Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c0927781fcaf37…

MALICIOUS

PDF

69.4 KB Created: 2021-02-25 17:03:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d4bf1dc55db77c01e83bd95e75a72a72 SHA-1: 29db3fc8128c35fa8ac9866fbf54283ecb6ef705 SHA-256: 32c0927781fcaf370bd5c01c9f233a64d2fe3b66dc5cf8efd3d2c54924d26742
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a phishing page or a second-stage payload. The document body, though heavily obfuscated, suggests a lure related to product information, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=promax+mt79073+protractor+and+saw+guide PDF link annotation
    • http://mavigawika.scienceontheweb.net/59605028584.pdfIn PDF document text
    • http://myluckybet.xyz/ejercicios_already_just_yetrjnuj.pdfIn PDF document text
    • http://tokexal.medianewsonline.com/95593529584.pdfIn PDF document text
    • http://nelodorofi.iblogger.org/74424213124.pdfIn PDF document text
    • http://liolika-rsya.ru/tuzowepisj63wa.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/67142263760.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bumurulepowele.myartsonline.com/common_pronunciation_mistakes_in_english_for_chinese_speakers.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/jalibofedi.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/jafinitenisaxiguzume.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/7571476245.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/monday_punday_answers_462.pdfIn PDF document text
    • http://janarisugikev.rf.gd/26208205182.pdfIn PDF document text
    • http://nufufud.epizy.com/jovoloseposejuwepumesos.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/21920978423.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/bypass_app_free.pdfIn PDF document text
    • http://gezixerigalejeb.rf.gd/10_tools_used_in_computer_hardware_servicing.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/cedrelinga_cateniformis_plantation.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/difference_between_garmin_gpsmap_78s_and_78sc.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_off0000cf1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1D 6064 bytes
SHA-256: 79e3c4b12c5a42a77ccdbbc947c00fe6ee98488e71318dd59461bac9e5ff074d
font_01_sfnt_off0000e3bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3BF 10772 bytes
SHA-256: cb79ca8edf9ccc594d6aba1d2e9e1654b9d10edc713a5c603ecb13df69ce9bec

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