Malicious PDF — malware analysis report

Static analysis result for SHA-256 61f72449ff7bf897…

MALICIOUS

PDF

77.8 KB Created: 2021-03-27 12:31:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 17887e8a75094fcd83a7d1bd4bfe5d00 SHA-1: eaeef2945158b3c3acf12c2632bdf450ba79b169 SHA-256: 61f72449ff7bf89727c37ecd6fdb53fa43c85a551b59d69ebeaa724d45234398
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-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://golowaki.ru/strik?utm_term=who+created+the+first+electric+light+bulb PDF link annotation
    • http://vowujebotoza.mywebcommunity.org/tubugijitomexapomet.pdfIn PDF document text
    • http://kiwenalod.medianewsonline.com/how_well_can_you_follow_directions_worksheet_united_states.pdfIn PDF document text
    • http://wevotimojek.22web.org/gojusuropetujajukegesuzom.pdfIn PDF document text
    • http://tepoparupomo.medianewsonline.com/beginners_python_tutorial.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/70419735587.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/norozovijalu/how_to_charge_ridgid_battery.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/firisejezesawisap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60407852-7202-48af-bc55-885cef806962/zasofaxuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/96710032714.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9597a069-a6c5-4d11-bd75-549e6acf1312/12741010206.pdfIn PDF document text
    • http://doroxokile.epizy.com/wordpress_template_hierarchy_image.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/request_for_relieving_letter_email_format.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/nemojejugaladav.pdfIn PDF document text
    • http://gewejowanasov.epizy.com/19638791811.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6277794e-e657-474c-816c-ee7df9a0393f/bubagatigopiniso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6cd7d36-d2da-4601-acd1-edb824af8c96/8723825625.pdfIn PDF document text
    • http://zilowovuv.atwebpages.com/solving_quadratic_equations_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7eefadd-ba9a-46d7-b05d-6602a49d5106/gebupupiwotir.pdfIn PDF document text
    • http://setovoj.onlinewebshop.net/romowedopedira.pdfIn PDF document text
    • http://nunozufivov.epizy.com/14861775531.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/how_do_i_find_the_wifi_password_on_my_hp_deskjet_2600.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_off0000f083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF083 5436 bytes
SHA-256: b968f39fafe9db32c164efa1172fd1ece0ab7b6d4577f9e798f3814ddd093c4a
font_01_sfnt_off0001030a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030A 11412 bytes
SHA-256: 5025adb3e42c733ddf12112f8ba03d497d03c5b5a84f9bb3ec374247bd25e73d

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