Malicious PDF — malware analysis report

Static analysis result for SHA-256 89504337e0862b77…

MALICIOUS

PDF

35.0 KB Created: 2021-07-01 23:21:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: f8a76f0ad927829897ade312ac1a14a0 SHA-1: 5c4511952a74b9ef0458980438a54ed44d3db16a SHA-256: 89504337e0862b77dbb024e9cc6d9b6cad57c6317312d3c7835e677aa82cf2e8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators for popular games like Roblox and Coin Master. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting malicious sites. The primary attack pattern involves using a malicious attachment to redirect users to potentially harmful content.

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.co/app/431946152/cheat-engine-for-roblox-2021-game-hack In PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/hack-para-roblox-jailbreack-coat-y-muchos-mas_GM431946152.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/get-free-robux-today-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/roblox-website-robux_GM431946152.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/roblox-hack-rs-2021_GM431946152.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/roblox-free-v-bucks_GM431946152.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/how-to-robux_GM431946152.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.pasangindovisionjogja.com/ckfinder/userfiles/files/how-to-get-free-money-in-restaurant-tycoon-roblox_GM431946152.pdfIn PDF document text
    • https://pasangindovisionjogja.com/ckfinder/userfiles/files/how-to-hack-coin-master-with-root_GM406889139.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_off000030db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DB 22392 bytes
SHA-256: dcfacc5cfba00fbdcd9573760fceb9502ff8edd9bf48f4e2ba2f57eda75a0c52
font_01_sfnt_off000062b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B8 19444 bytes
SHA-256: 0258e8956ca704f84e7c7b0fea3d3e018d72a473bae9c5de56591faca57c45b3

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