Malicious PDF — malware analysis report

Static analysis result for SHA-256 182107895d303acd…

MALICIOUS

PDF

67.7 KB Created: 2021-02-17 18:41:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4b43b69897d78e6992585cd2e9383c3d SHA-1: 8906b6637545a7bd8bad8aaa5defb3087bcb4a34 SHA-256: 182107895d303acd81e29c469fba9ed498d154222e6a8a7e8f84106106c152cc
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://yafferge.ru/strik?utm_term=orbit+58910+2-outlet+programmable+hose+faucet+timer+manual'. This URL is likely used to deliver a malicious payload or phish for credentials. The ML classifier also strongly flagged this PDF as malicious, and ClamAV detected it as 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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/strik?utm_term=orbit+58910+2-outlet+programmable+hose+faucet+timer+manual In PDF document text
    • https://cdn.sqhk.co/difixoruze/fGjcwjg/daberekodurobereba.pdfIn PDF document text
    • https://cdn.sqhk.co/gugirejol/nhbhhhh/31404580338.pdfIn PDF document text
    • https://cdn.sqhk.co/namemedoxake/IohdNii/regulomi.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/8gjhezV/wevewafe.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/mhcRiab/wesafirivolu.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/gjiMjjJ/78194257409.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/vihiiTB/rolling_sky_level_14.pdfIn PDF document text
    • https://cdn.sqhk.co/kejaxedusuk/Woicith/karufomujowonip.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/i9KNzif/guleparumekixamasozox.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/kopisigapub/74598402991.pdfIn PDF document text
    • http://pewijaxenutudum.rf.gd/alone_wallpaper_images.pdfIn PDF document text
    • http://xubaforan.epizy.com/20208789256.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/weather_report_big_bear_mountain_ca.pdfIn PDF document text
    • http://pumejusatojajeg.rf.gd/paracetamol_overdose_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/antivirus_android_terbaik_dan_ringan.pdfIn PDF document text
    • http://midabufab.rf.gd/namestie_svatej_alzbety.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/invitation_for_company_dinner_template.pdfIn PDF document text
    • http://jezuwujitek.epizy.com/taptap_heroes_progression_guide.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC708 6428 bytes
SHA-256: cc3b1d9add36ff3513ff5490eb94b30f7f53539071d2a2061d49d3ccba5dea95
font_01_sfnt_off0000dcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC2 10708 bytes
SHA-256: f5faba5ea552c3d7515e56eeb12308602209ff3bb471c1355e685d70ec183d39

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