Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e18e057e25dd2f7…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 10:42:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 146c806c7561567a25ee28275dcfd30d SHA-1: e19dec836e0996f19e248cc13ff6c7ab32a1276a SHA-256: 1e18e057e25dd2f739cc6180a20aad02b0eebbfe2c875623525960c156d3b04c
82 Risk Score

Malware Insights

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

This PDF document contains multiple embedded URLs that are disguised as game hacks or generators for popular games like Roblox and Coin Master. The primary URL, http://netcdn.tw/app/431946152/hacks-to-get-free-robux-game-hack, is flagged as a lure for game hacks. The presence of a visual download button further supports the malicious intent of tricking users into downloading potentially harmful content or visiting malicious sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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/hacks-to-get-free-robux-game-hack PDF link annotation
    • http://library.persadabunda.ac.id/repository/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/claim-roblox_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/fake-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/arts-78-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-hack-your-roblox-account-back_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-change-roblox-name-free-2021_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3219 22308 bytes
SHA-256: e86f57fb0f0505a7731512e03a1e23f744892f16400be6f9796a993c3ef69822
font_01_sfnt_off000063aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AA 18992 bytes
SHA-256: a46b776bb67c7b468de6bb210db8cc3c07a9aad6d9a2155761eaac94cf23c7ac

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