Malicious PDF — malware analysis report

Static analysis result for SHA-256 715e60b64e1b5065…

MALICIOUS

PDF

74.9 KB Created: 2021-02-15 10:14:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: bc2e072f35b0f64257b7148dce2d49d1 SHA-1: 373a9caf0c1645fbc981c60178be476ec0d546da SHA-256: 715e60b64e1b50657396c8fabaccf21da0ffca272d4706af4583b3ac6a583b3b
126 Risk Score

Malware Insights

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

The PDF contains multiple external URIs, with one specifically appearing as a search result for 'Bahubali background music free telugu'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is designed to host numerous links on disposable domains, suggesting a phishing or malware distribution scheme. ClamAV detection and ML classification further confirm its malicious nature, likely as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/aws?utm_term=bahubali+background+music+free++telugu PDF link annotation
    • http://fortuneocredit.com/11743623358i6dyy.pdfIn PDF document text
    • http://mrt36.ru/vowamasijasoxatojakobtk1z3.pdfIn PDF document text
    • https://movabeze.weebly.com/uploads/1/3/0/8/130814110/7052511.pdfIn PDF document text
    • https://lepatoketi.weebly.com/uploads/1/3/4/7/134732542/zulexidipekaraloz.pdfIn PDF document text
    • https://cdn.sqhk.co/midipumep/Njbighj/3389526033.pdfIn PDF document text
    • https://dezijetide.weebly.com/uploads/1/3/4/8/134864221/gabofonolisexo.pdfIn PDF document text
    • https://gifaxopolipo.weebly.com/uploads/1/3/0/7/130739444/6c97b6d.pdfIn PDF document text
    • http://copyright-help-center.com/6189882937opixm.pdfIn PDF document text
    • https://radolawijukigi.weebly.com/uploads/1/3/5/9/135992833/refag.pdfIn PDF document text
    • http://erogan24.website/navodaya_9th_class_admission_form_2020l8lyk.pdfIn PDF document text
    • https://mitenipup.weebly.com/uploads/1/3/4/3/134363071/xumadoxi.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/xokebore/honeywell_thermostat_owners_manual_rth221b1000.pdfIn PDF document text
    • http://talakukatutevib.epizy.com/61608894787.pdfIn PDF document text
    • http://pijularof.epizy.com/wajesiriwifatibadimasufof.pdfIn PDF document text
    • http://vetavewolo.epizy.com/biology_terms_dictionary_apk.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_off0000e7ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AB 5688 bytes
SHA-256: e8b892fb7c0be3100d6c75a18f3fb35254ba999e8ebffb5518dba8067976c64e
font_01_sfnt_off0000fad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD7 10600 bytes
SHA-256: 6ab72866eba9237ae9600934536ea070cb5e1cab0cc2f92668bfd6131e52b998

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