Malicious PDF — malware analysis report

Static analysis result for SHA-256 210b1a08f6a6234b…

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 06:42:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 3a5d760d05696fb52b97374025cb2b80 SHA-1: edb7177bcfce8b5f4c13c6bed58b4e0120a0d20b SHA-256: 210b1a08f6a6234b4dfb7f967bf1f20db1e3cbd9d208c59647f4d3c8e98de681
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at 'https://netcdn.online/app/406889139/how-to-hack-m-coins-mcpe-master-game-hack'. The document body and heuristics indicate a lure related to game hacks and generators, suggesting the intent is to redirect users to potentially malicious content or download sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/406889139/how-to-hack-m-coins-mcpe-master-game-hack In PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/client-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/easy-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/wwwcoin-master-hack-apk_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
stream_004_off0000525e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x525E 28152 bytes
SHA-256: 9b11ae860133c0e88b1bb2ae3bae8033939bddf352916a1936ef35095c424e13
font_01_sfnt_off00009336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9336 18056 bytes
SHA-256: b9a677f3ada20553b3a09ae09d1cc018ae00059cde0233d02195c796eebbdcfd

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