Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1888dacfcd18391…

MALICIOUS

PDF

43.1 KB Created: 2020-10-09 05:19:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 450c4e36ea6596dec3386b80f69a37da SHA-1: 49a06c8390b8f670b828bdb1e5b128330d8d929a SHA-256: f1888dacfcd18391e0d69f6294167ab57551c37994fb04123ec6052b1412d5a4
184 Risk Score

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.
  • 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://ttraff.link/pify?keyword=happy+birthday+bonus+daughter+meme In PDF document text
    • https://site-1039235.mozfiles.com/files/1039235/24922720258.pdfIn PDF document text
    • https://site-1038981.mozfiles.com/files/1038981/bamunuzerolorag.pdfIn PDF document text
    • https://site-1036864.mozfiles.com/files/1036864/lebuvasamigetuwipux.pdfIn PDF document text
    • https://site-1041939.mozfiles.com/files/1041939/60111062604.pdfIn PDF document text
    • https://site-1038384.mozfiles.com/files/1038384/95695242467.pdfIn PDF document text
    • http://files.olivetreeartcenter.com/uploads/1/3/1/4/131408572/timeliguruvupuje.pdfIn PDF document text
    • http://files.williampeskett.com/uploads/1/3/1/3/131380388/6635598.pdfIn PDF document text
    • http://files.shscatalyst.com/uploads/1/3/1/3/131398479/xagilonagoboxox.pdfIn PDF document text
    • http://lixadagup.theprintingplace.net/uploads/1/3/0/7/130739348/tiraxexuke.pdfIn PDF document text
    • http://fijuf.gandecollective.com/uploads/1/3/1/1/131164250/razetazanopefig_tosokix_zanatadovav.pdfIn PDF document text
    • http://files.hippiechickband.com/uploads/1/3/1/8/131872289/mutazurit.pdfIn PDF document text
    • http://files.tararuff.com/uploads/1/3/2/7/132712413/fazakovi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ce467f6-803b-460a-b7d7-51647c4c43b1/12398658679.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3874684f-553c-4bf2-b7b3-d4bc3ec5466d/25701477487.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be265694-46a2-45f8-8d09-084639caae7f/vutitagawonularenosamo.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_off000069a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A2 5544 bytes
SHA-256: 024fdb49e5a39064367745356f64a0498e989f68179faeb72f5b744d9e32b939
font_01_sfnt_off00007c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C50 10352 bytes
SHA-256: 0a886023d3fe767896c7b3d699354e385d5126942e51d3c45b4c869bbc00ee16

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