Malicious PDF — malware analysis report

Static analysis result for SHA-256 8134d4bd8dbcd642…

MALICIOUS

PDF

66.2 KB Created: 2021-02-27 07:37:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b7516cef12e27bccff506c9d969b1290 SHA-1: 4952f6870347cc7bcf13542b7ea72fe4942bb6f4 SHA-256: 8134d4bd8dbcd64222e8718eb682f04175e1985cecbb28a2c8e8ffe02861d0b8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=label+parts+of+the+ear+worksheet PDF link annotation
    • http://todayit.pro/xuwowg2s7n.pdfIn PDF document text
    • https://pukokisawar.weebly.com/uploads/1/3/4/7/134749025/zetesenekivunupix.pdfIn PDF document text
    • https://momigetufi.weebly.com/uploads/1/3/4/8/134876151/5193598.pdfIn PDF document text
    • http://galosidijixiwu.mypressonline.com/28105440579.pdfIn PDF document text
    • http://best-store.club/winner_soccer_evolution_hack_mod_apkeledh.pdfIn PDF document text
    • https://sudarotabodubig.weebly.com/uploads/1/3/1/4/131407445/e18764fba95e0f.pdfIn PDF document text
    • http://geosen.net/troy_bilt_2410_spark_plug_wires8isy.pdfIn PDF document text
    • http://wojisub.mypressonline.com/2003_ford_focus_zx5_review.pdfIn PDF document text
    • http://mabay.fun/comma_exampleslbaka.pdfIn PDF document text
    • http://idealica-ufficialeitalia.website/hola_music_guitar_lessons353lc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366401/normal_5fde9170accb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483361/normal_603649b34204e.pdfIn PDF document text
    • http://agent-ritual495.online/main_tenu_samjhawan_ki_arijit_singh6pskg.pdfIn PDF document text
    • http://testvvd.xyz/taco_bell_chicken_chalupa_calorie_count52y5b.pdfIn PDF document text
    • http://reetodo.online/wodojiranvh3t5.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/gurafoga/nugajatapagudedo.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_off0000c5e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E2 5228 bytes
SHA-256: 17df61aa754aa9559cdd8caf13abb5f78c10015d4304f862f7d8cbda3bfa94be
font_01_sfnt_off0000d7b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B3 10100 bytes
SHA-256: 8b2ba40229589787112b8d740057981de10ddaa1ebd630c4b170de6e4be56815