Malicious PDF — malware analysis report

Static analysis result for SHA-256 fefb6a7e4a35c108…

MALICIOUS

PDF

76.3 KB Created: 2021-03-27 22:59:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a951cb9334dd394e7306ba41666a3de1 SHA-1: 3bb5268169829e9fb35b9a7baf3b5cbd34dfc20b SHA-256: fefb6a7e4a35c108ff444633153dc8c3377d361f0bc46bb5a25989c6f7400b4c
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://pelibifir.ru/award?keyword=bescherelle+verbes+anglais+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374533/normal_60033beb36660.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/are_disney_world_fireworks_cancelled.pdfIn PDF document text
    • https://cdn.sqhk.co/devisojop/kiahjja/26391080654.pdfIn PDF document text
    • https://cdn.sqhk.co/wufakinupo/ZJiagjr/9723729174.pdfIn PDF document text
    • http://koparikamoze.scienceontheweb.net/40163545066.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409420/normal_5fd814e6366c1.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/AjaF9gc/48811957839.pdfIn PDF document text
    • https://cdn.sqhk.co/zoluxoni/XhjWjf5/jaxowipikigevusukujitik.pdfIn PDF document text
    • http://rinobozawizuvew.iblogger.org/the_old_man_and_the_sea_bangla_version.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457008/normal_60167effd84f0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zalomi/titan_spray_machine_440_price.pdfIn PDF document text
    • http://liwumulexajuvi.epizy.com/weather_report_of_tamil_nadu_chennai.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/51799000983.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/mumifoxunibulitigagukiwi.pdfIn PDF document text
    • http://lukenulabimoz.rf.gd/56834702549.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/gonna_fly_now_trumpet_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/37203278393.pdfIn PDF document text
    • http://demezokesude.rf.gd/django_iterate_queryset_in_template.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/gakazubi.pdfIn PDF document text
    • http://pogetowem.onlinewebshop.net/best_app_for_child_to_learn_english.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_off0000e56c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56C 5668 bytes
SHA-256: 846b1fbd069d9b365bbbd69c5071a673e0c695cc53e2e0fa31cb472607483d2d
font_01_sfnt_off0000f8ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BA 13276 bytes
SHA-256: bc76052e121db1fd9729563cbf8c0576e2a26058268acf4420987eea616573f7

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