Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bbbc061caf5da6…

MALICIOUS

PDF

94.2 KB Created: 2021-05-09 08:45:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: ebe3a1e69ff9ed77b8322aaf446ede51 SHA-1: d0229862e0a2434429c7692589bb25d528c1622b SHA-256: 88bbbc061caf5da6444c1d95f45e30563eb461f99b36c433f847a72a8b6cab67
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which are part of a link farm designed to direct users to potentially malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to compromised or malicious domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://xezojetit.ru/strik?utm_term=cyberpower+1500va+instructions PDF link annotation
    • http://finomimetafix.sportsontheweb.net/55286983178.pdfIn PDF document text
    • http://wozilimesiz.mypressonline.com/red_hot_chili_peppers_californication_guitar_tab.pdfIn PDF document text
    • https://jizufuvarax.weebly.com/uploads/1/3/1/1/131164460/fuwezowavekimiruzina.pdfIn PDF document text
    • https://guxewegitonis.weebly.com/uploads/1/3/4/3/134336720/sipafes_zeboliv.pdfIn PDF document text
    • http://sugalomiwuto.getenjoyment.net/sizukusamokiwad.pdfIn PDF document text
    • http://bidimiw.sportsontheweb.net/vaviduwigifesosomirebo.pdfIn PDF document text
    • https://maninuwag.weebly.com/uploads/1/3/4/5/134577581/f5e1be4a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faleferesevo.onlinewebshop.net/40132679488.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/are_delonghi_oil_heaters_safe.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/afterburner_fortnite_music.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/joxilovive.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/kosiwomu.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/ameritas_life_insurance_claim_form.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/sedexenivosivas.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/verbos_en_ingles_en_todos_los_tiempos.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/tintin_movie_2021.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/uk_work_permit_visa_application_form.pdfIn PDF document text
    • http://mixezized.myartsonline.com/antarctic_treaty_system.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/56575598747.pdfIn PDF document text
    • http://kurerori.myartsonline.com/ibps_exam_books.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/81589153870.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/pafelibagoveregapuli.pdfIn PDF document text
    • http://lazoxiro.onlinewebshop.net/19611322466.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC09 2928 bytes
SHA-256: ae0db769d7cc3c64beb9ce72a87fb786eb2097032341fbce79821b893470c4a6
font_01_sfnt_off00010688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10688 5512 bytes
SHA-256: 13ac65ff3ad19c5f0c723a9d560cb0fa5e5c58b39da64bab1d48913da0b0e0e7
font_02_sfnt_off0001196b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1196B 1768 bytes
SHA-256: e751d8e3d94765673feb947d2e024f4de79c462494e3090a5249f94602940d16
font_03_sfnt_off00012232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12232 14384 bytes
SHA-256: 76ed2f02698051529cbaf07e62ed0671713e06cb4d11c19d75980bd8e32c3274
font_04_sfnt_off00015176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15176 17032 bytes
SHA-256: acfa4518c6e87830c5dc5a23b857e5f9b64a160e9b7b29edfc962a88091bafbe

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