Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dec8058a20eb91c…

MALICIOUS

PDF

38.1 KB Created: 2020-10-12 06:57:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 17d17651e9a2ac554c1066c7197db5a5 SHA-1: 60554961707448044fa14e1d3cfff66cb86fb6a4 SHA-256: 9dec8058a20eb91c5741fc00d4b393ee6f6622b37d8402083735eb9909fd35e4
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/pify?keyword=duo+therm+air+conditioner+model+57915 In PDF document text
    • http://files.cheapoklahomawebsites.com/uploads/1/3/0/9/130969971/1447752.pdfIn PDF document text
    • http://zoriz.harlancountyeda.com/uploads/1/3/2/6/132695584/9746292.pdfIn PDF document text
    • http://dudulu.lozelda.com/uploads/1/3/2/3/132303382/a416c56d4.pdfIn PDF document text
    • http://files.qualityelement.com/uploads/1/3/2/7/132740182/1917758.pdfIn PDF document text
    • https://site-1039330.mozfiles.com/files/1039330/betipemopozezer.pdfIn PDF document text
    • https://site-1041766.mozfiles.com/files/1041766/42161655492.pdfIn PDF document text
    • https://site-1038796.mozfiles.com/files/1038796/83616630566.pdfIn PDF document text
    • https://site-1043669.mozfiles.com/files/1043669/wiwumanutugipojigibujeden.pdfIn PDF document text
    • https://site-1039525.mozfiles.com/files/1039525/gubekubafubonojiwuwit.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/1/0483/2965/4435/files/urban_dictionary_wiggy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9807/files/death_counter_minecraft_command_1.16.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7683/2418/files/6838070481.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edac15a9-70e3-4656-ad40-056a112d8d23/tarepimemejonuxone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a5205bc-503b-4514-8e3b-1ff31c7248b7/larilugujevugateve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/855cb4f3-7ec5-44d1-879d-f8e8a3788db0/70903999068.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68d94dfc-0bf2-4024-b662-9720fcb219de/43966274991.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e092de5-2636-4e11-9ff1-c9fbfb06ed05/2823375655.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 8

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_off00005542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5542 5412 bytes
SHA-256: da9668ce4ff2a9d675e8ebc6c74469ae39c847306af0c96f94d9db5ef7633c0b
font_01_sfnt_off00006798.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6798 10312 bytes
SHA-256: 4680679b58590ed570b4b4ab0326933bab19ed2dadfb3e320b6960d1f0b12e2b

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