Malicious PDF — malware analysis report

Static analysis result for SHA-256 01513ea378a57228…

MALICIOUS

PDF

66.5 KB Created: 2021-02-02 01:33:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: d804a233aa9eb00a6a0d113b8ecb994f SHA-1: 564e3681e668fdc1b6736832b1c451adb20df59f SHA-256: 01513ea378a57228fb7c8411ed5ffe61af3d9f0b94504638d075e141c220a68d
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/aws?utm_term=articles+of+organization+virginia+template In PDF document text
    • http://putinoid.ru/lejawejarurawifetepbgvo.pdfIn PDF document text
    • http://tuimag.ru/lala_ramswaroop_calendar_2020_download_freef67pu.pdfIn PDF document text
    • http://shmelev.pro/37864755653m1yjh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378170/normal_600a81cd69eb7.pdfIn PDF document text
    • https://litazotivov.weebly.com/uploads/1/3/0/7/130740097/pitilid-taborer-jugipa.pdfIn PDF document text
    • https://raxokada.weebly.com/uploads/1/3/1/4/131409035/tunodiburezarobu.pdfIn PDF document text
    • http://unosital.space/jiruvij487b2.pdfIn PDF document text
    • https://gipimosikiji.weebly.com/uploads/1/3/5/9/135963651/rabelifetif-jexojeto-tipujagi.pdfIn PDF document text
    • http://magnitoli-2ekran.site/programa_fiestas_benicarlo_2019w2x5z.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/lurutopobi/dfe_benchmarking_report_card_2018.pdfIn PDF document text
    • http://tobesonev.rf.gd/22366110373.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/wanuvekutisaju.pdfIn PDF document text
    • http://xaxotatizomeno.rf.gd/8485775370.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/vixatagisalajaweluguf.pdfIn PDF document text
    • http://rixuzomobe.epizy.com/animation_creator_software_for_pc_free.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_off0000c899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC899 5432 bytes
SHA-256: c285cfda894dd863562a3d4b466c78f6bbe3746cf9ab0bb61a603c46f254444a
font_01_sfnt_off0000db18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB18 9968 bytes
SHA-256: e911c4890443d4ce0040978e2c76fc23ec5fbe18ed98ede6cd774fac77b73ebb