Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f710737a83acb3e…

MALICIOUS

PDF

75.4 KB Created: 2021-05-11 10:50:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 79f29b1aa47e982c7b359b0502853a1d SHA-1: 5298dd2cb319603016eb71e0f29eebed0cd70d37 SHA-256: 9f710737a83acb3e63118ceae9a43cc5b321a517867213648abc5834b8beed2d
116 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a QR-code lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://bologen.ru/strik?utm_term=x+ray+circuit PDF link annotation
    • https://cdn.sqhk.co/dibitarebizu/Uwzmyjh/musicas_internacionais_discoteca_anos_70_80_90.pdfIn PDF document text
    • http://wapajag.22web.org/9823894665.pdfIn PDF document text
    • http://pefipegukanijel.22web.org/memento_mori_coin_necklace.pdfIn PDF document text
    • https://zamokofoviwikaz.weebly.com/uploads/1/3/0/8/130815095/df9b6e8b807.pdfIn PDF document text
    • https://mejotowud.weebly.com/uploads/1/3/0/9/130969644/zazuto.pdfIn PDF document text
    • https://wanusasa.weebly.com/uploads/1/3/1/0/131070791/a327fcfd4e.pdfIn PDF document text
    • https://cdn.sqhk.co/guzamuvi/jezNCgc/90135599466.pdfIn PDF document text
    • http://vegemisabuxum.22web.org/bezubaan_piku_song_pagalworld.pdfIn PDF document text
    • http://tebipadize.iblogger.org/big_arms_workout_routine.pdfIn PDF document text
    • https://cdn.sqhk.co/gagunewatevo/M92jaXW/qr_code_scanner_from_camera_android_studio_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/9apbx13/84116494916.pdfIn PDF document text
    • https://lunidopufakim.weebly.com/uploads/1/3/4/4/134482460/dorovo.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/sikuva/how_to_activate_keyboard_light_on_macbook_air.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/fool_again_lyrics_video.pdfIn PDF document text
    • http://wedofisirix.epizy.com/nowupozapakusasot.pdfIn PDF document text
    • http://xaduwefel.rf.gd/72110054936.pdfIn PDF document text
    • http://dulizarunagisu.epizy.com/55735274381.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/informatica_powercenter_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/25085693283.pdfIn PDF document text
    • http://kisomelug.rf.gd/a_level_topical_past_papers_biology.pdfIn PDF document text
    • http://ledonapagemes.epizy.com/saxuvato.pdfIn PDF document text
    • http://zaguvigijosev.epizy.com/zamuwalew.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/8189677107.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB5A 4664 bytes
SHA-256: 93e036c4c28bbf6a1fb11cbab8348ffee35f3607ab8cf6a3c82c89bb0360ef3a
font_01_sfnt_off0000fb46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB46 11000 bytes
SHA-256: 56593fe41c21e0ffe5096a11752ce5397f401b0d9c21c00c80717efc5953f8e5

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