Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad2967fb561d5adf…

MALICIOUS

PDF

64.1 KB Created: 2021-02-22 09:44:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5ed84b8a6a26a4d386734aa5a11c11a9 SHA-1: a125169ef849e0d00d278e23dc78995fabeef665 SHA-256: ad2967fb561d5adf15fd7c1a28fd14b09e5ef1e57bb94ddd6a9b6b4752fc3302
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=berenstain%20bears%20full%20episodes%20online%20free PDF link annotation
    • https://garituba.weebly.com/uploads/1/3/4/3/134335889/wazigelivojapafiki.pdfIn PDF document text
    • http://wiinorama.website/rusosunigulofulvrbd.pdfIn PDF document text
    • http://creditscorehelp.info/23860648436lo8d6.pdfIn PDF document text
    • https://pafabori.weebly.com/uploads/1/3/5/3/135317136/de201a2eda.pdfIn PDF document text
    • http://robot3.site/14249466012oug1s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479905/normal_5fc9d6a393cd0.pdfIn PDF document text
    • https://tamaxanafe.weebly.com/uploads/1/3/1/8/131856242/8158906.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481397/normal_5fe7942d6c5ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413969/normal_603094c830a8b.pdfIn PDF document text
    • http://fewemika.66ghz.com/addition_of_integers_free_worksheets.pdfIn PDF document text
    • http://ig-about.net/55236999813j3a3u.pdfIn PDF document text
    • https://kefileke.weebly.com/uploads/1/3/5/3/135392356/sekom_fapamerex_bunaredupanej.pdfIn PDF document text
    • https://bimozasobo.weebly.com/uploads/1/3/1/3/131398313/865419.pdfIn PDF document text
    • http://goodsfor.life/margherita_flatbread_cheesecake_factory_caloriesgkwys.pdfIn PDF document text
    • https://gavibokilixebil.weebly.com/uploads/1/3/4/7/134716725/6977562.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nuzabasere.rf.gd/47361749381.pdfIn PDF document text
    • http://sebafasoro.epizy.com/tejaxufup.pdfIn PDF document text
    • http://zusewijoje.epizy.com/donation_thank_you_letter_template.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_off0000bb4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB4C 5224 bytes
SHA-256: 9ae2cede2d1fe9722c0886b04d2189d96db686b5142551e12e413a73c295ccf1
font_01_sfnt_off0000cd14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD14 10696 bytes
SHA-256: 1bcbc250557db1ab5d5c752bb087835d68996190f580ed8f97e2bbac25687ae7