Malicious PDF — malware analysis report

Static analysis result for SHA-256 83447bec2b01fb68…

MALICIOUS

PDF

81.4 KB Created: 2021-03-08 23:22:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: dd13e33758e359559c88762c658e78ce SHA-1: 914873adbc674f7b73ca33cf5a58f6d275b785a3 SHA-256: 83447bec2b01fb680de8b27bc45e0c8edbb9548a5c2e80a52f852b233e642da6
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 0.9998

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://xezojetit.ru/strik?utm_term=the+painted+bird+streaming+uk PDF link annotation
    • https://cdn.sqhk.co/wajuletixex/55hfV9r/xegazowudiwenavivofelun.pdfIn PDF document text
    • http://juvasojiwal.66ghz.com/how_to_perform_istikhara_prayer_step_by_step.pdfIn PDF document text
    • http://pefuwujoxuroj.iblogger.org/nukipevurotu.pdfIn PDF document text
    • https://cdn.sqhk.co/jobezivozuf/egeBifI/linear_equation_formula.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b51acf7d-6842-4138-9476-bd7c1baad87f/how_to_get_free_shark_cards_gta_5_online_xbox_one.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/pijegopadakigowofuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/266d3dfb-424d-49c5-841f-fae5722f7b0e/62909378949.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f170a8d9-1ff8-4014-a164-81cce5b4008e/stihl_autocut_25-2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd4e9899-773f-48ae-984d-87b67fc91059/bidatukasinu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28d2be87-43f9-40ac-8b6c-3f4e4d7fba41/65604805142.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/u_dictionary_english_to_urdu_apk.pdfIn PDF document text
    • http://nenezonel.rf.gd/geared_slab_bold_font.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ce31aa8-0c0e-4a76-a891-f00d6b6274ab/tv_pitch_deck_template.pdfIn PDF document text
    • http://zuzidonul.epizy.com/beponesigevip.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/git_cheat_sheet_github.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22e82fe1-ac95-43d2-b893-c146f6769b94/vinafejupelefixovozabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b59580d-9442-4da5-aa6e-a1e6d7dec2d4/12731089089.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58e4049f-28bf-41c0-b0e6-fad131c2988a/tekikepumitokusaso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d69bc397-afff-485d-a804-9ea92a9604d6/baxefupija.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e92b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE92B 5496 bytes
SHA-256: a36dae07b007331fa2d924559bf401fb35aa8a9df5a70dc464acde3061648036
font_01_sfnt_off0000fba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA4 11984 bytes
SHA-256: 4375f7aeeeeb0034648f56effa08aba90d318928ce5c2e1a7a7caf5b3d803204
font_02_sfnt_off00012347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12347 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2

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