Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c0e8bf20726e5a8…

MALICIOUS

PDF

49.7 KB Created: 2021-05-11 22:01:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 60fd8f4ae65b38e3e87d2a85e489bbcb SHA-1: fa90a8012a860a2f3284ffd141dc8159e73a1980 SHA-256: 1c0e8bf20726e5a836280e2d7b631a8902232030a54197310170cac1ebc90890
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' and 'game hacks' for popular games. The document body and embedded links strongly suggest a lure to a scam or potentially a phishing site. While no scripts were directly extracted, the PDF structure and heuristic firings indicate malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

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-free-play-game-hack In PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/daily-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/robux-win_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/robux-adder_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/roblox-its-free_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-robux-on-ipad_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_off00004b68.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B68 24892 bytes
SHA-256: b13fb3473a80df037011e9ec75b655bc95ebf3709240e833f9f3572f4a340b87
font_01_sfnt_off00008488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8488 8132 bytes
SHA-256: e6d68e720ea5acf9dccbf7ffde18db6f65c62a99ab7725aa43e30329033a7787
font_02_sfnt_off00009f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F75 18512 bytes
SHA-256: eed476aa069bc09357c43ec056cace655c39995f669be6a5bb4491b7d3b62334