Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0fa1aa12907c458…

MALICIOUS

PDF

73.8 KB Created: 2021-05-20 08:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 1da0c60071cbc45e9b916bf01a13142d SHA-1: 05ab92dced5c44ba6ed3ea4444b305472d1c8e44 SHA-256: d0fa1aa12907c4589df55e4fa92e3e130b1ee057add1baaf415fa42e61a31c06
156 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm designed to obscure malicious destinations. The document body, though partially corrupted, contains a lure related to downloading software, aligning with the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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://midufefew.ru/strik?utm_term=how+to+download+wwe+2k20+for+android PDF link annotation
    • https://balawuwugo.weebly.com/uploads/1/3/4/6/134622143/xojefuzemef.pdfIn PDF document text
    • https://wedarudojov.weebly.com/uploads/1/3/4/0/134012757/musexeduzik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_603bfd8ce2432.pdfIn PDF document text
    • https://genofegewad.weebly.com/uploads/1/3/0/7/130776157/393754.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_604f766493a53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473890/normal_6058442ce6064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408333/normal_6019730a6f3a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422640/normal_5fcad21125ded.pdfIn PDF document text
    • https://kufudazasa.weebly.com/uploads/1/3/4/6/134626120/wuwago-xadepunirudobe-bijikiv.pdfIn PDF document text
    • https://wugizagopa.weebly.com/uploads/1/3/5/3/135311922/9904868.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473415/normal_5fdfd65164f16.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/kokesatodixon/39787943278.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dd5c371-7e02-4222-a078-3cac42154e87/tv_panasonic_viera_42_plasma_review.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/murigawizapagojufudikibiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14a0c3e9-4130-405c-a6c5-d32e50dcb3ce/maritime_lawyer_salary_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/asus_zenfone_software.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/stock_ageing_report_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/zibuvewizamofexod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2c63375-8d88-4ac9-a7c6-c1a68bcc28d2/data_structures_and_algorithm_analysis_in_c_4th_ed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7de91486-5ebe-47b2-9a3a-ab36209bd1ba/nuzifazewiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fbf604e-d0a3-4dcc-a1a0-c7ae754376ef/hp_officejet_7612_wide_format_e-aio_printer.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/adobe_photo_scanner_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_off0000e42c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE42C 5112 bytes
SHA-256: 17d32de6cdb969d7ca8650e935a157a7e6589c452e8461bcadb97426f5177d5a
font_01_sfnt_off0000f5b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B4 10608 bytes
SHA-256: 95a616f05d55c0a35e8b3772f3e33b2296b58f4fa546c5e01f4b692acc71cfef

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