Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcf1e4f5434c219d…

MALICIOUS

PDF

73.2 KB Created: 2021-01-28 14:19:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a6b255e2822cc7361e6e9b7d1b2562ad SHA-1: faba25c6a163410a1c1633f4ee917fe57282f2ef SHA-256: dcf1e4f5434c219d15a7705cbb47a92f726b0b06d2ace126d04b18215b2609e4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wb?keyword=hungry%20shark%20evolution%20money%20hack%20download PDF link annotation
    • http://jumbochecker.com/sakugubumaruxenegimelam3e89b.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/gcNjeih/whispering_pines_rv_park_silver_springs_fl.pdfIn PDF document text
    • https://weritesi.weebly.com/uploads/1/3/5/3/135314652/2366173.pdfIn PDF document text
    • https://vizedaxitexoter.weebly.com/uploads/1/3/4/7/134740617/ebeda0ae.pdfIn PDF document text
    • http://mscgis.net/25597227379jsviv.pdfIn PDF document text
    • https://butevexonukuzi.weebly.com/uploads/1/3/2/6/132681970/sitav_rowisas_kedidom_musupuga.pdfIn PDF document text
    • https://ravaratu.weebly.com/uploads/1/3/5/4/135401011/begijamujosexokog.pdfIn PDF document text
    • http://aycotoro0.xyz/walizoxarikagemodaxinupedrwdak.pdfIn PDF document text
    • https://zipixaxunisegon.weebly.com/uploads/1/3/4/6/134625234/2745204.pdfIn PDF document text
    • http://itverys.space/wogepakesewavamorutaxhb1x.pdfIn PDF document text
    • https://manasuma.weebly.com/uploads/1/3/0/8/130873954/3861067.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kebanibaru.epizy.com/aladdin_cartoon_arabian_nights_mp4_song.pdfIn PDF document text
    • http://xagejedidupomup.rf.gd/50360377489.pdfIn PDF document text
    • http://tikokowekujuw.epizy.com/starbucks_iced_green_tea_nutritional_information.pdfIn PDF document text
    • http://xozelabudizi.epizy.com/gopoxebowano.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_off0000dbd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD6 5632 bytes
SHA-256: b72434ac814c1c3200eecb375ade60ce40ae91931b5a259bb0056a3db96f198f
font_01_sfnt_off0000eeeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEB 13052 bytes
SHA-256: e3036724368b3e5ccbf16c5e8e7b8de74787f8c057f338772c2bad2b3a20d7d5