Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f88371ecad4ef0a…

MALICIOUS

PDF

90.3 KB Created: 2021-03-24 17:19:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0caf19d9121c0b3dc31e161aa6726ce9 SHA-1: 13551394843896dd62c2a5167500a38f13cd58ba SHA-256: 0f88371ecad4ef0a1d362b5ea993a034a7bb9d9b94f7106f502321cf026ae648
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 0.9983

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://leonvi.ru/wix?keyword=one+piece+pdf+%25E0%25B9%2584%25E0%25B8%2597%25E0%25B8%25A2 PDF link annotation
    • http://islta.fun/900746293516cwi2.pdfIn PDF document text
    • http://zafabido.22web.org/93034653125.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492246/normal_5fc766eb7dc44.pdfIn PDF document text
    • http://sejamilipigiseb.iblogger.org/zifedejilokebefagaboj.pdfIn PDF document text
    • http://giocodigital.space/seven_years_old_lyrics_remixmavn8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421477/normal_6046788e15df8.pdfIn PDF document text
    • http://iwhite.space/online_android_virus_scan10jmc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478664/normal_602515e434c13.pdfIn PDF document text
    • http://trylait.club/just_breathe_pearl_jam_song53jz8.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/20480289137.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/cuentos_cortos_latinoamericanos.pdfIn PDF document text
    • http://lometazojubusi.rf.gd/34872996412.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/being_human_us_season_1_complete.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/96255709112.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/jumpmaster_white_slip_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/simple_present_tense_negative_form_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/sample_employment_contract_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/casio_exilim_camera_ex-s2.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/547629874.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/juvavikexefaleba.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/cds_entrance_exam_books.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/kifaleletenigametem.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/94227103510.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/88154569848.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000107cb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x107CB 17344 bytes
SHA-256: bcc9f39ed368a87ea320b116a0fb65e19de0bf550363117fdec83bbe523a4917
font_00_sfnt_off0000e7b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B1 4660 bytes
SHA-256: 75088f1bdb9e4abdfd51e85af81e8d822d6fa25647d4c0b3bcd0b4b553aede6e
font_01_sfnt_off0000f7a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A3 6228 bytes
SHA-256: 5be5f0322c98a35acc55a956f2ccb4c48cb8f18c502ad166c7ac80bc5ff749af
font_03_sfnt_off00013676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13676 10192 bytes
SHA-256: 06055068dfc15b7ab8ee118cbc3e2ee4a3ac38f3dfb936330c3672e23ba22dc5

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