Malicious PDF — malware analysis report

Static analysis result for SHA-256 24bdaf9dc0c7a8e1…

MALICIOUS

PDF

34.7 KB Created: 2021-07-09 15:07:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7d300226382fec1e9b59dbc35d98653d SHA-1: 2247af545888330ac43d0655273ef55819a0b974 SHA-256: 24bdaf9dc0c7a8e10cb42c65a627916482534385801974a0120fba59ef031b2c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) 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 0.9980

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.
  • 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 http://netcdn.tw/app/431946152/robux-gratis-game-hack PDF link annotation
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/best-roblox-fps-unlocker-free_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/roblox-cool-free-tshirts_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-robux-generator-net_GM431946152.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-800-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/free-level-7-executor-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/infinte-fly-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man1majalengka.sch.id/__statics/gudangsoal/files/roblox-r45-hack_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBE 23556 bytes
SHA-256: 3c89e3cea2373adee07be6ae8cff53baaead4a5991e6614d10a77bc682bb9d15
font_01_sfnt_off00006313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6313 18776 bytes
SHA-256: 64e0eacfd3f3664a1005437cf3df50ecb5e8219eed054557667feeb69243a319

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