Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a0e362dc08a15f9…

MALICIOUS

PDF

36.2 KB Created: 2020-08-19 06:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aca03d97384f8f58bd2f5a363e8a96d6 SHA-1: 5c888b28758028bc9eaf58f14bdf0afe49bd078f SHA-256: 4a0e362dc08a15f92e53e8f92999e3efd39e6e36146fc29e9f4f2e30ad05d7a4
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=latest+movies++in+hd+telugu+free'. It also exhibits a PDF link farm pattern, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and a link to a PDF hosted on cdn.shopify.com, suggesting a lure to download further malicious content. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=latest+movies++in+hd+telugu+free In PDF document text
    • http://files.tenterdenclt.org/uploads/1/3/2/7/132741029/xejosibubexejo-miliwiva.pdfIn PDF document text
    • http://zikuma.usucbs.com/uploads/1/3/1/4/131454165/5932825.pdfIn PDF document text
    • http://files.mobadanceacademyus.com/uploads/1/3/0/7/130739202/4403828.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/1/0437/6172/9685/files/viledodopekuduvabuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/57029801150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9289/6920/files/vamavugoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5770/8193/files/xatube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/rurebifibolatawetefogiwew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2732/3301/files/98556119655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0906/3586/files/53203099992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1856/7335/files/building_construction_books_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/mikoxadexedefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7028/3173/files/troybilt_5550_watt_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7920/files/badminton_court_size_and_net_height.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_off00005068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5068 5324 bytes
SHA-256: 4de4de1a70bec0847bbf8486042cbb3e078afc4b1d2f48c89a548ce26f35fd6b
font_01_sfnt_off0000625a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x625A 9908 bytes
SHA-256: 59eafbc1879766c79e990445236dba74d7e504a2311e6068a69428cbdeeb38da

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