Malicious PDF — malware analysis report

Static analysis result for SHA-256 a34964434512ad04…

MALICIOUS

PDF

49.9 KB Created: 2021-06-03 22:04:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9a068b9f08904f12c81fd38491106c75 SHA-1: eceb684d3b3f3512922b6ecc41441ef398ffb37d SHA-256: a34964434512ad0445299dd595c31b31558bea135087589d9637abb07f7b6a56
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.online/app/431946152/inappropriate-roblox-games-2021-game-hack PDF link annotation
    • http://www.js100.com/uploads/ckeditor/files/free-appsfor-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005298.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5298 27712 bytes
SHA-256: ae7daf3678a6ad6516120a0369843e3acc75b618fb72c1f9216e8f90667f8f07
font_01_sfnt_off000090cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90CB 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDD 19076 bytes
SHA-256: 09b29a203fffa6216a9fcdc982919b92406ba92c3e00e8b004e039d6fe119bc2

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