Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b20f9468e439215…

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 08:00:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c9561d045fb12c2b0a51089014f00e61 SHA-1: 810aa0585da1abfb7a931b610b97fff40bb86b26 SHA-256: 1b20f9468e439215e8d4d6a1840cf12e8ee4113238580e1219a470c9d1be2390
82 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is a lure for game hacks and redirects to external URLs. The document body, though heavily obfuscated, contains a URL that aligns with the heuristic findings. The primary goal appears to be tricking the user into visiting a malicious site, likely to download further malware or engage in a scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • 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.
  • 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.online/app/406889139/daily-free-spins-coin-master-2021-game-hack PDF link annotation
    • http://www.peterbarsony.com/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/tiktok-free-nose-job_GM835599320.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/pokemon-go-free-walk-android_GM1094591345.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000544f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x544F 26712 bytes
SHA-256: 72b765e37ba3b3c1d8b3c390937ce7d8c4c373790fb77f503ef76a9eb2befb1d
font_01_sfnt_off0000912e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x912E 18708 bytes
SHA-256: 76af36f54327e394f6a0995f5c1804c6d580e71cb7eebf938ec25838add40309

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