Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f022cc056e4cd96…

MALICIOUS

PDF

43.9 KB Created: 2021-05-15 22:19:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fdebe559db943998a89485c51a87ea3d SHA-1: 663023cbf5fbfc58c314cd95efb5d1e31659adc3 SHA-256: 2f022cc056e4cd96329fd8ce850f718df7b7809cfc765112eb8947911e7768c9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded links, many of which point to files hosted on 'hbpbenin.com' and 'netcdn.xyz', suggesting a link farm designed to distribute malicious content. The document body and heuristics indicate a lure for game-related cheats or downloads, aligning with common social engineering tactics. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/hack-coin-master-pc-game-hack
    • https://hbpbenin.com/images/free-minecraft-realms-to-join_GM479516143.pdf
    • https://hbpbenin.com/images/free-spins-coin-master-ios-links_GM406889139.pdf
    • https://hbpbenin.com/images/free-robux-websites-no-human-verification_GM431946152.pdf
    • https://hbpbenin.com/images/coin-master-free-spins-link-2021_GM406889139.pdf
    • https://hbpbenin.com/images/free-spins-on-coin-master-hack_GM406889139.pdf
    • https://hbpbenin.com/images/hack-coin-master-game-apk-download_GM406889139.pdf
    • https://hbpbenin.com/images/how-to-get-free-robux-without-verifying_GM431946152.pdf
    • https://hbpbenin.com/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • https://hbpbenin.com/images/multiplayer-master-hack-coins_GM406889139.pdf
    • https://hbpbenin.com/images/free-coins-and-spins-coin-master_GM406889139.pdf
    • https://hbpbenin.com/images/coin-master-free-spin-and-coin_GM406889139.pdf
    • https://hbpbenin.com/images/how-to-get-minecraft-for-free-on-android_GM479516143.pdf
    • https://hbpbenin.com/images/how-to-earn-robux-fast_GM431946152.pdf
    • https://hbpbenin.com/images/free-robux-without-human-verification-2021_GM431946152.pdf
    • https://hbpbenin.com/images/free-games-coin-master_GM406889139.pdf
    • https://hbpbenin.com/images/coin-master-gift-link_GM406889139.pdf
    • https://hbpbenin.com/images/free-spins-coin-master-hack-2021_GM406889139.pdf
    • https://hbpbenin.com/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdf
    • https://hbpbenin.com/images/how-many-levels-in-coin-master_GM406889139.pdf
    • https://hbpbenin.com/images/minecraft-maps-pe-free-download_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000484b.bin
f446046d3fc8d052fc5f73c7d72f39e13e1696f90a4075ce1f6322c295c71e6a
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x484B 24512 bytes
font_01_sfnt_off0000804b.bin
3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
pdf-font-stream PDF embedded font (sfnt) at offset 0x804B 2840 bytes
font_02_sfnt_off000089fd.bin
d0fcbd0a52ba681250a66b5fd254fe701dbce3b80d82eca2366e1a97fce9e3f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x89FD 17868 bytes