PDF static analysis report

Static analysis result for SHA-256 f19fff384790cea8…

SUSPICIOUS

PDF

44.2 KB Created: 2021-06-07 02:57:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a48812a81977941b17619e8b4bfb8485 SHA-1: 30109663dae505e748dfe3bfb0e8c806112b6577 SHA-256: f19fff384790cea81883b3b3f7ec1f94d34913472cedd6cb6070b42dded1e3ad
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier strongly indicated maliciousness, and the document contains multiple embedded URLs pointing to game-related lures like 'free Robux' and 'free spins'. These URLs likely lead to the download of a second-stage payload. The presence of PDF_URI and EMBEDDED_URL heuristics further supports this, suggesting a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 3

  • 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/free_psy-roblox-game-hack PDF link annotation
    • https://unsla.uns.ac.id:443/pgsd/repository/free-bobux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/tiktok-free-music_GM835599320.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-make-a-free-roblox-shirt_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-hoe-to-get-extra-free-spins_GM406889139.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_004_off0000509a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x509A 25224 bytes
SHA-256: cc2248f963f330803927fc2a81315345aa8f72316f1afeddac9bdfb1035fe4c9
font_01_sfnt_off00008a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A10 18336 bytes
SHA-256: f68d51413f12b3e6d045c1e92a371418a701095e47de227e46a8c3b44ae27bc8

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