Malicious PDF — malware analysis report

Static analysis result for SHA-256 0119cfc3c202efdb…

MALICIOUS

PDF

52.2 KB Created: 2021-05-13 11:33:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-28
MD5: 96345ad053f2d7741a9d990df94cdb4a SHA-1: da7f3bffd779d528ce5915fd83f3471ad62fcdf3 SHA-256: 0119cfc3c202efdb409f56098abf5ef155682057da1905d64db2a80b9cc6b9e6
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9348

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/get-free-robux-game-hack In PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/mcpe-download_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_003_off000051b3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000051b3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51B3 26360 bytes
SHA-256: 67da187aed47bdc168cfb18cceb65605b50f8723f02827e68f097291687d632e
font_01_sfnt_off00008f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F7B 8252 bytes
SHA-256: 7ebedd6b182173c8e55836cb0d114b2c4a0ac85c96a51b9f0706c935f8415fea
font_02_sfnt_off0000aa8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA8F 18120 bytes
SHA-256: 79ac164380d838bf2943c127f808202d45f8751c05dbd036140e6fb9b1b49848