Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe14117d4b5a8dd…

MALICIOUS

PDF

76.4 KB Created: 2021-03-18 14:58:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ec10b6010d6c4b89d6925c31f89b4297 SHA-1: 12d90c72850be7648e4630f5e9d3069984ec8a19 SHA-256: afe14117d4b5a8dde7d1c5f41c14dca8b810e47e354c77918aed52605becc361
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/strik?utm_term=how+to+find+parallel+and+perpendicular+line PDF link annotation
    • http://dibopisol.iblogger.org/voxoxodegutufuzezipo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413848/normal_5fe75b9526c3b.pdfIn PDF document text
    • http://wavikedinufefe.iblogger.org/wasub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476924/normal_600b4117ba932.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483082/normal_5fe9343164bf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394060/normal_5fd3b975d402d.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/dinisemowoge/samsung_smart_blu_ray_player_apps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03aead02-c05f-454b-bdce-f8a5e8dcdeab/starbucks_coffee_cup_christmas_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd881801-235c-4b68-850d-6d21e4d1ca8a/86711316906.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/dc_comics_flashpoint_batman.pdfIn PDF document text
    • http://vakisetituli.rf.gd/rasef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cc6c36d-0b63-44d2-851f-22a052405047/lujuxo.pdfIn PDF document text
    • http://zebofazedixa.rf.gd/wifi_heslo_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/vuwuselisimol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecb13c5a-493f-4b64-a0af-44fdf7a74256/99719561096.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59fd8f78-90fc-4e98-b93a-3342ad913ab0/the_lake_house_2006_explained.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea9ec672-131d-4aa3-93e5-b1fdda0be11a/honeywell_th9320wf5003_wiring.pdfIn PDF document text
    • http://durunorutap.epizy.com/bleach_brave_souls_android_game_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd2ef0b3-db98-4137-aec4-773aec905063/sijakufupasome.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4426e517-fe26-4ef7-b363-c760ef0a5b47/how_success_in_network_marketing.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/orari_poste_campoformido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d5c0413-504c-470c-8918-7b1d9da9d426/what_is_a_bill_of_exchange_in_banking.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_off0000eb92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB92 5024 bytes
SHA-256: cfa0fd3ed97e79576e0d39ac10f379a38a84896ed858ef179f23d1b1465c23b5
font_01_sfnt_off0000fcce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCE 11380 bytes
SHA-256: de475f8a60423485ada532bb151bee74dfd2468241008387f31d48152191190e

Open this report in the interactive analyzer, or submit your own file for analysis.