Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab85162d735c358…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 09:36:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 29da73764376c657b1cd4f0e1d2d5744 SHA-1: 3d33133d9b115386343e9f1c747cec8c63f74427 SHA-256: dab85162d735c3580a06a812028fc753c56167982753731d59d2a9efafd47276
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action phrase, indicating an attempt to lure users to download content. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple URLs related to game hacks and free currency suggests a phishing or scam attempt. While no scripts were directly extracted, the document's structure and embedded URIs point towards a malicious download lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/how-to-get-free-robux-games-game-hack
    • http://skwolcott.com/images/easy-way-to-get-free-robux_GM431946152.pdf
    • http://skwolcott.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
    • http://skwolcott.com/images/how-to-get-more-robux_GM431946152.pdf
    • http://skwolcott.com/images/hack-coin-master-iphone_GM406889139.pdf
    • http://skwolcott.com/images/best-minecraft-hacked-client-2021_GM479516143.pdf
    • http://skwolcott.com/images/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdf
    • http://skwolcott.com/images/free-100-robux_GM431946152.pdf
    • http://skwolcott.com/images/robux-hack-free-robux_GM431946152.pdf
    • http://skwolcott.com/images/free-spins-for-coin-master-on-1-19-19_GM406889139.pdf
    • http://skwolcott.com/images/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdf
    • http://skwolcott.com/images/spin-hack-for-coin-master_GM406889139.pdf
    • http://skwolcott.com/images/free-appsfor-coin-master-daily-rewards_GM406889139.pdf
    • http://skwolcott.com/images/roblox-help-free-robux_GM431946152.pdf
    • http://skwolcott.com/images/link-for-free-spins-on-coin-master_GM406889139.pdf
    • http://skwolcott.com/images/free-robux-generator-no-verification-2021_GM431946152.pdf
    • http://skwolcott.com/images/free-robux-on-phone_GM431946152.pdf
    • http://skwolcott.com/images/is-free-robux-real_GM431946152.pdf
    • http://skwolcott.com/images/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdf
    • http://skwolcott.com/images/free-robux-games-on-roblox_GM431946152.pdf
    • http://skwolcott.com/images/coin-master-spin-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004802.bin
d87ba90e136572ea299e42b314559485b2c0ee4c0cddefe48c721fc040eb4d1a
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4802 25260 bytes
font_01_sfnt_off000082d8.bin
74af7b276be90ab21c0e7dcb14cd01490825a1e3676e4ac56c72ff4325b6c294
pdf-font-stream PDF embedded font (sfnt) at offset 0x82D8 19420 bytes