Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d09fc17dee59bf1…

MALICIOUS

PDF

76.6 KB Created: 2021-05-19 07:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 10298c8e8c00cd00ac7920ae61a39283 SHA-1: 6adc6b10f9f73528a03bee83098081feeea077d4 SHA-256: 1d09fc17dee59bf1aeee248a9de57dd87d29c15d764e81a5aee5998dc0d19b01
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with a critical heuristic identifying a link farm. The primary external URI points to a URL that appears to be part of an SEO manipulation scheme. While no scripts were explicitly extracted, the PDF structure and the presence of many external links suggest it is designed to redirect users to potentially malicious websites, possibly for phishing or malware distribution.

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://leonvi.ru/strik?utm_term=best+equalizer+setting+for+soundbar PDF link annotation
    • http://goxusig.22web.org/alarm_check_valve_viking.pdfIn PDF document text
    • http://gimarokonul.22web.org/wastewater_treatment_plant_construction.pdfIn PDF document text
    • https://malinozibide.weebly.com/uploads/1/3/4/3/134380659/dagorevevif.pdfIn PDF document text
    • https://lunisaga.weebly.com/uploads/1/3/5/3/135302545/rupor.pdfIn PDF document text
    • https://vovinusowoxojik.weebly.com/uploads/1/3/4/3/134349833/bdf6bc5f.pdfIn PDF document text
    • https://dowixedazu.weebly.com/uploads/1/3/1/4/131409709/440373.pdfIn PDF document text
    • http://dimivetow.iblogger.org/22731542749.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/babetafaperaxov/abcd_movie_video_song_tamil.pdfIn PDF document text
    • http://nisebot.epizy.com/1555411505.pdfIn PDF document text
    • http://wozabuposeg.epizy.com/14663472901.pdfIn PDF document text
    • http://folilef.rf.gd/anthrax_exposure_and_awareness_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/barts_health_nhs_trust_chief_information_officer.pdfIn PDF document text
    • https://s3.amazonaws.com/gusule/craftsman_3_gallon_135_psi_air_compressor_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/rijamafezumevuze.pdfIn PDF document text
    • http://peworesafasar.epizy.com/bangladesh_cricket_picture.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/computer_programming_university_courses_scotland.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/50690382795.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/40813517118.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_off0000ee83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE83 5440 bytes
SHA-256: c16e1653e77901f53144fc7605f546152aa38fa35f76b1733bd0a8d20261a52e
font_01_sfnt_off0001011d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1011D 10656 bytes
SHA-256: c31dd9ce055fcb8e5ebc0b505dc57feec6503ca9cde2223ccacdfb1cac158d97

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