Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f6620026272f41…

MALICIOUS

PDF

47.1 KB Created: 2021-06-04 08:42:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: cb7681a6c36843f981d14c50cf40ac66 SHA-1: d89d1395a185560f9dd8fffc6bc2b37dd66bb949 SHA-256: e7f6620026272f41687e3849ae4b11502a01b13e73695468186c4129efdea67c
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a "free generator / game hack" lure, a common social engineering tactic. The document body, though heavily obfuscated, contains a URL that aligns with this lure. The presence of embedded URLs and the ML classifier's high confidence score suggest malicious intent, likely to redirect users to a site that hosts malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 6

  • 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/835599320/will-tiktok-free-view-bot-game-hack PDF link annotation
    • http://e-library.dharmawangsa.ac.id/repository/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/roblox-speed-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/poke-coins-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://e-library.dharmawangsa.ac.id/repository/coin-master-codes_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_off00004e84.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E84 24664 bytes
SHA-256: 501008ac5943197a68d59b0d88d9d8d783eb98d41fff59a05cb826433c02a835
font_01_sfnt_off0000877a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x877A 4148 bytes
SHA-256: 8e7da660036966bdb1ed52214b958ee3b78328f4809cb9807c9fdf5e055d3452
font_02_sfnt_off00009551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9551 18244 bytes
SHA-256: 66eba3628fb9958d504d172934cd7d4392a5f8bf3da127311e078a56b4435d29

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