Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0c149865ea2557…

MALICIOUS

PDF

50.4 KB Created: 2021-05-18 00:30:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: a2f553ce12652210633bf88efc94e192 SHA-1: 86d398be769ed878661bc61da9f282a647578e3e SHA-256: 0e0c149865ea25572576a73d5e246fabcfb9732900704f24bce20e087886e1b2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, identified as malicious redirectors, that promise free in-game currency or hacks. The document body and extracted URLs strongly suggest a social engineering lure to trick users into visiting potentially harmful sites. The ML classifier also flagged this PDF as malicious, reinforcing the assessment of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8594

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/431946152/free-robux-no-verification-2021-android-game-hack In PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/cm-spins_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/more-robux_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e4b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E4B 25348 bytes
SHA-256: 93e66b686608647b9660e5377fc32115ce20aa1a01ab2a39508e681ae0fde886
font_01_sfnt_off00008914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8914 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000092fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92FA 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off00009fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FA2 19176 bytes
SHA-256: 2db8195158682863467aa5049c27493158ce29af4e73d213a7d216c5b0c72741