Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b209dc6e3964c5…

MALICIOUS

PDF

82.7 KB Created: 2021-04-08 07:01:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 935a696d9391ccf6d9531d682839b383 SHA-1: 98dbbdbe9afee78f75e63ed20f1736848f8169ad SHA-256: a8b209dc6e3964c53fc90dc4a0f61461243ea68c3aaf8d255aa35abbaa931943
96 Risk Score

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://ponafet.ru/strik?utm_term=chicco+infant+car+seat+without+base PDF link annotation
    • http://swiss-gear-top.xyz/how_to_cheat_verbal_reasoning_testsru4w7.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/organic_causes_of_depression.pdfIn PDF document text
    • http://item-get.top/59636355157ly9d6.pdfIn PDF document text
    • https://cdn.sqhk.co/ronelejibir/h8ibihA/pibag.pdfIn PDF document text
    • http://zuregazezoral.mygamesonline.org/98764777744.pdfIn PDF document text
    • http://triple-doska6.club/64090393669pdivh.pdfIn PDF document text
    • http://jivusibofonefud.mygamesonline.org/loxoto.pdfIn PDF document text
    • https://cdn.sqhk.co/dufikibagi/hmCn71f/77632263617.pdfIn PDF document text
    • http://siviveko.getenjoyment.net/jagitadatetesorededub.pdfIn PDF document text
    • http://shtangye.xyz/xitagopits3ts0.pdfIn PDF document text
    • https://cdn.sqhk.co/zutomina/hdXaShh/oye_chico_huevos_cubanos.pdfIn PDF document text
    • http://choosemadam.site/add_video_to_wix_blog4ixdr.pdfIn PDF document text
    • http://help-feedback-amzn8.xyz/how_to_write_a_story_with_introduction_body_and_conclusionrtsw2.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/gjdSgdX/jiselata.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/kezemiradigu/kit_kat_chocolate_images_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/bdl_full_form_in_engineering.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/41588564903.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/reducing_fractions_worksheet_common_core.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/6692404357.pdfIn PDF document text
    • http://raxegujanamefas.atwebpages.com/why_is_my_whirlpool_refrigerator_not_cooling.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_off0000f9ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9AC 5072 bytes
SHA-256: 6647cbbf547dacb4849eb794aa99a6f999f048d0a30b54a175bba7baecc78f8c
font_01_sfnt_off00010aec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEC 10612 bytes
SHA-256: 62604569b77d3cc5c40812dce558bed5239174620f90e640f001c8db551f5303
font_02_sfnt_off00012f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F1B 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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