Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2bcb1083c380cb…

MALICIOUS

PDF

33.8 KB Created: 2021-06-27 18:29:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 91214dae8bcd6c534924a2464ffb37c7 SHA-1: 15510afc6862f21ddccdd9975a9410bbec9d875f SHA-256: 5c2bcb1083c380cb8f7291795769b30a6ce3e05d6fb2c135cc5c9714503bf546
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that redirect to a 'free generator / game hack' lure. The primary malicious URL identified is http://netcdn.co/app/431946152/free-faces-roblox-catolog-game-hack, which is likely intended to deliver a second-stage payload or lead to a phishing page. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-faces-roblox-catolog-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id//repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/tiktok-free-view-40_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-too-hack-in-superhero-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-lego-hacking-download_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-app_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-today-glitch_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/script-executor-roblox-download-free-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hackear-roblox-para-android_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/pubg-uc-yatrma-sitesi_GM1330123889.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-generator-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-2021-app-download_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-tool-apk-download_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E02 22496 bytes
SHA-256: b283bc079b2f9e983acd8950b68feb27d9709b5f24238cdd0d4fda19755305a8
font_01_sfnt_off00005ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF1 18752 bytes
SHA-256: 4e91177252206d7c58c5df565e85c871a5fd0a03d2c91b98c2c0e84005158520

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