Malicious PDF — malware analysis report

Static analysis result for SHA-256 01bd3966dc455fbe…

MALICIOUS

PDF

44.7 KB Created: 2021-05-16 16:17:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1e96fbfcc18284281de3a4e34a183e08 SHA-1: 628a59e75b729cf3f4d69fea2137f85124d4b774 SHA-256: 01bd3966dc455fbefdf50a980ac7e2ebcc3135520ce1a55c96eb5f9de0af93f7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and lures users with promises of game hacks and free spins, directing them to external URLs. The ML classifier strongly indicates maliciousness, and the presence of external URIs suggests a redirection to potentially malicious sites or phishing pages. No scripts were extracted, but the document structure and embedded URLs are indicative of a social engineering attack.

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/406889139/haktuts-free-spins-game-hack PDF link annotation
    • http://montchanintt.fr/images/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://montchanintt.fr/images/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • http://montchanintt.fr/images/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/instant-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/get-free-spins-on-coin-master-2021_GM406889139.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_off000049ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49AB 33180 bytes
SHA-256: c51b9b52d795718097fa5fc95b73b2c60b88416f8be216a100fe3ee39109d36c
font_01_sfnt_off00008d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D5E 18056 bytes
SHA-256: 27309e03ff14d41137bcd53e2e575456e4188dd6a4cb04690caeb102eb8c9b2e

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