Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda89ee0989e3e52…

MALICIOUS

PDF

46.5 KB Created: 2021-05-21 02:04:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2c8c7f5a9e1402dd6fa60e5709a1c148 SHA-1: 9f4026ee228d3df71067c6881bd3666fb2ccd8d9 SHA-256: eda89ee0989e3e52c1761b6329e5a234e24d08f0cb36bf29d937cb6156d31e2d
82 Risk Score

Malware Insights

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

The PDF document contains a high-severity heuristic indicating it links to a "free generator / game hack" lure. This lure directs users to the URL https://netcdn.xyz/app/479516143/free-minecraft-bedrock-game-hack, which is likely a downloader for a second-stage payload. The presence of multiple other suspicious URLs further supports a malicious intent to trick users into downloading or executing further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7710

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/479516143/free-minecraft-bedrock-game-hack PDF link annotation
    • https://www.ma-plast.hr/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003569.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3569 24500 bytes
SHA-256: 52822185944fb78c6cd8dee5085cf6f6832ad1062a26a61aeac223e0e6605948
font_01_sfnt_off00006ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA5 7936 bytes
SHA-256: 218d53b68bdddb064f6fba4be822d5b3725ed1cef1a3b42796a8dd99c4a62f4e
font_02_sfnt_off000085ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CE 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off0000945a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945A 18268 bytes
SHA-256: d34bffa2112548f8729f10b9022dbaea9618b038b2dadf4195d892bf0ac95b27

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