Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee295a6f8b270a41…

MALICIOUS

PDF

50.5 KB Created: 2021-05-19 13:01:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 69becc473c6e3abb69fb5b743e5dda73 SHA-1: 77246d32cdcc5b24c993a8865f49383dc468a019 SHA-256: ee295a6f8b270a415aedb44f2870a814f7599a9eca71985012180b0c499f0c33
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1534 Internal Spearphishing

This PDF document employs a lure related to game hacks and free currency to trick users into clicking a malicious link. The link redirects to a credential phishing page impersonating Microsoft, aiming to steal user credentials. The ML classifier strongly indicated maliciousness, and the presence of multiple lures and external URLs supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/lazyblocks-com-robux-game-hack.
  • 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/lazyblocks-com-robux-game-hack PDF link annotation
    • http://www.exikom.com.ua/images/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://www.exikom.com.ua/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://www.exikom.com.ua/images/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.exikom.com.ua/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/free-2021-robux_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b54.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B54 26380 bytes
SHA-256: 31d26ea38c3808d280ea0163a164c94f793a9b7e23348572a10eb3885b8acd2f
font_01_sfnt_off00008922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8922 7420 bytes
SHA-256: 0b188308ab0e7ffce9913d63d697a586f2937cafc51a771db38e3a566cd37e24
font_02_sfnt_off0000a191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA191 18844 bytes
SHA-256: 639e5ac620987a890dc2290d0ce77fbe17994151dd0929aad8f87d767cce42ff

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