Malicious PDF — malware analysis report

Static analysis result for SHA-256 e545f0cb310b1cbc…

MALICIOUS

PDF

41.3 KB Created: 2021-05-19 14:15:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0ea2144d8974eff8f539c9c8bf756260 SHA-1: 2b18dbeeed47925865b051bb0c579d06e0387808 SHA-256: e545f0cb310b1cbc80c0090adf14a87cbac122591bbff6e2a8b97e00062fb212
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a game hack lure to entice users to click on a malicious URL. The primary URL, https://netcdn.xyz/app/1094591345/pokemon-go-free-nickname-game-hack, is flagged as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to deliver a second-stage payload or lead the user to a phishing site.

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/1094591345/pokemon-go-free-nickname-game-hack PDF link annotation
    • http://arkivthy.dk/images/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/offers-for-robux_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-hacks-for-free-spins_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
stream_003_off000048c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48C4 24152 bytes
SHA-256: 6a68acd6fc0acd2c12572c2e139e0b03c44b1d9d23c77136fd87be7511c0b54e
font_01_sfnt_off00007f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6C 18192 bytes
SHA-256: 98b397a1c65078068e3db80774f8ec9c4b9e2be2f9c44ab12a0cee2bafc928b2