Malicious PDF — malware analysis report

Static analysis result for SHA-256 03de63aab08808a1…

MALICIOUS

PDF

82.7 KB Created: 2021-03-17 20:15:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 5a2aacd2a7a4bb913b6f5460aa66a16e SHA-1: 9a9e48c253ca5a8b603bf5caf845b0259aeed8d9 SHA-256: 03de63aab08808a175f1e6b45c5362eb1dc5b4efdd8f4504be7d88c14c36386a
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'fokemale.ru', which is likely a phishing or malware distribution domain. The PDF structure and embedded URLs suggest an attempt to trick users into downloading further malicious content, masquerading as a legitimate document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/award?keyword=latin+bass+book+pdf+download PDF link annotation
    • https://cdn.sqhk.co/fefavezevir/1hg8gdA/ferigarigapejuzumad.pdfIn PDF document text
    • http://jonusawa.iblogger.org/fidikefe.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxarogajib/go8lV3h/46985807121.pdfIn PDF document text
    • https://cdn.sqhk.co/dunokufimove/ie6ljcn/lindex_baby_size_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/depivuni/6VNifih/19251818244.pdfIn PDF document text
    • https://cdn.sqhk.co/fafixefeb/WjjDbeB/tivakovado.pdfIn PDF document text
    • https://cdn.sqhk.co/rapekerokemo/iUfXt2V/smash_hit_vr_oculus_quest.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwegamuvev/jeGZjdr/zuselen.pdfIn PDF document text
    • http://loberas.22web.org/kannada_a_video_song.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/hgjghie/98629118616.pdfIn PDF document text
    • http://nurokeg.22web.org/diet_after_gallbladder_surgery.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/8b393193-838a-4168-bbf5-80d5644e63a6/istikhara_ki_dua_in_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0423c375-5c10-485c-8e4d-04bce36dfca8/wugen.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/sheet_pan_dijon_balsamic_chicken_and_veggies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad4ee7f1-1d2e-4f62-b5dc-6c0b98c867cc/bogolurumiwojubemokalu.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/bittersweet_panic_at_the_disco_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a944906a-cea4-4381-89cf-267fee29af6a/how_to_learn_arduino_programming_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/poemas_en_lengua_indigena_y_su_traduccion_cortos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf2706c8-ff65-4d83-9af4-3e20b7368188/constitution_of_the_soviet_union_1924.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/figures_of_speech_worksheet_grade_3.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_off0000ec79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC79 5176 bytes
SHA-256: 634a30f00c5eea87f20ec30aa2071512272d08820bf6264f339e24c5096607d8
font_01_sfnt_off0000fe40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE40 12004 bytes
SHA-256: 9747a0d3a957fd458ddf752e58604f41ef10650c6eb028c81570a15ef203c7e0
font_02_sfnt_off000126fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126FA 16120 bytes
SHA-256: 10c3134811a9f18c496b90a04dfb4d02f3b5bcc88c6298ae91119f541caf8668

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