Malicious PDF — malware analysis report

Static analysis result for SHA-256 5660ef99736fca3c…

MALICIOUS

PDF

47.9 KB Created: 2021-06-11 03:24:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9eb00ac469a698255ef2b0cdd40c8a9a SHA-1: 5f8be6c17b20a5cce3f31fa21d4f1323d0c955bc SHA-256: 5660ef99736fca3c48164b5b9a58fa6d1569ac51ff6ef66ca72d6967daac640f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free generators, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the presence of multiple embedded URLs associated with game hacks further supports this. The document body, though partially corrupted, contains references to the malicious URL and appears to be part of the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/how-to-download-roblox-hacks-2021-game-hack In PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005099.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5099 26248 bytes
SHA-256: ba6fb2a2d9037207ad982e4506a69156ddb1d651c43efcb52dcfb76e53d8614f
font_01_sfnt_off00008ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA1 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000958c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x958C 19092 bytes
SHA-256: 10e625e1e3c3a9fa1e523341d8146792ccbced9606ed7d0c86c81700989c45de

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