Malicious PDF — malware analysis report

Static analysis result for SHA-256 d964971211c4e04b…

MALICIOUS

PDF

71.2 KB Created: 2021-02-28 01:16:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 226da3508e225a3bf469cceb14313439 SHA-1: 7594b940bb2aa2e52a5424c5c784cd940fb30a5e SHA-256: d964971211c4e04bbfb481689f2e2efdb5848782315a8fdec22d4913821c28eb
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dafemum.ru/aws?utm_term=hunter+lawn+sprinkler+controller+x+core+manual In PDF document text
    • http://figojusu.iblogger.org/what_are_the_four_types_of_business_structures_forms.pdfIn PDF document text
    • https://vurinilobato.weebly.com/uploads/1/3/1/4/131454355/2dec4600a4.pdfIn PDF document text
    • http://fionainthefield.org/can_you_use_a_fondue_pot_for_hot_potf33y8.pdfIn PDF document text
    • http://kawopewil.22web.org/action_item_list_template_excel.pdfIn PDF document text
    • http://luzikudejijes.22web.org/vujezemaluson.pdfIn PDF document text
    • https://gimiduti.weebly.com/uploads/1/3/4/7/134711596/73b230c8.pdfIn PDF document text
    • https://mazazujusuvazix.weebly.com/uploads/1/3/1/8/131856432/zojir-tipovov-lifutupepulul.pdfIn PDF document text
    • http://idealslimitaly.site/gadibasefizecmzvd.pdfIn PDF document text
    • https://subefurova.weebly.com/uploads/1/3/4/5/134505332/4cb2427eec24c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vogumogut.epizy.com/neil_degrasse_tyson_books_to_read.pdfIn PDF document text
    • http://sozakerikiperoj.epizy.com/71377631084.pdfIn PDF document text
    • http://mudasaki.epizy.com/funny_picture_books_for_8_year_olds.pdfIn PDF document text
    • http://vakakumiwizexoj.epizy.com/kazebenudinumuzuguvox.pdfIn PDF document text
    • http://pojuzuduxotazup.epizy.com/59052565026.pdfIn PDF document text
    • http://japenuwefi.rf.gd/12187816954.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_off0000d9e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E4 5264 bytes
SHA-256: 8897784f613e60827ffaf1e23449137806f82050e20af4b2d597d33922ce850c
font_01_sfnt_off0000ebca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCA 10636 bytes
SHA-256: 1b84ecee0e928dfbe9034f67b252b5060e48656b8372a4e9e89d9707b168062c