Malicious PDF — malware analysis report

Static analysis result for SHA-256 683ce94181add913…

MALICIOUS

PDF

70.6 KB Created: 2021-02-21 14:17:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 28ea568bedb08eaacad9f76ab50d5b05 SHA-1: e0c6a659d16ef47242d3e0ce12580d23e8d1e27a SHA-256: 683ce94181add913acaf9e83967715d59ce200f623806e422ae2c84ed882af64
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/aws?utm_term=ipad+air+2+vs+ipad+mini+4+release+date PDF link annotation
    • https://cdn.sqhk.co/julukiporo/GZU5vhf/fepazogofapixelazisedide.pdfIn PDF document text
    • https://cdn.sqhk.co/dederubap/jacIIuT/19411514918.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/iiidS6e/83574151500.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483623/normal_602a188920e45.pdfIn PDF document text
    • http://italiabeach.space/lemulevyp3yx.pdfIn PDF document text
    • https://cdn.sqhk.co/laripikiwafo/gMrmWtw/68357776249.pdfIn PDF document text
    • https://cdn.sqhk.co/sebazisop/cEghhhd/light_up_keyboard_and_mouse_wireless.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462056/normal_601f875b0f887.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390659/normal_5fe0b67490ab8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484380/normal_5fe4e53e5b301.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/tipikaxe/52411445587.pdfIn PDF document text
    • http://nabunuwo.epizy.com/wondershare_free_32_bit.pdfIn PDF document text
    • http://sirilamezowi.epizy.com/3ds_max_2017_keyboard_shortcuts.pdfIn PDF document text
    • http://ruriwujuvuwa.epizy.com/21202209499.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/wepalukowe.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_off0000d642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD642 5324 bytes
SHA-256: 3bfb521ef18929faf34dd14eecddd157e6f86e0ffc9030687514288e76ff58d5
font_01_sfnt_off0000e84b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84B 10944 bytes
SHA-256: e28f9705bc8e168fdfa80da18dc626a7aa6f633a0157142aa9a0bce94d848c1f