Malicious PDF — malware analysis report

Static analysis result for SHA-256 eba67c52e735c439…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 22:45:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 787592e43b731cdc87900a8ba94b9b2d SHA-1: 8721c75f68f54c702e86c4140daf32101e786305 SHA-256: eba67c52e735c43909ae6e2f6d60e58c44b359dbe40717628c054222ea8ca529
200 Risk Score

Malware Insights

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

The PDF document contains multiple links designed to lure users into clicking on what appears to be a generator or hack for popular games, impersonating brands like Netflix. These links redirect to malicious infrastructure, indicating a credential phishing or malware distribution attempt. Although no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest an attempt to exploit users through social engineering, likely leading to credential theft or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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: https://netcdn.online/app/431946152/free-robux-videos-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 https://netcdn.online/app/431946152/free-robux-videos-game-hack In PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/robux-survey_GM431946152.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/robux-generator_GM431946152.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/2021-roblox_GM431946152.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • https://library.sdksantamariabwi.sch.id/repository/coin-master-free-spin-and-coins-links-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_004_off00005548.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5548 24924 bytes
SHA-256: 9f0ec7597cba2cd80409a070fc1b2aa507b8f1a1e07a455d689dab1ed2aaf70a
font_01_sfnt_off00008e63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E63 18444 bytes
SHA-256: 1ec21ed17295e3d49cd7a507c4ef3ee968e538ae560c82d8bcc555326bed268a

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