Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb610a1afe0153e0…

MALICIOUS

PDF

44.3 KB Created: 2021-05-12 02:34:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2e80172ee13c488a707c8be9bc963534 SHA-1: d0b6eca03276ef2f14a8dff8aaa40570d2ff7a70 SHA-256: fb610a1afe0153e0d686a6891f8c28f6dac9caa9c51e690953d6349935bcf3ea
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links disguised as game hacks and generators, specifically targeting popular games like Robux and Coin Master. The ML classifier strongly indicates maliciousness, and the presence of external URIs suggests a redirection to potentially malicious websites or download servers. No scripts were extracted, but the document's structure and embedded links point towards a social engineering lure for malware distribution.

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-easy-2021-game-hack PDF link annotation
    • http://www.pspmrsmbpj.com/opac/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/minecraft-tools_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/is-there-any-way-to-get-free-robux_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
stream_003_off000047cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CF 28636 bytes
SHA-256: 8d0ff9f0a2ea7283c1d6aca3f0391a6eeaf3e00cb286f4b49e8f7d0f541da626
font_01_sfnt_off0000880c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880C 19092 bytes
SHA-256: b4f5bd8c8985fe06cb8cafea7c6a35db41ab3230d9b691422e9309a9df735677

Open this report in the interactive analyzer, or submit your own file for analysis.