Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcf79232b466fd6e…

MALICIOUS

PDF

82.6 KB Created: 2021-03-22 10:20:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 1ae9788da32483c5b9e129cafb6667e9 SHA-1: 7032020171442ba4e05af2626cde8503c6e5fda9 SHA-256: bcf79232b466fd6e5b2ef6feed6f4d0a3ab0b12776c2ad375c78efb5e94de2e1
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for payload delivery. The document body, though heavily obfuscated, appears to be a lure related to a TV show, suggesting a phishing or social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://gimoguvi.ru/strik?utm_term=is+the+undoing+on+hbo+based+on+a+book PDF link annotation
    • http://woxuruko.medianewsonline.com/47955751728.pdfIn PDF document text
    • http://kapovulup.mywebcommunity.org/dokiwolevatuk.pdfIn PDF document text
    • http://biwiroxefamir.mywebcommunity.org/82611401477.pdfIn PDF document text
    • http://jepegupunu.mygamesonline.org/62128695224.pdfIn PDF document text
    • http://piwulag.sportsontheweb.net/best_movies_like_the_devil_wears_prada.pdfIn PDF document text
    • http://nijaxubazaziw.mypressonline.com/97640353938.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/therapeutic_foster_care_training.pdfIn PDF document text
    • http://nefutekugurenap.mygamesonline.org/84677231834.pdfIn PDF document text
    • http://pipetopewuja.iblogger.org/shadowrun_sixth_world_core_rulebook_free.pdfIn PDF document text
    • http://mobufuwiwid.medianewsonline.com/best_classes_diablo_3_season_22.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/blacksmith_forge_plans.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/buzudeserose.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://bepizokebador.epizy.com/fluke_network_tester_report.pdfIn PDF document text
    • http://remivipe.rf.gd/1367820672.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/c._r._e._a._m._sheet_music.pdfIn PDF document text
    • http://jalebuvubo.myartsonline.com/sasukowivasewi.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/blue_prism_xml_vbo.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/55493458113.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/safupixisuvoparunamazimik.pdfIn PDF document text
    • http://vininotubosom.epizy.com/new_telugu_album_songs_2018.pdfIn PDF document text
    • http://lumosaneja.onlinewebshop.net/nj-927_form_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/kutitob.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/49690526239.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/what_does_magus_mean_in_arabic.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/python_string_format_scientific_notation.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF525 4984 bytes
SHA-256: 9a7988cec515077ce9147832d059477cbd85072cae805ba0b298c0a6a4d13f58
font_01_sfnt_off0001060b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1060B 11412 bytes
SHA-256: ecee3e20b74577060e0ad77c6559a8ec216b72f1875ed8925ee669d4f23e060d
font_02_sfnt_off00012ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CE2 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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