Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc89525b0fc0daa7…

MALICIOUS

PDF

43.0 KB Created: 2021-05-18 01:08:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b14258dd4d4bea96472f26ac569bafe2 SHA-1: 6821e353279ab70a7c942c7bf8c6f4305997638a SHA-256: cc89525b0fc0daa7195344eeb47c03e4abffa611739bbbdd9d33a635aae3eec8
82 Risk Score

Malware Insights

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

The PDF document contains multiple links to external websites, with a high-confidence heuristic identifying a 'free generator / game hack' lure. The document body, though heavily obfuscated, contains references to Roblox and game hacks, reinforcing the lure. The embedded URLs likely lead to malicious content, such as malware downloads or phishing pages, intended to exploit user interest in free game items. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/roblox-free-pants-game-hack PDF link annotation
    • http://dana1157.com/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://dana1157.com/images/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://dana1157.com/images/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-free-spin-no-offers_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/free-pe_GM479516143.pdfIn PDF document text
    • http://dana1157.com/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/free-roblox-followers_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-32-android-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/online-coin-master-free-spin-app_GM406889139.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
font_00_sfnt_off00004b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B93 25320 bytes
SHA-256: 7ade331f7e054b355ecb259062c0b1cb59816fd0bd10e56e545f2a889de52276
font_01_sfnt_off00008547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8547 18436 bytes
SHA-256: 78f3703c71bf5a91131aef5e2f3ca285f6435d0e4871a8e776917510e9a384af

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