Malicious PDF — malware analysis report

Static analysis result for SHA-256 0664fd0eb7b60e1d…

MALICIOUS

PDF

80.6 KB Created: 2021-05-14 22:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 96733b36989f579ebc2caba4c1861754 SHA-1: 21f7727e63ef2a7dd62abd68d64b678d622d2d42 SHA-256: 0664fd0eb7b60e1df89b4000e9044e1205d89f7a4937e6bb161551ee7d0ec333
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-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://dafemum.ru/strik?utm_term=why+does+my+whirlpool+washer+leak+water PDF link annotation
    • http://movawizaxaxato.mywebcommunity.org/quran_pak_with_urdu_translation_word_by_word_download.pdfIn PDF document text
    • http://fujigukatujewu.medianewsonline.com/vitegituxefosirisaniz.pdfIn PDF document text
    • https://cdn.sqhk.co/zunezafi/9jiVtjj/garol.pdfIn PDF document text
    • https://cdn.sqhk.co/sevilebup/ihhheig/47956085126.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/2bgejfl/stick_figure_ninja_gif.pdfIn PDF document text
    • https://cdn.sqhk.co/jadepibake/HPigqii/33865150864.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://s3.amazonaws.com/juduk/blomberg_dishwasher_smart_touch_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/10790757045.pdfIn PDF document text
    • http://nunevubedodunu.rf.gd/brain_teasers_for_adults_with_answers_hard.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e382e7cd-f610-4e5e-a9f9-d08a3bfd553f/grade_6_math_workbook_with_answers.pdfIn PDF document text
    • http://mitikujedusor.epizy.com/94072320897.pdfIn PDF document text
    • http://wajetidal.epizy.com/tiwukaputuwofinufuvorajag.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/fuxavotidukudemet.pdfIn PDF document text
    • http://velefupidunipa.epizy.com/quran_sharif_bangla_anubad.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/xopuxajudavebiget.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/martin_luther_king_jr_picture_book_read_aloud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90a5b037-9f87-4ea7-bce1-b08a23c4765e/gerovibepifimuka.pdfIn PDF document text
    • http://moxutomib.rf.gd/ruwapu.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_off0000efa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA4 5152 bytes
SHA-256: ad2f2df57849d042e76c0b2ec18aa3739ea2bd48a58a3bd1fe2a2b86ad39e3de
font_01_sfnt_off00010145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10145 11056 bytes
SHA-256: 3b362f0021a89e194b8dd537007494837e695e3c4e981dfda42d9c0c47b2a6f6
font_02_sfnt_off00012718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12718 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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