Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e1313740c8194f…

MALICIOUS

PDF

80.1 KB Created: 2021-02-09 09:40:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: bcb9ff835152afcca80e740f7b4221d4 SHA-1: 2466c8ed295adc44ac799e628865e908162541f4 SHA-256: 36e1313740c8194fc48e917f773671ecca3a7c2f08678f269a16a4bbbd28b687
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and numerous other URLs are present within the document. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to a popular TV show, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/123?utm_term=keeping+up+with+the+kardashians+season+16+episode+8+trailer PDF link annotation
    • http://drilltech.info/21400245308jczy8.pdfIn PDF document text
    • https://cdn.sqhk.co/mixekuwuvo/YsjhghQ/vista_links_golf_course_va.pdfIn PDF document text
    • http://milanomoda-italy.website/502906962285y73q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426279/normal_60086a0538f60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502436/normal_5fedb9db254ca.pdfIn PDF document text
    • http://santecmb-sarl.com/35578123745xvzsn.pdfIn PDF document text
    • https://cdn.sqhk.co/poturofivat/TFDr6SC/diversity_jurisdiction_exists_when.pdfIn PDF document text
    • https://cdn.sqhk.co/tejurorado/icigtae/father_and_son_cat_stevens_lyrics_deutsch.pdfIn PDF document text
    • https://cdn.sqhk.co/vaziworab/idiagf8/shipwreck_grill_bryan_tx_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/kefekawit/lFthhcI/lubavunifaloliwepex.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448137/normal_5ffea59b7fd7c.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/7GhdCnH/zujodelurovezolapipokob.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/NjaS1UQ/house_designer_fix_flip_apk_mod_money.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/lolaritemukole/30810627632.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/donington_park_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/8736256869.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_off0000f93d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93D 5744 bytes
SHA-256: 516d54c0b4cedd0419e1b61aac87c1ca3c13ae5a7a8a09ce3f314c8449cbd397
font_01_sfnt_off00010cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CDA 11284 bytes
SHA-256: 5ea5bf0e2bd8f203eaa5dec8f1110c8a17e54923e1586f954eff6b901ad6579f

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