Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae005fb7ff4f7a42…

MALICIOUS

PDF

72.7 KB Created: 2021-03-01 19:03:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c49d1495e630e3b2fc2e07261fdb0aa5 SHA-1: 99a278cdd4961f6761a43932b5ec2527fd433ccb SHA-256: ae005fb7ff4f7a42488c39613713d06f73fc21a08b557879f7f0a9d9691715e6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/wb?keyword=how%20do%20i%20become%20a%20spiritual%20life%20coach PDF link annotation
    • http://chunyoo.com/grade_2_reading_comprehension_worksheetsjrksf.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/electricity_and_magnetism_worksheets_8th_grade.pdfIn PDF document text
    • http://dapajurop.mygamesonline.org/when_do_you_use_a_dehumidifier_in_the_basement.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366406/normal_5fd147c40bbc2.pdfIn PDF document text
    • http://carluxepaint.site/givovivozusunobixi07c4k.pdfIn PDF document text
    • http://basumoxivor.sportsontheweb.net/lulokejenaliteli.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/gusoji.pdfIn PDF document text
    • http://ritual-venki.online/tc_electronic_flashback_x4_power_drawvjfvj.pdfIn PDF document text
    • http://gamukanemafutu.mywebcommunity.org/netgear_wnr2000_repeater.pdfIn PDF document text
    • http://creampiepow.club/63195756pelxc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_600f4a5611054.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/vewiz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465249/normal_5fe03c65b9ff8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://womawujun.atwebpages.com/acer_aspire_v5-431p-10074g50_mass_spec.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/kufotumiboxibewoxiza.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_off0000e011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE011 5588 bytes
SHA-256: 2f839ade118528f6c81c69378eefcc88ae23d52cf20d26bf88cd098870aa9257
font_01_sfnt_off0000f2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EA 10312 bytes
SHA-256: 06678724595bf1acdb751fea8f26068e6481041a0a01466150056471f2692aab