Malicious PDF — malware analysis report

Static analysis result for SHA-256 a09ddc487626eded…

MALICIOUS

PDF

69.9 KB Created: 2021-02-18 17:41:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f5507a303ac14ad07cafafd7fd2d63e3 SHA-1: 78881ae324900a4024e5d5b5bb1b8119e88c57ff SHA-256: a09ddc487626ededa1fdc43381d785fcb47715f9a6e428579aca2d30b9203c1f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/wix?keyword=fix+the+sentence+worksheets+3rd+grade PDF link annotation
    • https://cdn.sqhk.co/dibirolinu/vhdifhj/warajap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452837/normal_5ff8fb67d3cdd.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/hjbBihG/football_manager_2016_change_squad_status.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/gizhbhb/flappy_bird_killed_brother.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485163/normal_602b25736e2f4.pdfIn PDF document text
    • https://cdn.sqhk.co/zovitamojim/Ghhgile/absolute_rc_plane_simulator_all_models_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446158/normal_602724574cbb5.pdfIn PDF document text
    • https://cdn.sqhk.co/xonarewu/jihemha/pact_socks_coupon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446400/normal_600a6c69c1eeb.pdfIn PDF document text
    • https://cdn.sqhk.co/gitogozune/wYhfgc1/63228985854.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501046/normal_5fd6625341ede.pdfIn PDF document text
    • http://fobutolojad.iblogger.org/chichen_itza_tour_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/befikatobutela.pdfIn PDF document text
    • http://zapulozamatuwe.epizy.com/weider_pro_4950_assembly_video.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/vomoparujerojerewog.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/begatixenurivage.pdfIn PDF document text
    • http://dimonejoxu.rf.gd/87470608763.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/76195106950.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_off0000d55d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD55D 5512 bytes
SHA-256: 06b53ecc7e0a74c43802814cbe39ea6df6465911f1f76b621bc2df5360157cdb
font_01_sfnt_off0000e82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82D 10088 bytes
SHA-256: 140334adc0b71df220ee13535301911659e14ba977aaa8df3976a65845f422a8