Malicious PDF — malware analysis report

Static analysis result for SHA-256 680451ce5a351713…

MALICIOUS

PDF

159.3 KB Created: 2021-04-04 18:56:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 432bbc3b42c6a7a54a11a3b613e18481 SHA-1: 1dfe79da08776c58a7723c41c585bc91162a9dbb SHA-256: 680451ce5a3517138a8f1516d1e6220ec1d7b5b19bc1090ae4ab717d4391f620
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 0.9993

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://resalured.ru/strik?utm_term=diablo+2+patch+1.13+download PDF link annotation
    • https://turoliletipusu.weebly.com/uploads/1/3/5/9/135969349/7249052.pdfIn PDF document text
    • http://useporte.xyz/eagle_scout_book_requirementsz3hh6.pdfIn PDF document text
    • http://siondez.ru/73002150765uaxi5.pdfIn PDF document text
    • https://zadukali.weebly.com/uploads/1/3/5/3/135340438/vaxagafef.pdfIn PDF document text
    • http://goldenframecollision.com/75920432453373gn.pdfIn PDF document text
    • https://kavosimodo.weebly.com/uploads/1/3/4/9/134901779/16624e4b2a5f.pdfIn PDF document text
    • http://perfectiona.online/mimadusezoxabidxcsob.pdfIn PDF document text
    • http://stakingyfi.com/el_completo_manual_del_suicida_onlinex3786.pdfIn PDF document text
    • http://bigwin-1xbet.fun/31377589807k1het.pdfIn PDF document text
    • http://copyrights-notices-helps.com/purawirok8g6xr.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/wewiro/dell_optiplex_780_display_drivers_for_windows_7_64_bit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28b773ca-65e5-411b-b02e-dafd9fc8c009/gapizamilijugu.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/62455332977.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/67455039132.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70d602c3-d0e1-4382-bc8f-f113a1f4f021/jegapeveterulixipon.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/gibukiripu.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/35522129448.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/links_awakening_switch_walkthrough_zelda_dungeon.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/dizekizulukisajijik.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11840 86848 bytes
SHA-256: 0574dc6050968fa2b6595a56baeaa0bef1b8fee60d8be98cc0535a67fac937a2
font_01_sfnt_off00021d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21D18 5500 bytes
SHA-256: ebf7d2b7ee1381401c6ae49d3bdfd36fbb2a9f55fd76dc894a30cd85706395fc
font_02_sfnt_off00022fe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22FE7 12580 bytes
SHA-256: 402ecb66156ab36be29d847b667bab7005b861b5e56eae25f076bfb52421cdac
font_03_sfnt_off000258f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x258F2 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848

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