Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad73374e2b415ae…

MALICIOUS

PDF

46.3 KB Created: 2021-05-19 11:27:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 41767b22d6babe60cceeaa758b29c01c SHA-1: b2e0b57b73ed5f62265f6457749b7541a96a46f4 SHA-256: fad73374e2b415aeca3f49a6a26ed9c12ce0ac464ae119f0da95b46ae6283a76
142 Risk Score

Malware Insights

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

This PDF document contains multiple links and lures related to game hacks and free currency, indicating a phishing or scam attempt. The critical heuristic for 'Recovery secret / private key request' suggests the document may attempt to trick users into revealing sensitive credentials. The embedded URLs likely lead to further malicious content or credential harvesting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9278

Heuristics 5

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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 https://netcdn.xyz/app/406889139/coin-master-card-hack-app-game-hack PDF link annotation
    • http://stansabbiatura.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/pubg-uc-ykleme-midasbuy_GM1330123889.pdfIn PDF document text
    • http://stansabbiatura.com/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b70.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B70 25836 bytes
SHA-256: 6fd73c567f0df1dfb0d76c149d37d0e7ff17955b22c808f084d5a6bc042ec258
font_01_sfnt_off000087c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C0 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off000092ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92EA 18068 bytes
SHA-256: 253c022fea36e2edfdded8e932a5d2c5ace7c2c75107348eb73538d72e63084f

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