Malicious PDF — malware analysis report

Static analysis result for SHA-256 5603d8f9c23df9e4…

MALICIOUS

PDF

42.0 KB Created: 2021-05-19 07:57:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 36a21873bd42dbd8ca15cca2b8e5efb6 SHA-1: 597122d98dbc9dcc540e720810ac0b01466fb6c2 SHA-256: 5603d8f9c23df9e45395f3a95d1a782164b43c292456b9df9f5854dc66c58236
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs and a heuristic firing for a game hack redirect lure, indicating a social engineering attempt to trick users into visiting malicious sites. The document body, though partially corrupted, also contains references to game hacks and URLs, reinforcing the lure. No scripts were extracted from this sample, but the presence of numerous malicious links suggests the primary goal is to redirect users to potentially harmful content.

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/479516143/minecraft-pe-hacks-game-hack PDF link annotation
    • http://schoolsupportandbeyond.org/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/oprewards-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_003_off00004ade.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ADE 25144 bytes
SHA-256: adb1b234fd3210116b096465bed33f7d903b699d715232a7f8c28bbcc66cb518
font_01_sfnt_off00008358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8358 17892 bytes
SHA-256: fda2b16deba9a1c4b3626a8ad3479d009d1f56903d8778c05817a0c1608b8b5f

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