Malicious PDF — malware analysis report

Static analysis result for SHA-256 d58223af2e06d993…

MALICIOUS

PDF

69.6 KB Created: 2021-05-21 20:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: dff27c0323e28a9ec3ddea58bfee5e2e SHA-1: def560cf74f7cc90adfa1551a0d230074ba0c717 SHA-256: d58223af2e06d993949eafad19fcacfae4a39d763c2d05beda4be203441c233c
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a large number of external links, many of which are SEO-optimized, suggesting a link farm or phishing attempt. The primary URL, 'https://crophysi.ru/strik?utm_term=how+to+connect+my+vizio+sound+bar+to+my+tcl+tv', is presented as a search result to trick users into clicking. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://crophysi.ru/strik?utm_term=how+to+connect+my+vizio+sound+bar+to+my+tcl+tv PDF link annotation
    • https://dukilasurijase.weebly.com/uploads/1/3/2/8/132815907/1049019.pdfIn PDF document text
    • https://vapukukoson.weebly.com/uploads/1/3/0/7/130776878/3591291.pdfIn PDF document text
    • https://zamosokajuzosa.weebly.com/uploads/1/3/4/6/134651904/777bbcf.pdfIn PDF document text
    • https://setopotuvojinow.weebly.com/uploads/1/3/4/8/134877086/zudafodozow_divameterek.pdfIn PDF document text
    • https://semuzotefol.weebly.com/uploads/1/3/1/4/131437619/zavuguf-somet-jezafu-narolanomir.pdfIn PDF document text
    • https://dojufewuwi.weebly.com/uploads/1/3/4/2/134235401/wesisekulukifenade.pdfIn PDF document text
    • https://xewaxamuroz.weebly.com/uploads/1/3/4/5/134529724/magaketoj-domek-jaduxatuxiregi-gamujikatenol.pdfIn PDF document text
    • https://togezajotutev.weebly.com/uploads/1/3/0/8/130874352/lulojunelagugoj.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/xidazeze/amma_nagamma_audio_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/jasper_report_default_font.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/suxonenixes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b22b281-f1f3-4a0d-97cb-ec6fb48f60c9/clasificacion_del_derecho_publico_y_privado.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/rajamifawesezituselamez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a336d590-5145-4e78-9d55-51e50a075dab/39584352270.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc154631-1eed-4d03-afdc-5ba16886ccfe/zenith_transoceanic_royal_7000_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d66f51b4-db3e-4761-862d-61fd556193d9/games_to_play_with_kindergarten_on_zoom.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/foraliganitaniradi.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/minimalist_app_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41b25d6b-b6e6-41b4-844e-bfd03ea21bcf/great_electric_guitar_songs_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/410c98a2-f6a7-4a6b-9bcb-d1ba260394f9/38801533273.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/super_booster_apk_full.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_off0000d41c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD41C 5492 bytes
SHA-256: edcbd8330bbf5f31bc6a3ea6d69f9e59e19e0f9e47b16d4c32f9f477a7fdf47e
font_01_sfnt_off0000e6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CE 10032 bytes
SHA-256: 97a9aef76f0c0a136c9ead1c8cefd7a25b742e4da81a75e3b71f87caccffa021

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