Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce573fbef321ac6a…

MALICIOUS

PDF

75.0 KB Created: 2021-03-21 01:47:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 82baf9eab101eab624fde13c108de246 SHA-1: 925e014b5b768b9c76129064e96353513b328b5d SHA-256: ce573fbef321ac6a920bb8aa9c51e41d13442815c13be969591a50e9bf93f80c
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 0.9997

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://jumiwimov.ru/aws?utm_term=how+do+i+reset+the+ribbon+in+autocad PDF link annotation
    • http://jobs-ingenieur.best/what_can_you_cook_in_a_black_and_decker_toaster_oven0oeby.pdfIn PDF document text
    • http://kinatoguvekajux.22web.org/how_to_take_apart_a_delonghi_pinguino_air_conditioner.pdfIn PDF document text
    • http://wovemabib.iblogger.org/ahmet_mit_kavim.pdfIn PDF document text
    • http://fashion-deals.xyz/nouns_worksheet_for_3rd_gradeqvm0p.pdfIn PDF document text
    • http://repair-foto.ru/how_to_write_a_counter_narrativecu0k5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kavimefejemud.rf.gd/boss_ladderspan_user_guide.pdfIn PDF document text
    • http://jigufabusu.epizy.com/2013_dodge_charger_se_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a128278-d695-47fc-8d7d-911056fa1467/27052911137.pdfIn PDF document text
    • http://fovuxux.rf.gd/google_sheets_match_regex.pdfIn PDF document text
    • http://werujutiweponig.rf.gd/36557469629.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/likeminujuniwane.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/medofadivaxatijumixilijit.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/kazojapavefobajelitepopi.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/factoring_linear_expressions_worksheet_7th_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f30a540-019d-4d11-a013-d52aa89fe932/jean_paul_sartres_essay_existentialism_is_a_humanism.pdfIn PDF document text
    • http://joposib.rf.gd/41499012722.pdfIn PDF document text
    • http://zekakodususebu.epizy.com/64763247277.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb2716d5-8d29-49e0-905a-2a34de0c01c7/how_much_does_a_large_square_bale_of_hay_weigh.pdfIn PDF document text
    • http://talujef.rf.gd/37669128665.pdfIn PDF document text
    • http://bubexixan.epizy.com/conan_exiles_ps4_thrall_guide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE474 5188 bytes
SHA-256: 2eecb0af00da9bcf32ab783704cbf9bfa4c8bcb0b68dcd8a7f2cb17f725ebf21
font_01_sfnt_off0000f620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF620 11608 bytes
SHA-256: 65edf858f805087adec25ea9dc917523dbc27f5fdaf5b54edcd9f62351cba51b

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