Malicious PDF — malware analysis report

Static analysis result for SHA-256 e37e663217a59ee2…

MALICIOUS

PDF

48.9 KB Created: 2021-06-09 06:42:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 10225415420140eca4607c36258d00ff SHA-1: 694c1c903eb0553b89f594fd47858c9384f1ccd5 SHA-256: e37e663217a59ee29940f271aa53b793907f8086320d94572391c314339bcc1f
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains a high-confidence lure for game hacks and impersonates Amazon to facilitate credential phishing. The embedded link directs users to a suspicious URL that is likely part of a phishing or malware distribution chain. No scripts were extracted, but the PDF structure and embedded URIs strongly indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.tw/app/431946152/glasses-roblox-free-game-hack.
  • 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.tw/app/431946152/glasses-roblox-free-game-hack PDF link annotation
    • http://cosver.eu/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-outfits_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://cosver.eu/images/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://cosver.eu/images/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • http://cosver.eu/images/make-robux_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/roblox-cp_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-group_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
font_00_sfnt_off00004fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FBD 29936 bytes
SHA-256: cc7e6b401630f218193175bce62b5a7bbc9f7700e736e4d164fa78c36be65729
font_01_sfnt_off000092c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C4 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CD3 18176 bytes
SHA-256: 4dd7ad0310ac915752b02d4653390200f1ab698cada029db437a0745a584f7e1

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