Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c0578f9977390ba…

MALICIOUS

PDF

66.4 KB Created: 2021-03-03 20:12:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f6419999791290b4f89aa0708f207a24 SHA-1: 3d8a57d463987828421dd582f6f8aae027ffa7db SHA-256: 9c0578f9977390baa0a6ba62d739759008dee95d11e55bbfb79dbe6ea77d6997
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://jottigo.ru/wix?keyword=fnaf+world+apk+download+update+2 PDF link annotation
    • http://retapobu.iblogger.org/lopujumukodorupowu.pdfIn PDF document text
    • https://mutuvedaluvop.weebly.com/uploads/1/3/1/8/131856278/286231.pdfIn PDF document text
    • http://dalosizofovabes.medianewsonline.com/how_to_install_operating_system_on_hp_pavilion.pdfIn PDF document text
    • https://zajuzuvo.weebly.com/uploads/1/3/4/4/134474050/73148.pdfIn PDF document text
    • http://ledoxune.22web.org/which_of_the_following_accounts_would_be_included_in_a_post-closing_trial_balance_chegg.pdfIn PDF document text
    • https://tumafikajenama.weebly.com/uploads/1/3/5/3/135326798/7493801.pdfIn PDF document text
    • https://takogazaka.weebly.com/uploads/1/3/4/0/134017011/wejuzanut.pdfIn PDF document text
    • http://vowitufafuzebil.scienceontheweb.net/how_to_know_if_you_have_a_pimple_scar.pdfIn PDF document text
    • http://waferaboteb.mypressonline.com/clasificacin_de_cuentas_deudoras_y_acreedoras.pdfIn PDF document text
    • http://dipazekonowa.mypressonline.com/82845379543.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/42330636278.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/zalomi/install_adobe_premiere_pro_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/brain_abscess_treatment_guidelines_idsa.pdfIn PDF document text
    • http://febiked.rf.gd/lezorasefigepazuxonuze.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/sony_wireless_stereo_headphones_mdr-rf985rk.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_off0000c689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC689 5100 bytes
SHA-256: 7bcf5ff9ae08bfd6512f6248c11e015c4826754d1a818f5a32842998636c8465
font_01_sfnt_off0000d810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD810 10820 bytes
SHA-256: f3b810d37adf8d75ef9a2a71a205bf8ce7b725aa920985443835e7f77a898088