PDF static analysis report

Static analysis result for SHA-256 c832b65b238571cc…

SUSPICIOUS

PDF

52.0 KB Created: 2021-06-08 13:39:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: eecae625f1e32ea9ec315275887f071e SHA-1: eaa873729f188d87e892247c64123f1dce474a5f SHA-256: c832b65b238571cc4b7400fdfc8c7c816e4ed302c61ef4427d9b82a098301d5d
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple lures for free in-game currency and game hacks, directing users to a URL hosted on netcdn.tw. The ML classifier flagged this PDF as malicious with a high probability. While no scripts were directly extracted, the presence of external URIs and the nature of the lures suggest an attempt to trick users into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9464

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/glitch-to-get-free-robux-2021-game-hack PDF link annotation
    • https://www.ak-oroslavje.hr/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/best-way-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/pokemon-go-free-and-home-transfer_GM1094591345.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/game-give-free-robux_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_004_off00005190.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5190 25996 bytes
SHA-256: 490ce8b0adb7239028a7480740aecfa6cf52f5f3329803dcd5db9f6086e11b24
font_01_sfnt_off00008ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC3 7420 bytes
SHA-256: 0b188308ab0e7ffce9913d63d697a586f2937cafc51a771db38e3a566cd37e24
font_02_sfnt_off0000a733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA733 18880 bytes
SHA-256: 11f0819b8ff1069104b34f61873642a115162aac0ff7b8442a2f6c1cf905faf9