Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ad437213eafb1f…

MALICIOUS

PDF

44.0 KB Created: 2021-05-19 22:03:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a005adca1e885e9537db56921227b5e0 SHA-1: 6cca672b1409e1401e9907038c8343b32f19009e SHA-256: 07ad437213eafb1f548dc0e17bdb6a3d9a5f859045811970458549d25b0b6ac2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a URL advertising a game hack, which is a common lure for malware distribution. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious redirect URL and the 'game hack' lure strongly suggest an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/1330123889/pubg-770-uc-hack-game-hack PDF link annotation
    • http://repository.poliven.ac.id/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/install-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-roblox-animations_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004565.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4565 25880 bytes
SHA-256: 8806111edf6c6c940a5897f007893bac7a757d1df9894c31874210dbd7013a01
font_01_sfnt_off00007ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE7 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8896 18524 bytes
SHA-256: c40407417514b25958010ef760b887a9ee3ce6212655ded6dd92c5e6a209b647

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