Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf9d6ce16d86273…

MALICIOUS

PDF

34.8 KB Created: 2020-08-21 18:13:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 780eceb70b1a9a195793675a5a41480e SHA-1: afc1beb68126dfd4f979c15d88011f7009d449ac SHA-256: 6bf9d6ce16d862730459697c2d1305a3e84073e44976214048fbd28f66eebffd
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.cc) that is flagged as malicious. The document body and heuristics indicate a lure related to 'nes emulator 72 in 1 apk', suggesting a phishing or scam attempt. The presence of a link farm and SEO redirector points to an attempt to distribute potentially harmful content or lead users to malicious websites.

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=nes+emulator+72+in+1+apk In PDF document text
    • http://files.allamericancargo.com/uploads/1/3/0/8/130874317/4cbb39116bf.pdfIn PDF document text
    • http://files.hoosiernaturopath.org/uploads/1/3/0/7/130739949/gifamefibumad.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/1/0450/2811/4582/files/les_champs_elysees_paroles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4149/6986/files/muketeruzalipixapeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6518/7992/files/banjara_song_pagalworld_ek_villain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3078/9800/files/adobe_ebook_reader_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1635/4977/files/20055475817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/educational_psychology_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7528/6693/files/pema_chodron_when_things_fall_apart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9631/7845/files/65678395930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7818/0259/files/gonezobixixovifej.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: hoosiernaturopath.org 3 samples

Related samples 5

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_off00004a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A56 5264 bytes
SHA-256: 292938b4d35e0fc651d2f6d23dbfc62f12e9cbba945384b955473d8d1927736a
font_01_sfnt_off00005c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C38 10128 bytes
SHA-256: 0fa15a44959606cc6c200357efa2859be15f7f54f2c73ded2ac378f071de656a

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