Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a613624fc2a69f6…

MALICIOUS

PDF

66.7 KB Created: 2021-03-05 12:05:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 18a1471074379f2b598496a623bdd34c SHA-1: 76f0e783034164ee930bcc9002da49325db7d0a8 SHA-256: 9a613624fc2a69f676c78d84db66c1621652914421d7b1e688060137559c7b89
126 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
  • 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://jacksth.ru/award?keyword=kenmore+front+load+washer+417+manual PDF link annotation
    • https://cdn.sqhk.co/lasanamemego/jgO9qib/38228935490.pdfIn PDF document text
    • http://mujabelor.mywebcommunity.org/75342740518.pdfIn PDF document text
    • http://zespodsvetkoy.site/brushless_permanent_magnet_motor_design_second_editionmpbyz.pdfIn PDF document text
    • http://fotubobuwenapu.scienceontheweb.net/44873438703.pdfIn PDF document text
    • https://nedamekiwuj.weebly.com/uploads/1/3/1/3/131379605/pimubel.pdfIn PDF document text
    • http://vanlit.ru/vascular_surgery_books_freelcyc5.pdfIn PDF document text
    • http://help-feedback-amzn3.xyz/formato_de_resguardo_de_equipo_wordnsaha.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/9fnOdEm/ftdi_driver_windows_10.pdfIn PDF document text
    • http://tublitalia.fun/koberikunutusixaryo7xu.pdfIn PDF document text
    • http://natural-shop.info/42537734590lpdt0.pdfIn PDF document text
    • http://epipog.com/955540492294t78w.pdfIn PDF document text
    • https://renudufodajofi.weebly.com/uploads/1/3/4/8/134884992/wotilavagi.pdfIn PDF document text
    • https://cdn.sqhk.co/liminekaj/idqgjfV/pewdiepie_minecraft_world_seed_pe.pdfIn PDF document text
    • http://missunik.space/mammography_screening_guidelineskf736.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jujobope.atwebpages.com/what_is_the_communicative_purpose_of_the_text_singapore.pdfIn PDF document text
    • https://fa90eb46-aa9b-4fd1-a2e8-e903ec8e50a4.filesusr.com/ugd/575fb0_0582a104c0c84ad987557ec219b03b6c.pdf?index=trueIn PDF document text
    • https://b03e51a8-7171-48c0-94d6-e4c032e6f37f.filesusr.com/ugd/9421c8_ca8c441d730f4a15abce2ed69e3df585.pdf?index=trueIn 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_off0000c766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC766 5428 bytes
SHA-256: f32826674784787815e954067a360188a8f90de5511d3e3a081547bb60a55e0c
font_01_sfnt_off0000d9d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D6 10432 bytes
SHA-256: b260a54133d2f0d1393271f18f8c14e0c6f4eaf9f49797cfb22d2df013e50505