Malicious PDF — malware analysis report

Static analysis result for SHA-256 78486d7d62d7b968…

MALICIOUS

PDF

40.5 KB Created: 2020-08-22 10:47:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0faeeda92b63c66cca49c94ea40b0f26 SHA-1: 968149ac466d45eee437b340d3ae68f03a832cef SHA-256: 78486d7d62d7b9687b7fa0c313f8d6cb6af6669c17f817ed50ed98b25c3c4f3d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body and heuristics indicate a lure for a 'free download', likely a phishing or malware delivery attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect the user to a malicious site for further exploitation.

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=ai+green+screen+pro+apk In PDF document text
    • http://files.southwestdistrictcoinclub.com/uploads/1/3/0/8/130813777/1781995.pdfIn PDF document text
    • http://files.huntingtoncentral.com/uploads/1/3/1/4/131453194/3444170.pdfIn PDF document text
    • http://files.astrologervaranasi.com/uploads/1/3/2/6/132682134/nagas_dekexibodevarus.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/1/0435/9254/8515/files/best_bodybuilding_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9867/6131/files/malotojoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8766/7104/files/vosaximutawevipulogabomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6863/6834/files/54873191074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6251/6122/files/30403471096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/lonusamigodofazab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/90396629022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9025/1681/files/kikabebim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/19827796286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/bipimaxivugejokusi.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
🗂 Part of campaign: astrologervaranasi.com 4 samples

Related samples 7

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_off00005ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFC 5120 bytes
SHA-256: d5c06a61decb7c2880595a82faed844cafad9d8faf1ef4bdf3a26cf14c62f273
font_01_sfnt_off00007179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7179 10520 bytes
SHA-256: 4860ffd5b388936e2466d4fc7efbf3791ba2740085f81be932c669429223e450

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