Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a14eca1bb5e3e83…

MALICIOUS

PDF

49.7 KB Created: 2021-05-14 03:40:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 574526c41b53033ccb2f0ae6888b7c4c SHA-1: 346f7a5184c5b2208d9d061ef1a3550594aa2786 SHA-256: 5a14eca1bb5e3e834260b485629d5bc776c434d5ccc4dd2166ec36e65efc35ea
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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/how-you-get-free-robux-game-hack PDF link annotation
    • http://elitesoftsolutions.com/images/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/demon-roblox_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/robux-giver_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/earn-robux-com_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4864 26060 bytes
SHA-256: a3162358778c6285dee297a6ca0f4655eab82a9f0d6c4fa6da7279b5568cbee0
font_01_sfnt_off0000856a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856A 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off0000920d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x920D 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off00009f1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F1F 18444 bytes
SHA-256: d3aeb47c5138bb2f7afdc1cd1986e008461219f841fd4d3ae6acb877e9db5a0e

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