Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3b674ac94345982…

MALICIOUS

PDF

35.6 KB Created: 2021-06-26 12:49:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 835a2bcadff9891e58908c5f06de0215 SHA-1: 6b033d0b650a439562057aaa34b1708b97b6f484 SHA-256: c3b674ac9434598208d42dc42d8e456666c8cc5bcdba46bd17be1c0a22a73d0a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains numerous embedded URLs and a prominent external URI pointing to sites offering game hacks and free spins, indicating a lure for potentially unwanted or malicious software downloads. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, but the presence of multiple malicious links and the ML detection provide high confidence in the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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 http://netcdn.co/app/431946152/roblox-legendary-football-hack-feb-2021-game-hack
    • http://perpus.wdh.ac.id/repository/coin-master-free-spins-apple_GM406889139.pdf
    • http://perpus.wdh.ac.id/repository/getrobux-now_GM431946152.pdf
    • http://perpus.wdh.ac.id/repository/coin-master-get-free-spins_GM406889139.pdf
    • http://perpus.wdh.ac.id//repository/coin-master-hack-spins-download_GM406889139.pdf
    • http://perpus.wdh.ac.id//repository/minecraft-java-free-account_GM479516143.pdf
    • http://perpus.wdh.ac.id/repository/hacks-for-roblox-on-phone_GM431946152.pdf
    • http://perpus.wdh.ac.id/repository/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdf
    • http://perpus.wdh.ac.id//repository/play-roblox-for-free-on-google_GM431946152.pdf
    • http://perpus.wdh.ac.id//repository/coin-master-heaven-free-spins-link-2021_GM406889139.pdf
    • http://perpus.wdh.ac.id/repository/how-to-hack-other-peoples-accounts-on-roblox-2021_GM431946152.pdf
    • http://perpus.wdh.ac.id/repository/roblox-com-games-referrer-roblox-player_GM431946152.pdf
    • http://perpus.wdh.ac.id/repository/free-robux-by-watching-ads_GM431946152.pdf
    • http://perpus.wdh.ac.id//repository/coin-master-hack-version-download-2021-android_GM406889139.pdf
    • http://perpus.wdh.ac.id/repository/robux-for-free-not-fake-bt-scammer-kid2021_GM431946152.pdf
    • http://perpus.wdh.ac.id/repository/how-to-win-free-robux_GM431946152.pdf
    • http://perpus.wdh.ac.id//repository/kuso-icu-roblox-hack_GM431946152.pdf
    • http://perpus.wdh.ac.id//repository/coin-master-free-spin-sites_GM406889139.pdf
    • http://perpus.wdh.ac.id/repository/hack-para-tener-robux-en-roblox-2021_GM431946152.pdf
    • http://perpus.wdh.ac.id//repository/free-minecraft-skins-ps4_GM479516143.pdf
    • http://perpus.wdh.ac.id//repository/coin-master-2021-free-spins-link-today_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030d3.bin
4ccf3b9a395b232f76c4e965d430584bfc40762efa18235012d7314f1bc903da
pdf-font-stream PDF embedded font (sfnt) at offset 0x30D3 22920 bytes
font_01_sfnt_off0000641e.bin
63a3ea6db98df17ec081c7773a5adefaa309bb3c4c93c1af2b1f20072368140c
pdf-font-stream PDF embedded font (sfnt) at offset 0x641E 19680 bytes