Malicious PDF — malware analysis report

Static analysis result for SHA-256 023277cf5e966973…

MALICIOUS

PDF

40.5 KB Created: 2021-04-22 16:35:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2908bf285ccf3ff943eac442523fbc0c SHA-1: 94efe12d3fbe37668c52a9d9711cf66bfcdd4588 SHA-256: 023277cf5e9669731d9ef15054c3717dfa2d8b14f59a5c32b29adf0b7db8163b
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 0.9941

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://netsecure.pro/app/431946152/nopde-engine-lua-script-hack-roblox-game-hack PDF link annotation
    • https://www.tqma.com.ec/images/free-robux-form-farms.pdfIn PDF document text
    • https://www.tqma.com.ec/images/robloxnation-com-free-robux.pdfIn PDF document text
    • https://www.tqma.com.ec/images/hack-roblox-sped.pdfIn PDF document text
    • https://www.tqma.com.ec/images/how-to-hack-roblox-admin-commands-script.pdfIn PDF document text
    • https://www.tqma.com.ec/images/free-robux-2021-december.pdfIn PDF document text
    • https://www.tqma.com.ec/images/info-roblox-com-robux-free.pdfIn PDF document text
    • https://www.tqma.com.ec/images/free-robux-no-human-verification-download.pdfIn PDF document text
    • https://www.tqma.com.ec/images/roblox-how-to-open-cheat-engine.pdfIn PDF document text
    • https://www.tqma.com.ec/images/counter-blox-roblox-cheats.pdfIn PDF document text
    • https://www.tqma.com.ec/images/free-robux-promo-codes-june-2021.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_off00004030.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4030 24980 bytes
SHA-256: cd2effaaf28ccd5bac9922bce15dde2b590f7d446c0b82daee4dcaf4899c218a
font_01_sfnt_off000079a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A5 19184 bytes
SHA-256: 9de38c5b78574d7e5243636f50629c8525f3d25ccac02170b7a38449f77d0500

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