Malicious PDF — malware analysis report

Static analysis result for SHA-256 61263a8f2084fcdc…

MALICIOUS

PDF

62.8 KB Created: 2020-08-09 01:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2d50b3c5c0165ea1c646e8c11ac9042 SHA-1: 1f029222e0342eb52c2c45f096d442e9e0c88997 SHA-256: 61263a8f2084fcdc3146c7b8015c83210a00f3bebd3044b8344b386217fd58d6
194 Risk Score

Malware Insights

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

The PDF contains multiple links, including one to a known malicious redirector, suggesting a phishing or malware distribution attempt. The heuristic firings indicate the PDF is designed to link to external resources, potentially as part of an SEO link farm for malicious purposes. The embedded URL and the document body text, which includes a link to 'ttraff.cc', support the conclusion that this document is intended to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=basic+accounting+rules+in+gujarati+pdf In PDF document text
    • http://files.amphionpercussion.com/uploads/1/3/2/6/132681464/pevikawejof-koroviposof.pdfIn PDF document text
    • http://files.nbbcob.com/uploads/1/3/2/6/132681394/niwusekezuforemirodu.pdfIn PDF document text
    • http://files.kingschapelashford.com/uploads/1/3/0/9/130969386/xabikuwofabesu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/kidipomorunilojewepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5761/8850/files/18527893988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5016/3609/files/netcat_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/36501713049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0052/9049/files/bijedebevirajagovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/majusotogozarow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9036/5864/files/bioenergetics_mcqs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4343/0305/files/gozebukuviromaxile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0498/files/terarupibizutinulujige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/15188924561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3142/7234/files/1679167147.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000633d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633D 5448 bytes
SHA-256: 00b790d481c580658b555c027e20c91ca96f381d87dac9364ed8815f1a95fbd3
font_01_sfnt_off000075d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D6 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off00008138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8138 8144 bytes
SHA-256: a618c0b16c249e0c39d1934e6c646c1ff09947e954d25bd6198c046940da1763
font_03_sfnt_off00009b34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B34 10012 bytes
SHA-256: 34a12103eb955b9242228b2c5f5e7710d803e386c9c6da6179a064add75f53c3
font_04_sfnt_off0000bdbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDBD 16120 bytes
SHA-256: 988a316f543fb787c6e548b45acc8bfd59cad13da049e9ddbad57dfbfbb9e7cc
font_05_sfnt_off0000d2cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2CF 7296 bytes
SHA-256: b5691caa1c313c2f0b209d6b4e6edb3d1ee9776f406df5ba081a15fa28904199

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