Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e5ee0013db744d9…

MALICIOUS

PDF

68.5 KB Created: 2021-02-23 11:51:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 603a81952b52c8c851e0d482dfea7320 SHA-1: 897aece9aabea46f90d34a68d8b1565304b49832 SHA-256: 6e5ee0013db744d9590fb06bd6b4355517fdcf03af7a07071d4332b5a0f1c53a
186 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/aws?utm_term=why+is+the+spinner+on+my+roomba+not+working PDF link annotation
    • http://copytoshka.ru/clip_studio_paint3ftrt.pdfIn PDF document text
    • http://xinupavob.iblogger.org/12063418634.pdfIn PDF document text
    • http://instacopyrighthelpteam.com/augmented_reality_introduction4qs66.pdfIn PDF document text
    • https://gekirexuwiri.weebly.com/uploads/1/3/1/4/131452917/0bc7c12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413867/normal_5ff7fe423396e.pdfIn PDF document text
    • https://lesesagipamagaz.weebly.com/uploads/1/3/0/7/130739561/3688646.pdfIn PDF document text
    • https://jurisosisirebak.weebly.com/uploads/1/3/6/0/136086550/xiviwemog_beniter_topenep_muwirew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389084/normal_5ffddef0b11f1.pdfIn PDF document text
    • https://fenibelamej.weebly.com/uploads/1/3/4/4/134464240/kedejutavalomozi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415767/normal_601b7e57ba214.pdfIn PDF document text
    • http://mukoxadetovewo.66ghz.com/lurutorokajitupobam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405459/normal_5fe9b61e015c0.pdfIn PDF document text
    • http://gnoogle.site/change_lock_screen_wallpaper_marshmallowtt5cb.pdfIn PDF document text
    • https://dugigezulafi.weebly.com/uploads/1/3/4/8/134898894/fajexigifafoj_loruzokowi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kufekamulez.rf.gd/wovolitub.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_off0000cd4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4A 5612 bytes
SHA-256: cb846028024df312a0f72dce83b6dcee053cc10184cbff3a245a491509287e2f
font_01_sfnt_off0000e055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE055 10756 bytes
SHA-256: 4ad901972d7fc7c28f4757bddd8b3120eb7309ed793506a7e0462b937ff3cdad