Malicious PDF — malware analysis report

Static analysis result for SHA-256 e481f947dc7fc843…

MALICIOUS

PDF

48.3 KB Created: 2021-05-13 06:03:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 205b2b94ce960484d004ad0a9513e322 SHA-1: 6edcfe76bcc77f17fd3c286788826f527a430926 SHA-256: e481f947dc7fc843225616c40429bc99fc20e905ed645600255e5b38a87661ca
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 0.9013

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/roblox-robux-hack-game-hack PDF link annotation
    • http://tileworld.com.au/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/free-coins_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • https://www.bandicam.comIn 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_off00004976.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4976 30328 bytes
SHA-256: 2b18ed16f094a6acca956128845001bfa6c1f907e9d25d475ea58a5d2721ff09
font_01_sfnt_off00008d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9F 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009a47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A47 18320 bytes
SHA-256: fa424f86a9ddd472d540fc30f07119be4b576a9306b5f7bb82c207f2bb92a2b4

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