Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97eb2ed37e52b8b…

MALICIOUS

PDF

33.3 KB Created: 2021-07-07 09:23:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f08ca8684a76cd3f2c5fc4dbbeecc710 SHA-1: 6bf516b8927b2b2c0ec2690de224d9e56e38d310 SHA-256: e97eb2ed37e52b8be440b986cb1f7a3cc8c935aae72eaab727c9affd56bfb93d
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains multiple links to redirector infrastructure, specifically http://netcdn.tw/app/431946152/www-robux-com-game-hack, which is associated with game hack and free generator lures. The document impersonates Microsoft, indicating a credential phishing attempt. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest it's designed to exploit user interest in free game items or hacks, leading them to malicious sites that likely host further payloads or phishing forms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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: http://netcdn.tw/app/431946152/www-robux-com-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
  • 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 http://netcdn.tw/app/431946152/www-robux-com-game-hack In PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/cheat-engine-lua-script-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-hack-v6-5-download_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/master-free-spin-and-coin-links-html-m-1_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/hack-para-booga-booga-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/wurst-115_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/play-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/claim-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-village-cost_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
font_00_sfnt_off00002b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8A 22148 bytes
SHA-256: d6b1bd755cf547ca55e911996fb84a3a964e253c1bf434afcf6cad328762a236
font_01_sfnt_off00005cab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAB 19176 bytes
SHA-256: 2a716611a8ea3608fbed677588855607175499b5469e2579a4de093f44ff8792

Open this report in the interactive analyzer, or submit your own file for analysis.