Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e27c9fb6202b205…

MALICIOUS

PDF

73.5 KB Created: 2021-02-07 18:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: cc163959e1233e47a6ec579bf112bf76 SHA-1: 6f4d52a28bbb91f51dc9f966822745c130ea1f92 SHA-256: 9e27c9fb6202b205b5e72aa2d897325515a57fac0ae986674bc91e2b0f627864
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://maypoin.ru/123?utm_term=debate+terms+for+middle+school PDF link annotation
    • https://cdn.sqhk.co/lifudidu/r22gegj/34998125984.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413239/normal_600eba40b7f5b.pdfIn PDF document text
    • https://levalezekavazif.weebly.com/uploads/1/3/4/6/134639406/3172b2bb545389.pdfIn PDF document text
    • https://cdn.sqhk.co/zumufapofow/dyljatd/2048_cards_casual_2048_solitaire_games_free.pdfIn PDF document text
    • https://bapixive.weebly.com/uploads/1/3/4/3/134393773/083deb81534c.pdfIn PDF document text
    • https://rominekajamarol.weebly.com/uploads/1/3/4/0/134040464/ropuzebedulib-nadawigup-fojeladadof-wulevivuxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425506/normal_600b657166d35.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/jhhedHW/callaway_mavrik_driver_review_golf_digest.pdfIn PDF document text
    • http://axecheat5.xyz/glencoe_chemistry_matter_and_changeut6es.pdfIn PDF document text
    • https://cdn.sqhk.co/gubisagebuto/BBkhcl8/viworibe.pdfIn PDF document text
    • http://flash-sar.online/kennedy_space_center_visitor_guidewjrgz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fapibudu.epizy.com/trending_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/khadya_parchi_mp.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/bluetooth_earbuds_android_reviews.pdfIn PDF document text
    • http://buguwotibiven.rf.gd/xixilowamofizibijesu.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_off0000e3a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A5 5400 bytes
SHA-256: 96cd2c90434b52795e9760b4e6fc8f49a9f01de16aef847882ccbc0eaa5ea93d
font_01_sfnt_off0000f5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D8 10372 bytes
SHA-256: 1f51ff790db1753e702d6710f41d7278e884a8b283777dae4dca6c14b0e2be4b