Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a76d6c57b470307…

MALICIOUS

PDF

72.9 KB Created: 2021-03-06 06:38:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 3b147d0446bb7e44783fcf325c0c38fe SHA-1: 7cf3abf17d1b3b00674139d32436b609ab3d379f SHA-256: 6a76d6c57b47030707d2265719a99b4df6096f1dd9c9a0dad10343d3cf5f0e4e
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 phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing lure. The document body, though heavily obfuscated, suggests a search result context, further supporting the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/wix?keyword=kirk+franklin+lyrics+smile PDF link annotation
    • http://gukiduwonaxinef.getenjoyment.net/modo_de_produccion_socialista.pdfIn PDF document text
    • http://lipexifinidoda.scienceontheweb.net/how_to_connect_altec_lansing_speaker_ima699.pdfIn PDF document text
    • http://verifybadgesbusiness.com/monstrous_definition_oxford_dictionaryi47ay.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/h79bgfo/96778438403.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/jidjejj/kibajelexizixuvolifunita.pdfIn PDF document text
    • https://cdn.sqhk.co/tasaxasup/UigPhip/just_kill_me_3_mod_menu.pdfIn PDF document text
    • http://latencfsrt.space/compare_and_contrast_worksheets_1st_gradebgthf.pdfIn PDF document text
    • http://xuroriwonufuz.scienceontheweb.net/how_to_bulk_up_on_a_gluten_free_diet.pdfIn PDF document text
    • http://jajolamuseku.medianewsonline.com/what_is_the_biggest_penguin_species.pdfIn PDF document text
    • http://detonic-hypertonie.website/tekupabajexx5073.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/tapexiw/70899376814.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/fugezizupapizifujiwegoloz.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/scotland_the_brave_bagpipes_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63961c9c-d72c-4721-8ee3-e32799f515de/big_blue_live_speaker_battery_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/39507590897.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51d76ceb-507c-4b95-b941-1baa5bc8421e/88270043877.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/ubuntu_14._04_android-_tools-_adb.pdfIn PDF document text
    • http://dapufojutujat.atwebpages.com/chuck_palahniuk_survivor.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/calligraphy_alphabet_font.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bf97aaa-84b9-4c69-929f-3e8cb0096490/facebook_marketplace_categories_calgary_cars.pdfIn PDF document text
    • https://s3.amazonaws.com/vosimalume/ar_name_wallpaper_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a2a4f5c-9212-4f20-b519-e2853eb3311b/47944526314.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d732e79-3f75-4338-97e2-ee1362d4ca94/61453828493.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_off0000e3d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D4 5160 bytes
SHA-256: 5b47f48d528d23e168063e43cf15b0fa8638a1d0d92659c11bdaee77c8b12d14
font_01_sfnt_off0000f55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55C 9628 bytes
SHA-256: 57b75d18c50698e205dd5a8f0cc4532e30946ab857143d4b1ae5d48f48d3f644

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