Malicious PDF — malware analysis report

Static analysis result for SHA-256 608ac1959b0f0fde…

MALICIOUS

PDF

42.9 KB Created: 2020-07-28 08:27:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5213c53a4655e9d780ad2721d19c040 SHA-1: 188fa29a346fc8750f49177003214708fb2788cb SHA-256: 608ac1959b0f0fde8e77322d70af40c5b49c8fd32a79cb9093bf0b7e003cc9b6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. One such redirector URL is 'https://ttraff.cc/pify?keyword=bing+video+er+for+android', which is likely used to funnel victims to malicious sites. The document body, though heavily obfuscated, contains text related to 'Bing video er for android', suggesting a lure for potentially unwanted or malicious applications.

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=bing+video+er+for+android In PDF document text
    • http://files.mindbodysoulutions.org/uploads/1/3/2/6/132680853/putidusurapezorux.pdfIn PDF document text
    • http://files.huegah.com/uploads/1/3/1/3/131381721/577c7.pdfIn PDF document text
    • http://files.maths180.com/uploads/1/3/0/7/130775557/cadeb8.pdfIn PDF document text
    • http://files.brittanybirddogkennel.com/uploads/1/3/2/3/132302951/nuvixis.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/1/0433/0687/7080/files/boguxexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3206/7748/files/37694516863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/reguvibatofodusiboli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6631/8230/files/fibeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4845/9673/files/55285323024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3173/3159/files/gavulesojaledojorubuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0124/9955/files/lisogiwidagakixirax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/51608900237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/42312041050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8918/0310/files/zutewa.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: blues-city-kids.com 7 samples

Related samples 4

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_off00006dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD4 4680 bytes
SHA-256: 74b6d9ff0d8211805a85f4540a172e1614823fcaae696ec3315173f81c0cbe87
font_01_sfnt_off00007dc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC6 9652 bytes
SHA-256: d60b0187f3feb7bccba6b2b7bd89505b4ff22ea61e26f09ac62c70076978aea1

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