Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7619daccd4effa7…

MALICIOUS

PDF

74.2 KB Created: 2021-03-25 01:26:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: d05f56536a2a21c2affccfcd308cbb6e SHA-1: a341a6a8f43f47a071e8b16ea5adcb32fb76df13 SHA-256: d7619daccd4effa775c0e798ec6cf9ad9cbfa854bda643a9cf92a91a1ed5c452
96 Risk Score

Malware Insights

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

The file is a PDF document that contains a heuristic firing for an external URI, pointing to a suspicious domain. The document body, though heavily obfuscated, contains text related to opening a product, which is likely a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=how+to+open+abu+garcia+black+max PDF link annotation
    • http://zexawil.22web.org/zifagidaz.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/luborinizu/herman_miller_aeron_chair_refurbished_uk.pdfIn PDF document text
    • http://kirutitas.epizy.com/the_lottery_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/17269533796.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9cd43c3-ca89-4195-8b90-32c0ddafd3f1/fuzoxa.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/aamc_mcat_practice_test_bundle.pdfIn PDF document text
    • http://bakalawakajade.epizy.com/mewofakotemuwijadawizowig.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/3_bedroom_house_designs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdb37ec3-4d92-4c70-955c-b1b2c4ba4f8e/frys_first_100_common_words.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/halloween_the_movie_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/ayatul_kursi_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/blocky_highway_mod_apk_latest_version.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/best_skyrim_load_order_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/95400314241.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/ford_3000_diesel_tractor_oil_change.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/bass_boosted_apk_uptodown.pdfIn PDF document text
    • http://zejaseli.epizy.com/polow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/949a9d08-6fc8-4204-aff5-ee99152e4c06/canon_pixma_890.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/132268f2-4ed3-4878-a49d-df80d3534e6d/how_to_fix_delta_shower_knob.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/bismillah_song_dance_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/alice_in_chains_dirt_full_album.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7780dabf-f9aa-4caa-92fb-76be4808cfaf/sivoxijekugusa.pdfIn PDF document text
    • http://lenubavezuvutu.rf.gd/basic_english_grammar_book_1_answer_key_free_download.pdfIn PDF document text
    • http://vulebodifoguvar.epizy.com/pinufezoz.pdfIn PDF document text
    • http://mavixufomulene.rf.gd/sex_coloring_book_printable_free.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_off0000e2f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F5 5400 bytes
SHA-256: c407b55be8a7beafa59c37be8cfcd23849b081b6f9bed5c8e8d874dff0435988
font_01_sfnt_off0000f559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF559 11740 bytes
SHA-256: abd31bfe2ae9b59131d8fc9154bdb010da091133c4e7ba4fe97e4b288a87b3e3

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