Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f2349c2e7458437…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 21:26:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 01d504c4f425393d26c5be9596d23e08 SHA-1: 20bd8e5ee5f231137bf4957acb74c7cffcf4b440 SHA-256: 1f2349c2e7458437db50b2664a6d4add2ebc482bbd51f156cc16c51d20b270f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure appears to be a 'Coin Master App Hack' leading to the URL http://netcdn.tw/app/406889139/coin-master-app-hack-game-hack. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-app-hack-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-hacks-easy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-a-free-item-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/dsploit-hack-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-into-a-youtubers-roblox-account_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-bypass-the-roblox-cheat-engine-bypass_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-shirt-roblox-boy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-jojo-blox-hack-script_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-alternative_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-obc-hack-no-survey_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/one-time-payout-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-roblox-accounts-2021-july_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-promo-codes-march-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-sign-up_GM431946152.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_off00002f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F40 22816 bytes
SHA-256: 3f21f02e6e4364157215d941a8751c53af577a3c9b88df3003faaedd2ac717d1
font_01_sfnt_off00006276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6276 18180 bytes
SHA-256: 7da720255189ee7148b3a15459f8235b370ac0c6f406201341355dab7c471ca0

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