Malicious PDF — malware analysis report

Static analysis result for SHA-256 352bd045af6a5cf9…

MALICIOUS

PDF

37.1 KB Created: 2021-05-23 18:04:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 000536b58d65518e03ed7ecfef15c818 SHA-1: a92c6459e223bab8dcf069ebe5c68f7cb293ab3b SHA-256: 352bd045af6a5cf9c18590869b05bad6180bcefe6a5a238cccec979f16f25b8c
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 0.9447

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/479516143/free-minecraft-servers-to-join-game-hack PDF link annotation
    • http://codicicolori.com/images/coin-master-support_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35B0 25848 bytes
SHA-256: a5c0f18aacfe4bee6a09cc0778aa0ccb5ea8598e22a7c15da718655730bb7fa2
font_01_sfnt_off000070cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70CF 17992 bytes
SHA-256: f4dddb1eb99788babbc28e2933b16aea696a65c0930c8e69ff3f00d50dcb50ca

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