Malicious PDF — malware analysis report

Static analysis result for SHA-256 8358531334ac480f…

MALICIOUS

PDF

52.4 KB Created: 2020-08-21 14:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be0993d92c1b0bcb3bf90af37a083897 SHA-1: b768f5281837cf9e353c64e80bba3bba8c773d14 SHA-256: 8358531334ac480f4a32685592fa1109ab4321a361a4eb4a32a3e5dce91902a8
162 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final malicious destination. The document body and heuristics indicate a lure related to a 'Bangla gaan app', suggesting a phishing or scam attempt. The presence of numerous embedded links, many pointing to Shopify, indicates a link farm designed to distribute malicious content.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=bangla+gaan++app In PDF document text
    • http://files.rpglayout.com/uploads/1/3/0/8/130874317/8654128.pdfIn PDF document text
    • http://files.privatecarhirelondon.com/uploads/1/3/1/4/131407178/pivilirolefat-depakara-dusoz.pdfIn PDF document text
    • http://files.pittcorelab.com/uploads/1/3/0/7/130739786/9bb2cbfd.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/1/0433/5468/5599/files/podadovesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5542/4423/files/83608107334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/98605193455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3410/7286/files/95534447176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3644/1767/files/vidmate_app_install_old.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/papajoratenizusozonudexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/javascript_for_each_loop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/17110793449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6095/3249/files/application_form_dl44.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7419/0498/files/kuvik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7882/8700/files/16490591687.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 3

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_off00008f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F23 4764 bytes
SHA-256: ac9306f42a17ec25b191654199c873bea907aef19c5af5bf47cc584f60478eaf
font_01_sfnt_off00009f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F6D 10940 bytes
SHA-256: 43e50ce1bb181ef63480ea588c998f01e404e545d4c9fed9be1ebdfb12f44c93

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