Malicious PDF — malware analysis report

Static analysis result for SHA-256 84b379d2444d3934…

MALICIOUS

PDF

74.1 KB Created: 2021-03-18 04:07:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a26c885abc05cbaf071fcef4df3388e3 SHA-1: 1a8ebbb18c18d7d128b5a2fb1ec9ca3096154c57 SHA-256: 84b379d2444d393462416e3804b9ea13b36e6f7badcea09d85a6e93bc6837230
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://soxebez.ru/award?keyword=bunch+of+thoughts+in+tamil+pdf+download PDF link annotation
    • https://cdn.sqhk.co/bapulofuw/fAOyWxa/santorini_greece_resort_luxury.pdfIn PDF document text
    • https://cdn.sqhk.co/relulapezele/i6wZijD/hpv_virus_warzen_entfernen.pdfIn PDF document text
    • http://xokebidukefu.getenjoyment.net/lametolezaju.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/hsghhgg/30846219243.pdfIn PDF document text
    • https://cdn.sqhk.co/gesokusa/1LgeWii/62858283603.pdfIn PDF document text
    • http://dusipoweg.mywebcommunity.org/zowijanefugupotevudesasu.pdfIn PDF document text
    • http://vomimaforotagi.mywebcommunity.org/54217372923.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/sisaxu/at_t_stock_performance_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/45512967938.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/22793740935.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73c142da-56f6-4830-b5fc-c5d21b23cc31/77854136306.pdfIn PDF document text
    • http://sizemogigu.myartsonline.com/classroom_management_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/301ef2bf-92fa-44c2-b077-373bbcbbbcb0/pitinigafojin.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/choosing_a_medigap_policy_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/70450410782.pdfIn PDF document text
    • http://saxodanokijaj.atwebpages.com/how_to_do_crochet_box_braids_on_short_hair.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/analgesia_obstetrica_2018.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD635 5612 bytes
SHA-256: 1fb0379cd71240cb624398b8ef588e532bc8761117e6d907fd6a878f6dcefe55
font_01_sfnt_off0000e944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE944 3788 bytes
SHA-256: facf8cf439989f762e7d2b2ff6d47f3fbfef46a146b13b7e739627d247c091cd
font_02_sfnt_off0000f75f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75F 10328 bytes
SHA-256: 589df754ce64bb320e7fa94d9f3234445d621b55219bf936cab5850aecb4de36

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