Malicious PDF — malware analysis report

Static analysis result for SHA-256 24f27b141401cdc7…

MALICIOUS

PDF

34.3 KB Created: 2021-07-21 03:57:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 41fdc0d048a55855d0b1afa943e200db SHA-1: fdf9d5cd7e9291084430b35ce8b0a6b37dc21538 SHA-256: 24f27b141401cdc7a1a1dc35e9d237a0a6c7171ab3dddd69e87368f89f8410e8
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, aiming to trick users into clicking malicious links. The document contains multiple embedded URLs that lead to redirectors and potentially malicious content, including a primary redirector at http://netcdn.tw/app/479516143/was-minecraft-ever-free-game-hack. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to lead users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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
  • 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 http://netcdn.tw/app/479516143/was-minecraft-ever-free-game-hack In PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/tiktok-free-fans_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FB 22904 bytes
SHA-256: a831d73e77e95c72b99a7f2ed5b1bb6308726d02c65153508755e88c16f5b8d2
font_01_sfnt_off0000657c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657C 17880 bytes
SHA-256: fa9564ce5793f03604dae66ea4261aaef87f9e1e7420b634dd5196a1b51aa919

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