Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a7280465e07f23d…

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 05:44:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9f66809bb5ae5aa399773dbc1f70cdda SHA-1: fcb070ce7ec6e7180e1452cf980f1ef6f07fcdcb SHA-256: 5a7280465e07f23d3652e0bb45cd2eb9c9665fe6abbb0dd843e0fd204f75015e
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses a clipboard-command (paste-and-run) 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 0.9769

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/479516143/minecraft-free-download-no-virus-game-hack PDF link annotation
    • http://lib.akpnbahtera.ac.id/repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-links-for-coin-master-2021_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
font_00_sfnt_off00005074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5074 29556 bytes
SHA-256: 68fad8f4c6e7cfc3158be54982b7359183ef7df5f3cb09622bad0abb079f8359
font_01_sfnt_off00008d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D76 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off00009728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9728 18564 bytes
SHA-256: 73fda2f7f87cf364c845d3fc1df52f7bb102f180f2e093609ba7690804eae928

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