Malicious PDF — malware analysis report

Static analysis result for SHA-256 43a178dd50a28363…

MALICIOUS

PDF

33.8 KB Created: 2021-06-27 02:30:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 650aac6a74b123782c0e9ecbd8fb9fc8 SHA-1: a26db2d6ca897656e0114ccae33d6374681c32bb SHA-256: 43a178dd50a28363e282e0606e21252e0f3b22a5f59ceb5aa9170913c79ad8d8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' and game hacks. The primary lure appears to be a scam designed to trick users into visiting potentially harmful websites. The document body and embedded URLs strongly suggest a phishing or scamming attempt.

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/free-robux-2021-francais-game-hack In PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/not-a-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/oprewards-login_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/pokemon-go-free-online_GM1094591345.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-by-oints_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-pokemon-go-accounts_GM1094591345.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/noclip-roblox-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4B 22148 bytes
SHA-256: 483e0cac748884b1dfacf57ba0c69210d25276c9d7cd09cc9932dc374d5fc541
font_01_sfnt_off00005e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E49 19240 bytes
SHA-256: 0f5e42cc2d440cbcb4c1e777c54540ee09a967de14b18e5f1b4fea030cd9e16e

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