Malicious PDF — malware analysis report

Static analysis result for SHA-256 4823dcb693f2c43a…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 17:11:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 59cec57cfc4e6a3a6b7fddd83b29292d SHA-1: 1c3076c39a50cbe9b3f2b4e21bdb4207574d1a4f SHA-256: 4823dcb693f2c43ab9c22142c5b205ab7e0845dd02da7cf3090d4a1b8990facd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document contains multiple embedded URLs that redirect to malicious infrastructure, masquerading as free game hacks or generators. The document body and heuristics indicate a lure to trick users into clicking these links, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the presence of malicious redirector links and the lure content strongly suggest a malicious intent.

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-roblox-school-game-hack In PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/pokemon-go-free-808_GM1094591345.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-android-zephplayz_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-hack-script-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-hack-arsenal-roblox-mac_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/help-i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/easy-hacks-of-money-for-rocitizens-roblox_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_off00002ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA8 22472 bytes
SHA-256: 6d979f6c84e345713b5274d0679fd095b7c9824e845375ce750849ac14cb279c
font_01_sfnt_off000060ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60ED 18816 bytes
SHA-256: 14b9b3b49e18c1465e38051920220a5e432ae669abcf1c4e2bb34542541cc927

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