Malicious PDF — malware analysis report

Static analysis result for SHA-256 284220963b1e75f7…

MALICIOUS

PDF

46.3 KB Created: 2021-05-14 21:33:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 768da32cc2e6e56abc1dc97e0c733313 SHA-1: 7d08e9a192597f663350d9608d5c8a170079cb33 SHA-256: 284220963b1e75f794da5fa9df3f2c2ab045aa78104cacd785aeed209d3350ce
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-spins-and-coins-coin-master-game-hack PDF link annotation
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/roblox-tracker_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/withdraw-robux_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/roblox-source_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://www.era.org.in/era/assets/uploads/ckeditor/files/how-to-get-free-robux-on-roblox_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_003_off00004c7d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C7D 29556 bytes
SHA-256: 24ea3ee7dc70422a8a9501dbb12bc92c5ba899b2b5341f8a95e081e72275dba7
font_01_sfnt_off000089a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A0 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9352 18060 bytes
SHA-256: d4954d2d00bde9f6a1061857a61d2c62c1ae360f44744af150ee923481526d51

Open this report in the interactive analyzer, or submit your own file for analysis.