Malicious PDF — malware analysis report

Static analysis result for SHA-256 387beb66439ae004…

MALICIOUS

PDF

42.5 KB Created: 2020-10-08 02:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: f64df6d131ae03c438fbd0533d452afb SHA-1: eab7b7506e76edaf0013a27f9452147edd0fde1d SHA-256: 387beb66439ae00437079c2cdf2a931aeb4520e20b8216dd32a0608f13fc454b
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://ggtraff.ru/strik?keyword=simon+paul+marsh In PDF document text
    • http://gudux.emilyfuchs.ca/uploads/1/3/0/9/130969744/690cf93ecfc5d.pdfIn PDF document text
    • http://files.ob1.co.uk/uploads/1/3/0/9/130969931/9925747.pdfIn PDF document text
    • http://files.dagriffincircuit.org/uploads/1/3/2/6/132682640/1517d03df.pdfIn PDF document text
    • http://jolurinel.1love-sos.org/uploads/1/3/2/7/132741555/furewexiwedotin.pdfIn PDF document text
    • https://site-1037130.mozfiles.com/files/1037130/gefurul.pdfIn PDF document text
    • https://site-1040663.mozfiles.com/files/1040663/putuveleno.pdfIn PDF document text
    • https://site-1036995.mozfiles.com/files/1036995/pekavadufebajawogaw.pdfIn PDF document text
    • https://site-1036661.mozfiles.com/files/1036661/fuzovutabezidopejego.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/d5119388-f969-473a-b1b9-ef75cb0ddb27/54339503040.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb3a4f60-1973-4eec-a4bf-b3d00d2dc5b7/56498344577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ff219aa-fc2b-43c9-8dba-9a16c2ab46e9/gawanasorikusamaxopupub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4b5b513-395e-48ab-9965-8b8635be237f/66978217727.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4308862b-c3ff-47af-bde2-6155edc6ed89/muzezitatefe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c84f68b6-69ab-44bb-a150-2654c928a3b5/53373940433.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d1b60ed-3c0b-4188-b3e3-e3bb8e8549f7/kixawitodalitoxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d36e8e6-6d03-4183-ac2d-66c7f025be65/nokud.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_off0000691e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x691E 5160 bytes
SHA-256: badb03bd1df601b45263fac2f7df21351882eb4f4d7d34638566c58023b42d90
font_01_sfnt_off00007a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A75 10508 bytes
SHA-256: e087a79e4cdc8b4d286af36b178cfa22dffe1fbe36e25e9dd52150909e466c57

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