Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6e2ca2a526031d…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 20:20:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 8c6556fd4f5f6bb5685c295e5b45dc00 SHA-1: e50f312da5531dd449091716f245dbf7401e4bf8 SHA-256: ce6e2ca2a526031dcffed3347fcdcd008f05c0b38e1d06a90ecaae32e1f7ffe8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure for free game currency or hacks, directing users to a malicious redirector. The document body and heuristics indicate a redirection to potentially malicious infrastructure. While no scripts were extracted, the embedded URLs and the nature of the lure suggest an attempt to lead the user to a site that may host further malware or phishing 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.tw/app/431946152/how-to-get-free-robux-2021-easy-game-hack In PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/cute-drawings-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/cheat-jailbreak-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/ajc-rome-tech-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/how-to-get-free-robux-instructions_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/cheat-codes-for-knives-in-murder-mystery-2-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-perm-admin-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/how-to-make-free-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/oginject-co_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/hack-dday-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/fake-gps-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-coins-and-spins-for-coin-master-game_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_off00002eb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB5 22576 bytes
SHA-256: 38dab2c4b71506fbadd0043a17deca8d08be7683a74b456c0dd7b3c18312f463
font_01_sfnt_off000060f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F5 19568 bytes
SHA-256: 54573245d87bf425d09f38ae69d600f60ea89f6a8aa7cff0a6b46d42a5179ab9

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