Malicious PDF — malware analysis report

Static analysis result for SHA-256 0030b4168e0f7725…

MALICIOUS

PDF

72.6 KB Created: 2021-02-22 15:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1cc92ac39f5a29bc1e037f611465973f SHA-1: 73fda0f67de88cccf04cde7e617ac1ff4c3a55b6 SHA-256: 0030b4168e0f7725c7182abcaa030df11036b039064f6ee7ae889d434304c1ac
222 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links to external resources, including a known malicious redirector. The presence of a 'download' lure and a high ML classifier score strongly suggest a phishing or malware distribution attempt. The document's structure and embedded links indicate it is designed to trick users into visiting malicious sites or downloading unwanted files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://crophysi.ru/wix?keyword=download+traffic+rider+mod+apk+for+android+4.4.2 In PDF document text
    • https://xizirujikalowev.weebly.com/uploads/1/3/1/4/131454807/3983d165e4680f.pdfIn PDF document text
    • https://rezigetofetima.weebly.com/uploads/1/3/1/1/131163738/mivafixaro_monovoso_rusisobuvalor_kuvevifujuror.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/drawing_vectors_physics_worksheetw5wqf.pdfIn PDF document text
    • http://smilex.club/695361272656v6c3.pdfIn PDF document text
    • https://vuxilimibipemop.weebly.com/uploads/1/3/1/4/131453056/b6ab0e3e09b1f.pdfIn PDF document text
    • https://litemavokof.weebly.com/uploads/1/3/1/8/131871991/7319816.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/pozokimepe/18498185832.pdfIn PDF document text
    • http://pisozirepuwi.epizy.com/bravos_xl_washer_not_turning_on.pdfIn PDF document text
    • http://pimifemegizak.epizy.com/adnan_khan_photos.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/brigandine_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/drill_down_report_in_webfocus.pdfIn PDF document text
    • http://zakivijojinikij.epizy.com/ielts_speaking_test_samples_with_answers_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/fansipan_mountain_without_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_off0000dc94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC94 5528 bytes
SHA-256: 728fdf89211d2490e7493165153a3400a2b44361ff1be1955511d39c4215c71b
font_01_sfnt_off0000ef76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF76 11416 bytes
SHA-256: 718a99c2324e751d61141193e4af558c6d5614326f7fc65e65395b1359c350d9

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