Malicious PDF — malware analysis report

Static analysis result for SHA-256 36cc1c5802058584…

MALICIOUS

PDF

80.7 KB Created: 2021-03-22 12:02:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1c8087207734165b2dd82ec9133d943f SHA-1: 7255a4ab5ede092c683e6fd32b24c160bb562b8b SHA-256: 36cc1c5802058584f4e7ed03d8ae6ca56837a40b87ab78097f38c8ad41b5ed01
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 0.9995

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://kuzutuzo.ru/123?utm_term=definition+of+awareness+pdf PDF link annotation
    • https://cdn.sqhk.co/folikulezig/cjdhhZI/jedili.pdfIn PDF document text
    • https://cdn.sqhk.co/fowijuseziju/dgfdkjg/scenery_definition_in_music.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/aaihEI8/flyvpn_mod_apk_cracked.pdfIn PDF document text
    • https://cdn.sqhk.co/kufagilan/KgfuLgF/2ndline_second_phone_number_uptodown.pdfIn PDF document text
    • https://cdn.sqhk.co/boduzapun/BgcdKhe/zipgrade_answer_sheet_60.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/QjgNNxn/rawabux.pdfIn PDF document text
    • https://cdn.sqhk.co/nonagidux/vtUgd4u/61983272801.pdfIn PDF document text
    • https://cdn.sqhk.co/wadebekop/lhfiGkf/bible_word_search_puzzles_for_youth.pdfIn PDF document text
    • https://cdn.sqhk.co/sovebiba/if1RhjI/hay_day_game_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/ghhfOjc/gameboy_advance_pac-_man_collection.pdfIn PDF document text
    • https://cdn.sqhk.co/palubavuz/KfibCia/13076514259.pdfIn PDF document text
    • https://cdn.sqhk.co/vizebika/vgiXgdL/28419201376.pdfIn PDF document text
    • https://cdn.sqhk.co/bawijodol/jbjjhh0/red_alert_remastered_macbook.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/715c4fae-9e11-4a0d-9fd4-2176f2900fc1/6690773418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a957454-f88d-41cd-bca7-bdc3c5622101/95271133723.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/how_to_enter_the_court_of_heaven.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3c1824f-2261-4a4a-929e-e6229b3e6288/tijaminogo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0eb526e-da2c-4c0d-9423-1ddda8fc77bb/detonidu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3547b60a-e02e-4821-a9bd-dbd2051b74c6/76081938412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57366e4a-e0f9-40c9-8933-2ee472088217/canon_elura_100_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/18310914706.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae6e56c4-4743-49ed-af07-c578de47f79e/first_alert_co_detector_instructions.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_off0000f2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BB 4880 bytes
SHA-256: 7592f425833cd5a658ff53bfe36443462dff057b89fe96dd89324ec9ba59c2b9
font_01_sfnt_off00010371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10371 10588 bytes
SHA-256: 844046561ecb394a6c87cc773c207473f57785a7aa32ced8785707efa17245bf
font_02_sfnt_off00012761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12761 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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