Malicious PDF — malware analysis report

Static analysis result for SHA-256 217cae32b6a9082c…

MALICIOUS

PDF

80.9 KB Created: 2021-03-24 18:36:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8ddada7868111770120b191258613ecd SHA-1: 5692e360514bf9eb1a9096b1a552bcd9ab30f65f SHA-256: 217cae32b6a9082c2af9e7952f73456994fa50f07edbd981e44cb530472033e6
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 0.9997

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://maypoin.ru/wix?keyword=bully+game+apk PDF link annotation
    • http://betflixguvenilirmi.com/55909215078q2cvu.pdfIn PDF document text
    • http://lorozetuwivu.medianewsonline.com/gebilorunutapefi.pdfIn PDF document text
    • http://jebifawulu.mywebcommunity.org/dificultades_de_aprendizaje_definicion.pdfIn PDF document text
    • http://janorewaxeno.mygamesonline.org/44793446764.pdfIn PDF document text
    • http://wedidizelajat.mypressonline.com/waselo.pdfIn PDF document text
    • http://uspehdnyaaxyz.xyz/james_baldwin_a_talk_to_teachers_summaryfhw1e.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/tuxutedi/grocery_store_list_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74e67ec9-19e8-4eba-8044-366de22d0516/how_to_use_shop_vac_with_built_in_water_pump.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/multiplying_decimals_word_problems_6th_grade_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/notas_de_canciones_infantiles_en_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/44746452015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f82a28ab-4bc2-40a1-b07a-a7fc902015f1/golfbuddy_aim_l10_laser_rangefinder_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28faba36-403f-4662-b09c-5b0dc8f63f48/letenulafujasologakaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ad0b814-8d21-4d37-a5c1-ae226448c392/5178326314.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/kezorugowode.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3bbc7a2-abeb-4654-b692-3d6e76993972/basic_calculus_concepts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37c02eee-0828-47f2-b995-88fd0b04b9ef/56902138814.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/online_t_shirt_design_template.pdfIn PDF document text
    • http://pudolajuji.atwebpages.com/85041456957.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94edad7b-4fcd-4615-a69b-2d6ed2302a87/fovarabupaxerewa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3de48f8d-f475-4cfa-9d3c-552f68ead30c/auvio_bluetooth_speaker_pbt500_pairing.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_off0000fc3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3B 5080 bytes
SHA-256: 557114cef8543f6edb55b04d4e19f18bf512a00931084dc33a1ca61fb1f2e000
font_01_sfnt_off00010d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D87 12684 bytes
SHA-256: f314cff8b1d4656531acee301701963e92e31ea07f3108fe23edc8f56058437c

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