Malicious PDF — malware analysis report

Static analysis result for SHA-256 b60b9a74b2dd963c…

MALICIOUS

PDF

72.0 KB Created: 2021-01-29 20:08:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dad2d776587e82f66fdf44748e05f1d4 SHA-1: 570f08530901c5e54a3d27a5a3a083d79e9b54b8 SHA-256: b60b9a74b2dd963c723d82d572b22bd0bb8b590e9d6128cbf004a6cc6261f736
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wb?keyword=solitaire%20set%20up%20and%20play PDF link annotation
    • https://gozaxuvo.weebly.com/uploads/1/3/4/6/134612917/xevoresegovoj.pdfIn PDF document text
    • http://shop-onlinediscount.xyz/47188883373saggq.pdfIn PDF document text
    • https://vepakuwaderim.weebly.com/uploads/1/3/4/6/134699920/nosinutulamiroxoz.pdfIn PDF document text
    • https://cdn.sqhk.co/dopiporajen/hjbgcMX/luvaxevoreruga.pdfIn PDF document text
    • http://xbet1.fun/paz_mental_tornar-se_completamente_presentedbdk5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482629/normal_600bab31f0d8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480408/normal_5fe08623578a2.pdfIn PDF document text
    • https://vonepegoparopew.weebly.com/uploads/1/3/4/3/134352316/9967736.pdfIn PDF document text
    • https://cdn.sqhk.co/dasulujina/Gihhagh/96658275053.pdfIn PDF document text
    • https://denudosija.weebly.com/uploads/1/3/4/0/134017010/1077184.pdfIn PDF document text
    • http://immorta-cross1.club/sogilusomz3pns.pdfIn PDF document text
    • http://1xbet-sportstavki.fun/peguweparwiy3.pdfIn PDF document text
    • https://cdn.sqhk.co/fexonawizoz/bgehgX7/77722683008.pdfIn PDF document text
    • https://cdn.sqhk.co/losokifape/ZhdhdWH/57660495433.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/world_economic_forum_gender_equality_report_2017.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000de8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8E 5156 bytes
SHA-256: 63e9f334d67741b3701402f8646fec7f1881e83488bf4a3a64ed122baabf794e
font_01_sfnt_off0000f02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02C 10244 bytes
SHA-256: bda7bee473b5d4e5219e7e5e42ba3fe970c3d2ea20b8804a22a5b58b184ff085