Malicious PDF — malware analysis report

Static analysis result for SHA-256 5980800075d0987a…

MALICIOUS

PDF

81.6 KB Created: 2021-01-19 16:41:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: dc4f1cac180a92ef249affb8f13a989c SHA-1: 2d8a2a7879723064f6f2c70f33bc41ee99672750 SHA-256: 5980800075d0987a0fbdb56ce8144e354bcba2fe36f62adcbda4e4f43ae85a21
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It employs social engineering by presenting a fake download button and a lure to install a browser update, aiming to trick the user into downloading a payload. The embedded URL points to a suspicious domain, likely serving as a distribution point for the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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
  • 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://trafffe.ru/123?utm_term=hxxp%253A%252F%252Fwww.mediafire+dot+com%252F%253F1i5ow2tz9z34df3 PDF link annotation
    • https://cdn.sqhk.co/gibuzini/hjhifoM/psoriasis_cream_prescription.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f9c0ea773c02.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/9capzkl/65876614830.pdfIn PDF document text
    • https://cdn.sqhk.co/kajurineg/RQhaGcZ/outliers_meaning_in_urdu.pdfIn PDF document text
    • https://cdn.sqhk.co/fabunavaxa/jagfOOG/95749723035.pdfIn PDF document text
    • https://cdn.sqhk.co/rogumabutur/apdSOgg/aquarium_fish_depot.pdfIn PDF document text
    • https://cdn.sqhk.co/fenozidu/cNugije/love_hacks_for_couples.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/4l8cUTx/tavunarit.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375204/normal_5ffa1d88340b8.pdfIn PDF document text
    • https://cdn.sqhk.co/salijuvam/jhjadge/rejusofitumonap.pdfIn PDF document text
    • https://cdn.sqhk.co/xesozugis/ehjjdgc/82387719804.pdfIn PDF document text
    • https://cdn.sqhk.co/sozasusu/cIhckji/sms_brandname_la_gi.pdfIn PDF document text
    • https://cdn.sqhk.co/kizofapekeku/4iegi5P/boxobowida.pdfIn PDF document text
    • https://cdn.sqhk.co/purizepore/hiSjbie/90953692390.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446400/normal_5fcbfc8bf1278.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472484/normal_5fd718073e642.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/jufowokedunod/69275275806.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/final_consonant_blends_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/45865691851.pdfIn PDF document text
    • http://najaxobefirag.epizy.com/rejidokudejal.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/best_free_vpn_apk_for_android_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D8 6240 bytes
SHA-256: cd12baa3d6e67907403f4fb4b9f4174618f6b33c7ab74b962b4162146e96eac0
font_01_sfnt_off0000fb35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB35 11112 bytes
SHA-256: a9df8739f345fb7c3b029bffdf3085363ddf81d265446e28b9d0ce1497a8c3c9
font_02_sfnt_off00012149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12149 16656 bytes
SHA-256: dd7c52020644caf89ad6a58109a116442b8b7243a8185881c98db2775bee5670

Open this report in the interactive analyzer, or submit your own file for analysis.