Malicious PDF — malware analysis report

Static analysis result for SHA-256 02679b48769a35fc…

MALICIOUS

PDF

53.5 KB Created: 2020-10-04 10:01:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6ec8a5e2673db306a03dab88638c172e SHA-1: acf6c98dae0ea182fbda6dfb0607b2e62bad82c2 SHA-256: 02679b48769a35fc45cce06ea52b1471c81b8827d78f2cddd396f230618ab13a
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.club/pify?keyword=the+hidden+life+of+trees+book+pdf In PDF document text
    • http://nezasig.catblanchet.com/uploads/1/3/0/8/130814328/7105284.pdfIn PDF document text
    • http://leded.delaneymorganrealtor.com/uploads/1/3/2/6/132681763/jenag.pdfIn PDF document text
    • http://gipiw.robertfreemanartist.com/uploads/1/3/1/3/131383271/lukegazixuzi_bidamutama_faxipovadusobo.pdfIn PDF document text
    • http://files.opulashbeauty.com/uploads/1/3/1/3/131380128/1047134.pdfIn PDF document text
    • http://files.clarkstonphysio.com/uploads/1/3/0/9/130969717/9064931.pdfIn PDF document text
    • http://files.creative-tree.co/uploads/1/3/1/6/131636728/ac97e043.pdfIn PDF document text
    • http://files.allofficefurnitureltd.com/uploads/1/3/1/4/131483138/pexosazo.pdfIn PDF document text
    • http://files.joescornerniles.com/uploads/1/3/1/3/131383651/4730a60544d.pdfIn PDF document text
    • http://wixexe.trupbsc.ca/uploads/1/3/1/0/131069869/4468639.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/1/0430/7140/6241/files/supersu_apk_download_6.0.1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5210/3845/files/control_raspberry_pi_with_alexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8701/0715/files/powadalagorodizirir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b869277-4af7-4a46-a699-f0a9bf82f265/vesimekikenazodoxow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3337b412-b5ea-40d8-bd4d-f44967871f8c/kelagenitax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b9a4ab9-0ab1-4811-96d5-25d3ec101c0a/buzujipunukezigifipugegub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f2940e0-b780-453b-b9be-0cffe56af36c/36621459191.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e7a5d9f-e300-4195-9204-214e4adcfe2f/43043554208.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9468 5072 bytes
SHA-256: c742a5300a831fbd7b8ed9bacebbe51d39ad73204ce721d7b4339ea751fb09cd
font_01_sfnt_off0000a59c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA59C 10352 bytes
SHA-256: 13301e9849211cc3c28a7ef6854560004c28d308bb14b3c26ba3a22a00fa40ba

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