Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f84366ff9164966…

MALICIOUS

PDF

80.0 KB Created: 2021-04-03 12:13:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: da75d7575b1695ae67b0eb8dae68329d SHA-1: da6c424d23cc43277e7b638c4a55a7e07a54edd6 SHA-256: 2f84366ff9164966ff659a4f6121b211f73a62ccc7f29703fb176752bbe990a3
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 0.9991

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://leonvi.ru/strik?utm_term=amazing+spider+man+comics+worth+money PDF link annotation
    • http://getsol.xyz/crochet_beanie_for_beginners_step_by_stepyps7g.pdfIn PDF document text
    • http://tublitalia.fun/raymarine_e120_chartplotteribtko.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/7jc8Hih/petrol_station_finder_uk.pdfIn PDF document text
    • http://tacfitproducts.com/how_to_use_relion_blood_pressure_monitor_bp100zckjv.pdfIn PDF document text
    • http://moreprodukti.com/wimikadanabajbsq5y.pdfIn PDF document text
    • http://naturapple.space/916407864569ntj0.pdfIn PDF document text
    • http://gloslides.com/yard_machine_snow_blower_5.5_hp_24c5qu8.pdfIn PDF document text
    • http://priz24.site/phanteks_enthoo_luxe_caseou0hx.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/heahehe/vr_games_like_space_pirate_trainer.pdfIn PDF document text
    • http://stylecurtains.com/adaway_apk_without_root82c0g.pdfIn PDF document text
    • http://myluckybet.xyz/how_to_tone_arms_without_weightsaivhq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455178/normal_6056741e1cf95.pdfIn PDF document text
    • https://cdn.sqhk.co/noremixujor/hdjfr1p/dinosaur_hunt_free_dinosaur_games_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502336/normal_6056a93e12b2f.pdfIn PDF document text
    • http://moneymaya.site/mecanica_de_suelos_y_cimentaciones_crespo_villalazhse64.pdfIn PDF document text
    • http://woodlesenka.ru/82789138206csc44.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/ciiienz/drumsy_moxi_face.pdfIn PDF document text
    • http://graatorama.space/kokogalixep99kmt.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://8d684a1e-4078-49cd-b336-05adf09473b6.filesusr.com/ugd/2b25e8_208f5ad14d5c4b1dbad103c3dd3a8c57.pdf?index=trueIn PDF document text
    • https://24218389-b518-4ca3-8548-65eaf758daa4.filesusr.com/ugd/c836c3_95ed6ce6e67e49078c53133c01b5a6dc.pdf?index=trueIn PDF document text
    • https://37976aa0-f55f-47d3-847a-8d185b13ebf6.filesusr.com/ugd/1d6212_80e97fd334af4d01939d5259cd264eea.pdf?index=trueIn PDF document text
    • https://94e55d9a-ad7c-4b6b-a54a-a00202ad3087.filesusr.com/ugd/208fd7_cd123584a1874302942e389268497db9.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE3 5476 bytes
SHA-256: 189e9171e5289dbd51aa213e8c2ac5134155ccaa65e64f9ee8123514b212f958
font_01_sfnt_off0000fd68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD68 11432 bytes
SHA-256: 93ea45d9cd1c765883cde377ef5a01137529cf7864be2e37da7ace7b269c5769
font_02_sfnt_off00012402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12402 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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