Malicious PDF — malware analysis report

Static analysis result for SHA-256 59f569c26a802296…

MALICIOUS

PDF

44.9 KB Created: 2021-05-14 13:03:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c316d6630f48a936cfe774be91b41d85 SHA-1: 016b2d5821262be6de5e87c9c388411c0c5712d4 SHA-256: 59f569c26a802296827f2b51adf0644479955d15bf3946b1ba0020257c7a2bcf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is malicious, specifically linking to known malicious redirector infrastructure. The document body and embedded URLs promote free game hacks and generators, aiming to trick users into clicking the malicious link. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • 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.
  • 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 https://netcdn.xyz/app/479516143/minecraft-rtx-download-free-game-hack In PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/coin-master-free-online_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/robuxmatchcon_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A51 24492 bytes
SHA-256: 32076eaeeec5c796caf4be39716f01b6ea83483be864de32404da18be20cfdee
font_01_sfnt_off00008209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8209 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off00008c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C49 18500 bytes
SHA-256: 5f3bdd779ddaacede8957d9864e28e9a9e9e2ea303e248dbf894cd003605836d