Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bc4acbcf183d343…

MALICIOUS

PDF

45.3 KB Created: 2021-05-19 19:08:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f9f93f71f41a317659c359cefd4bbb70 SHA-1: e02d2ea4445ba04bc857000a4a818c0ce46dd695 SHA-256: 0bc4acbcf183d34391398f445752a91e93884252e551c82bb22c5c8a30caa324
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and other PDF files hosted on suspicious domains, all related to game hacks and cheats. The document body, though partially corrupted, contains text and URLs that reinforce the lure of obtaining free in-game currency or hacks for games like Roblox and Coin Master. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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 https://netcdn.xyz/app/431946152/roblox-admin-hack-game-hack In PDF document text
    • http://elektrofahrspass.de/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/earnrobux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46B1 25120 bytes
SHA-256: cf0195ddc562385a8219d783df11a3c21cbe99dad150ebf4a55e9cd9873ad3fe
font_01_sfnt_off000080b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B1 3464 bytes
SHA-256: 8e24205afdd13dcdea98f8150ef77dee4030e0e50a7c748783d1b4598e034a20
font_02_sfnt_off00008ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE7 18736 bytes
SHA-256: 3c6e42d8b899458ba5de36bc8f8a4655a2118fb63f8b9623f3d1687e7f66cf01

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