 14096 bytes
SHA-256: 04cd7c3886c1aa47a5bc56d10095771e2cf2e40391a834e6e765bacf1bcc0d1b
font_02_sfnt_off00009bee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEE 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
font_03_sfnt_off0000a9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9EF 2788 bytes
SHA-256: 3bda73875703d0e9c5b9d5bbf973aff04c6dc79948069c61a31856c5988536cb