Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be53416e406ca1a…

MALICIOUS

PDF

45.0 KB Created: 2021-05-19 17:14:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b1d1c4265efd0a4f47dc76bac0c14088 SHA-1: 6df8eac73eee7c3ae640462e595b3a1d56a378b3 SHA-256: 2be53416e406ca1a06a07e59e57eb5c0e0f572a77ed24dab5adc719236c2097d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a game hack, directing users to a malicious URL. The ML classifier also flagged the PDF as malicious. The presence of multiple game-related lures suggests a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/406889139/no-human-verification-hack-for-coin-master-game-hack PDF link annotation
    • http://fm-express.de/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/coin-master-invite-friends-free-spins_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://fm-express.de/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/roblox-images_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/pokemon-go-free-eggs_GM1094591345.pdfIn PDF document text
    • http://fm-express.de/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://fm-express.de/images/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://fm-express.de/images/coin-master-daily-free-spins-link-2021_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049db.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49DB 25828 bytes
SHA-256: b7d598dc7c03eb6ceef539fffdebce6dc06d7c97f42c91ec84978f0b90db13d7
font_01_sfnt_off00008351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8351 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D02 18416 bytes
SHA-256: e2def261e9c0d489920ca96f0bc353b112c40b7f6e818ee8e160ca61827c750c

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