Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a875595795d3092…

MALICIOUS

PDF

41.8 KB Created: 2021-04-29 19:18:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e06c9fc6e741a64b90ab08b68b8ef672 SHA-1: 898d798809c02ead05cccc79e6d5ab05bc6986d2 SHA-256: 2a875595795d3092ab2f9ae63939e896071b5283048c385c108fd7ef14151aef
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, "CLICK HERE TO ACCESS ROBLOX GENERATOR", designed to trick users into visiting malicious websites. The primary lure is related to "Robux Giver Hack", indicating a scam or phishing attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/robux-giver-hack-game-hack PDF link annotation
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-decals-for-roblox-work-at-a-pizza-place.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/prison-break-roblox-hack-script.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-roblox-coes.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-mod-hack-tool.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-safe-roblox-injector.pdfIn PDF document text
    • http://technibuild-group.com/uploaded_files/userfiles/files/free-to-use-roblox-ads.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-cheat-on-roblox-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/hacking-roblox-with-brutus.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-clown-van-hack.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-do-you-earn-robux-for-free.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000417d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x417D 27812 bytes
SHA-256: 3ac730a1db5159fcb14cb1dff23190fbecd01316ffb0ad4162098d52330ba9ef
font_01_sfnt_off000080fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FD 18484 bytes
SHA-256: 8c5a2ecd2776455f39ba8647ab02a67e7268cdebca28d042723c716a5b3c7585

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