Malicious PDF — malware analysis report

Static analysis result for SHA-256 885047199dec1136…

MALICIOUS

PDF

46.7 KB Created: 2021-06-03 07:28:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 20076608eb09d789a2705660d526a40c SHA-1: 4e69cce2bf7e0ae8c324cef46fbfc0fd50982ab3 SHA-256: 885047199dec1136b9c50b521e1573a355fe852e9e17aac1b4b751b48399e233
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with a 'free generator / game hack' theme, indicating a phishing or scam attempt. The presence of embedded URLs and a visual download button further supports this malicious intent. No scripts were extracted from this sample, but the document's structure and content strongly suggest it is part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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/coin-master-hack-2021-without-verification-game-hack In PDF document text
    • http://moneymaker-gold.de/files/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/grabpoints-robux_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://moneymaker-gold.de/files/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://moneymaker-gold.de/files/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/free-800-robux_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://moneymaker-gold.de/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000500c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x500C 24564 bytes
SHA-256: 1e91b1902645672eb7615704f8f0304fcfa5592502ba6b725d129f5f96c683bc
font_01_sfnt_off0000882b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882B 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00009211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9211 18756 bytes
SHA-256: 8aa4e312459bb9d5d616f22e45372e364c039c39adebed3f09684cd63dbfffd3

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