Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3015aee03136b3d…

MALICIOUS

PDF

34.9 KB Created: 2021-06-28 17:14:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: af8b3abba7537bc857f00c83b09a9f85 SHA-1: 1f9d5adea338ae02694321956b3a2fe530ca0000 SHA-256: b3015aee03136b3d67f53fdf56759956daa4497d9d2527babdaac0961059f924
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'free generators'. The primary lure URL is http://netcdn.co/app/431946152/can-you-only-hack-roblox-once-game-hack, which is designed to trick users into downloading potentially unwanted or malicious software. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a social engineering attack aimed at driving traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/can-you-only-hack-roblox-once-game-hack In PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-van-candy-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-reddit-hacks_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-making-hacker-smilator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/tiktok-free-robux-codes_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-call-of-robloxia-5-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/get-free-spins-in-coin-master_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_off000031a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A4 22244 bytes
SHA-256: 33a930d49c77473ff8baceb98dfa701ce6667aea3a93d8a5c320c4a6a72a3e1d
font_01_sfnt_off000062f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F0 19136 bytes
SHA-256: 4a77feef9f504e6fe668abeb7a3f4f5c705d82fa0bd7413f84feb759c1f0feea

Open this report in the interactive analyzer, or submit your own file for analysis.