Malicious PDF — malware analysis report

Static analysis result for SHA-256 452dc2bd8e880f66…

MALICIOUS

PDF

41.3 KB Created: 2021-05-17 03:06:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: bde45b2d46dc31b1907f64333a1f0afc SHA-1: b6c7fe70ce5610177e2455802528741dfd8d9e32 SHA-256: 452dc2bd8e880f66ae77713f167219a81e7fdd04ef7e02b28eed3f6677cee5ee
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, specifically promoting 'game hacks' and 'free robux' lures. The primary link directs to a known malicious infrastructure associated with game-related scams. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-hack-apk-download-for-android-game-hack In PDF document text
    • https://shjbottle.com/upload/files/free-domain-for-minecraft-server_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/get-robux-com_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-roblox-intros_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/toolbox-mod_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-hack-roblox-2021_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004825.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4825 24012 bytes
SHA-256: f9a7725ce055137fc47335dbdc8808092c501c1e76c725d952dea5f081364efc
font_01_sfnt_off00007e1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1E 18636 bytes
SHA-256: fa7a6da1b4bcc113a0958a5ae0d8c2ab7d580afb69fd53804aad306f80425e53

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