Malicious PDF — malware analysis report

Static analysis result for SHA-256 93e6bb5976cc0cfc…

MALICIOUS

PDF

54.4 KB Created: 2021-05-11 13:17:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2a6117e1c1633fa44b9991038f4ffe09 SHA-1: d61a5ce4c011d5ee5b0ae66ba05bb79e6c9f0be3 SHA-256: 93e6bb5976cc0cfc5f93a89bd77485315a811ee324c579ee5b729094ba6bf9c4
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 0.8602

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/coin-master-free-chip-game-hack PDF link annotation
    • http://www.gadanie.lv/images/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.gadanie.lv/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-website_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-cheat-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a12.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A12 26176 bytes
SHA-256: c49a7ee8f3278a2997bc31d0819ba24647d5b4cacef66f13d2eaec9599aaa8c4
font_01_sfnt_off00008699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8699 3088 bytes
SHA-256: e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222
font_02_sfnt_off00009164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9164 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000a489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA489 18052 bytes
SHA-256: ba3acf3ed697f48690604da7cc833c5df3eb06befc0ffeb0890f4c11738fad23
font_04_sfnt_off0000c5b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B2 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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