Malicious PDF — malware analysis report

Static analysis result for SHA-256 40f952a443b7280b…

MALICIOUS

PDF

78.2 KB Created: 2021-03-24 23:47:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 866600c22701953c1c958a30a7126407 SHA-1: 9f5b816d8f6271f254e4bd10dc2045f0660674cd SHA-256: 40f952a443b7280b51b1fb44f1cd34ca7596533aca9284a1ef4f9f348bf85ea6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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. 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 0.9996

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://bologen.ru/123?utm_term=beyond+compare+command+line+save+report PDF link annotation
    • https://cdn.sqhk.co/xovujiroveg/iejggCS/48863546758.pdfIn PDF document text
    • https://cdn.sqhk.co/xusokivaxame/cjgzifv/parumupawesasusuvid.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/cUgi4Bo/retroarch_tutorial_2019.pdfIn PDF document text
    • http://saxefitipar.iblogger.org/83499270815.pdfIn PDF document text
    • https://cdn.sqhk.co/mutexeze/jhoQhhy/steamship_authority_parking_permit.pdfIn PDF document text
    • https://cdn.sqhk.co/wunokebewoz/igAsYhg/wojonedebageriduvaworeva.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/bQEySPG/traffic_racer_mod_apk_hack_version.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
    • https://uploads.strikinglycdn.com/files/59541801-707b-4ae6-bfa6-d9fa05dd5f0f/lord_of_the_rings_cast_get_matching_tattoos.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/free_chess_books_for_beginners.pdfIn PDF document text
    • http://janofegiwene.epizy.com/85760846156.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aac8d3c0-d345-4599-8a42-f5bd93e0870b/zakomoles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f19cabe1-2ed0-4af8-b75e-3b8852f25a7d/lumar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/772f171e-3cea-4a22-8e4a-028f37080aef/1792288255.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36555bd3-9cc4-4656-ae9c-46eac10be9a6/86517314820.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/social_constructionism_examples_in_healthcare.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94570c57-5cdc-4771-b98b-106573b6c669/muguvorafapop.pdfIn PDF document text
    • http://rirojirijuguga.epizy.com/zuweroresadavepokomevu.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/android_callback_from_class_to_activity.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13edfa64-35b1-4011-a458-4aa00d712865/unity_technologies_stock_ipo.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/act_practice_test_magoosh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01f24623-952d-45fe-b276-c1cb1bdb33f5/richard_bandler_hypnosis_mp3.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/what_are_the_five_steps_in_resolving_conflict.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_off0000e42d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE42D 5220 bytes
SHA-256: bb1348c9e833317d6211164a7fcfba67a33cd2f6b56903db95e9341e93e9fb5c
font_01_sfnt_off0000f5d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D2 11428 bytes
SHA-256: fa4b689b26624bb8de47795f3c9be4c62f162d636252ecd6f02cd84980a46cef
font_02_sfnt_off00011cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CFB 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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