Malicious PDF — malware analysis report

Static analysis result for SHA-256 57db51b6f568de7c…

MALICIOUS

PDF

70.5 KB Created: 2021-03-07 08:25:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 07d7593b5aabb504ac4e81d27558d8bf SHA-1: 72901dbc6df9f95bde9615e3f35c98939b617281 SHA-256: 57db51b6f568de7c49abe7e598a12ae09b32a6e61b428e778645f4f364f4f082
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://botokaw.ru/award?keyword=orthopedic+physical+assessment+magee+6th+edition+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/digiwejasipu/c3iisgc/wajuwaruxi.pdfIn PDF document text
    • https://cdn.sqhk.co/tatonabufule/mvhcHR4/download_game_gta_liberty_city_stories_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jukelifawap/ghvjiGL/football_crowd_noise_sound_effect.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/QahfIhf/bandpass_filter_transfer_function_formula.pdfIn PDF document text
    • https://cdn.sqhk.co/keridola/wjeiagj/3d_music_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473403/normal_5fffc1f5a518a.pdfIn PDF document text
    • https://cdn.sqhk.co/zijigemeworu/HqhdjdJ/diverse_meaning_in_arabic.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/casio_fx-9750gii_differentiation.pdfIn PDF document text
    • https://katesagi.weebly.com/uploads/1/3/4/8/134864962/vinizaviniliro_guxirutesi.pdfIn PDF document text
    • https://vibofigejud.weebly.com/uploads/1/3/0/7/130740502/1907361.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476783/normal_5fd0e494491e2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407552/normal_5fcf06016e8d0.pdfIn PDF document text
    • https://vesixogis.weebly.com/uploads/1/3/4/8/134863987/8a646c3140.pdfIn PDF document text
    • https://cdn.sqhk.co/xojelumegasi/P1Rje5s/dozukiponilologetito.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/xapijifas/winter_swimming_pool_maintenance_guide.pdfIn PDF document text
    • http://sajatuvireguta.atwebpages.com/visual_basic_2008_tutorial_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/148821142.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_off0000d2c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C1 5944 bytes
SHA-256: 8077d760aca7bb5dccb60a68dbe3e186656e195c8652cba28981166e2473be0d
font_01_sfnt_off0000e6ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EA 11476 bytes
SHA-256: 34e94066962fb1ab1110d769f4a8c54278fd87aae8278c943b5f888b7941a926

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