Malicious PDF — malware analysis report

Static analysis result for SHA-256 e919810b93c3068d…

MALICIOUS

PDF

67.6 KB Created: 2021-02-18 21:04:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 71a18c56a2b44da4da80f4d481b2afbb SHA-1: 5f3027517a0afa330f5e134f4f24dd96d11df843 SHA-256: e919810b93c3068d352b262a27341e9e6fef0edefb29c67c7f7a366becf3ea9a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://druttle.ru/wix?keyword=vectors+and+projectiles+2-2+answers PDF link annotation
    • https://vuzowukuz.weebly.com/uploads/1/3/0/8/130814197/dinemaradadale-vifojogopepanu.pdfIn PDF document text
    • https://lojexidipiwakif.weebly.com/uploads/1/3/4/0/134041559/605974.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452626/normal_5ff898cd42e2d.pdfIn PDF document text
    • https://penopamez.weebly.com/uploads/1/3/4/4/134496097/sirigodexofodivigiwu.pdfIn PDF document text
    • http://musc-media.xyz/sedabepemuputumf35h.pdfIn PDF document text
    • http://m-laskin.ru/sowugimepatap9i2s6.pdfIn PDF document text
    • https://cdn.sqhk.co/giravopakiw/ejbilhh/gladiator_glory_mod_game.pdfIn PDF document text
    • https://samabuwe.weebly.com/uploads/1/3/0/7/130739499/geduzulobulo.pdfIn PDF document text
    • https://nimaxosonoj.weebly.com/uploads/1/3/4/8/134897368/niroxedog_japixakazutufe_joxatorivetuj_rigigavu.pdfIn PDF document text
    • https://sijetuso.weebly.com/uploads/1/3/4/4/134499475/sojajebeguxotav_kilokix.pdfIn PDF document text
    • http://plusstore.pro/microbiology_an_introduction_13th_edition_citationzsvml.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/zamuriza/angry_birds_blast_mod_apk_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/obesity_physical_activity_and_diet_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/bagubapujokiperirorenel.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_off0000cd05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD05 5364 bytes
SHA-256: ad1f896092a2a471b37ca87cc335f1b795e15bd277af66c888f864304083ee6c
font_01_sfnt_off0000df75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF75 9848 bytes
SHA-256: 14f190c8ddc6964f75d206e57b8b0c3a6b719da91444743dac5742040f27893d