Malicious PDF — malware analysis report

Static analysis result for SHA-256 2685febc625e72c1…

MALICIOUS

PDF

69.4 KB Created: 2021-02-08 14:54:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0817832cdb148da95a31bde891e7d2ab SHA-1: 53f8e94651daea0165e1d5a10ea43f30e06f615f SHA-256: 2685febc625e72c15a8f564257acf117a3c4574b2c3a6f369732970ebd5448fb
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/aws?utm_term=attahasa+kannada+full+movie PDF link annotation
    • http://boost-store.net/hakuouki_anime_english_dub_episode_302xzo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423430/normal_5fd9bcb9d2998.pdfIn PDF document text
    • http://jogemijafiw.22web.org/picsart_photo_editor_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428083/normal_5ffd2f7b0d614.pdfIn PDF document text
    • http://nikaold.site/4116756689267hdf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465403/normal_600fe1e68cae8.pdfIn PDF document text
    • https://cdn.sqhk.co/juzurupivepo/igheidM/idle_tap_strongman_mod_apk_android.pdfIn PDF document text
    • http://xovuwut.iblogger.org/62395857875.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rinexaxar.rf.gd/zefudelataxasivunuzase.pdfIn PDF document text
    • http://pavinudoj.epizy.com/lock_out_tag_out_procedures_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/aimersoft_music_recorder.pdfIn PDF document text
    • http://vejesigivilowen.rf.gd/the_metaphysical_poets_by_ts_eliot.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/gwinnett_tech_accuplacer_study_guide.pdfIn PDF document text
    • http://satekivu.rf.gd/capacitor_value_calculator_apk.pdfIn PDF document text
    • http://kodadus.epizy.com/chamakte_chand_ko_lyrics.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_off0000d386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD386 5164 bytes
SHA-256: 1c1905de149725cddd99925a345f8685380d0ae4ad4901d55737bc5c059d3523
font_01_sfnt_off0000e4fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FE 10648 bytes
SHA-256: 296026a4fa97ab58333463c35648e2c79cf5f391a7a97f31b739ccd395d1ffe1