Malicious PDF — malware analysis report

Static analysis result for SHA-256 6932ba3f4d9fba96…

MALICIOUS

PDF

68.4 KB Created: 2021-01-26 12:36:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 8958e20640f3e8d2909f1298fc8a9760 SHA-1: b1e1fba7428cdcb266cf21e2974ecc96eb676458 SHA-256: 6932ba3f4d9fba964561cba95ccc9174a44346c59f1fc487da4fc54e358ed99e
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are to unknown or potentially malicious domains, suggesting a link farm or phishing attempt. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URIs suggest it is designed to redirect users to malicious content or download further payloads.

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 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://jacksth.ru/123?utm_term=st+clair+county+alabama+parcel+search PDF link annotation
    • http://dkmz3.club/roman_empire_conqueredrtlwp.pdfIn PDF document text
    • https://dopozigixojak.weebly.com/uploads/1/3/4/5/134509916/77952106dd5.pdfIn PDF document text
    • https://tofibozuliven.weebly.com/uploads/1/3/1/1/131163910/3636199.pdfIn PDF document text
    • https://sufudoni.weebly.com/uploads/1/3/4/8/134853368/sowowanara-reropo-penoxalopipivuv-novigutaxiveko.pdfIn PDF document text
    • http://netzamka.ru/mesobuwakezizaxajip46ty.pdfIn PDF document text
    • https://bipipabogudas.weebly.com/uploads/1/3/1/1/131164499/xedatezojusip-lodewa-bakivupowalifa-veroxu.pdfIn PDF document text
    • http://fartook.online/kansas_gas_service_new_service7qo7b.pdfIn PDF document text
    • http://fovuvizoge.22web.org/20741480027.pdfIn PDF document text
    • https://lemitixodage.weebly.com/uploads/1/3/4/8/134868200/duzal.pdfIn PDF document text
    • https://bixuduserar.weebly.com/uploads/1/3/4/8/134861961/148285.pdfIn PDF document text
    • http://storeeu.info/61917444804y7pww.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/nitirew/states_of_matter_concept_map_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/panewafutapotatapakirofi.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/financial_reporting_automation_tools.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/salesforce_email_template_merge_fields_blank.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/free_online_blackjack_games_no_multiplayer.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/how_many_worksheets_for_kindergarten.pdfIn PDF document text
    • http://gijuvaginitawaz.epizy.com/clash_of_clans_th12_base.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_off0000cdd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD1 5520 bytes
SHA-256: 12e38929cdd18ff6cc9beb347a4ce7b8b448ba6ce084291b6b092bf593709464
font_01_sfnt_off0000e072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE072 10676 bytes
SHA-256: dc872f1944ca7093bf6a113afaa771f65483e94adc6410ebf2f706984310a2c3

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