Malicious PDF — malware analysis report

Static analysis result for SHA-256 2909b08da5d9e712…

MALICIOUS

PDF

75.9 KB Created: 2021-02-26 03:42:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a621e2e2eb10f0a2408c0e7718fed0f5 SHA-1: d94b6e0d411e4856917f3f37001633914ac3ecfd SHA-256: 2909b08da5d9e7129c2c6e3df3ae15042087faf9f750b7ceba60c204b29610ec
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs pointing to disposable domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for distributing further payloads or conducting phishing operations. Although no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of a malicious document designed to redirect users to potentially harmful sites.

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
  • 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/wix?keyword=anis+del+toro+meaning+in+english PDF link annotation
    • http://lizoguxumugef.mywebcommunity.org/rivotigivuj.pdfIn PDF document text
    • http://pedumerik.sportsontheweb.net/xawovutezo.pdfIn PDF document text
    • http://nokasosozigof.mypressonline.com/69233769859.pdfIn PDF document text
    • http://kinemulawaw.sportsontheweb.net/89340168734.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/koxifiwev.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/what_is_the_standard_enthalpy_change_of_combustion_of_al2s3.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/how_to_drain_swamp_cooler_for_winter.pdfIn PDF document text
    • http://tosefabebiribow.scienceontheweb.net/jowilowefatej.pdfIn PDF document text
    • http://rawoxaxevog.mygamesonline.org/how_long_does_it_take_for_an_atomic_clock_to_set.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/netgear_wnr3500lv2_review.pdfIn PDF document text
    • http://robugipunebib.mygamesonline.org/81863257129.pdfIn PDF document text
    • http://xodaxedepapopox.mygamesonline.org/19677936697.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/73108552300.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/dipivixudekoziriderejinum.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/craftsman_13_planer_parts.pdfIn PDF document text
    • http://wamuwosola.mygamesonline.org/fofelopusasizokikugu.pdfIn PDF document text
    • http://siviveko.getenjoyment.net/xusizadedoxubajiwezumawem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vubelifijam.atwebpages.com/merulilejujiritomanizo.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/xoranupudezodelupaliliwas.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_off0000eda4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA4 5228 bytes
SHA-256: bac72aec7aa7b7c849a74622ddfe46f9a1d87d234209a65ec503544f0a83eb88
font_01_sfnt_off0000ff39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF39 10224 bytes
SHA-256: 5bb7f777eb13922453b6f996764907b1b9ded79c62c471d7d02f62c4ef0b2090

Open this report in the interactive analyzer, or submit your own file for analysis.