Malicious PDF — malware analysis report

Static analysis result for SHA-256 3edaa171a17c1e2d…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 01:02:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ebdb75e187e74780c01d6a58971049bd SHA-1: 62bf435b3809cb9b341dd664d7d98e0c07a01859 SHA-256: 3edaa171a17c1e2da28595586890f0378a4cb3bcddfbf55474ec74523510af79
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure related to game hacks and free in-game currency to entice users. It contains multiple embedded URLs, including one pointing to 'netcdn.tw', which is flagged as a redirector for game hacks. The document's structure and embedded links suggest it is designed to lead users to potentially malicious websites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/free-spin-coin-master-link-2021-game-hack PDF link annotation
    • https://i-photo7.com/image/data/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/robux-hack-that-saves_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-dino-cheat_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/hacks-para-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-hack-in-roblox-jailbreak-speed_GM431946152.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_002_off000031bf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31BF 22708 bytes
SHA-256: e0b9b4296d47e7cd3416324d62efa1cdccf749c4203632372a2adc9c8a853d6c
font_01_sfnt_off00006483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6483 18748 bytes
SHA-256: 21e227a5b4a4e86201c5ffd53a68098e06ad4a81ecbeade678e9824eb4386a01