Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee0530384cf68ff…

MALICIOUS

PDF

33.6 KB Created: 2021-06-27 02:44:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 70d387eda3c33d95eb9045fdcaa75ede SHA-1: 513da3c77c389d2a4e7624bda4cbbb54a6e92dc0 SHA-256: bee0530384cf68ffe48b2bc273882a3f77d23ad0e911de0dabcfd6b11935702d
200 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, specifically designed to lure users into downloading game hacks or cheats. One of the primary links impersonates Facebook, indicating a credential phishing attempt. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed for user deception and potential credential theft.

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.co/app/431946152/roblox-cb-ro-hack-download-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.co/app/431946152/roblox-cb-ro-hack-download-game-hack In PDF document text
    • https://repository.stikesindramayu.ac.id/repository/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/cheat-roblox-blox-piece_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-online-roblox-games-no-download_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-cheat_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-use-cheat-engine-to-get-robux_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-javascript-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-animation-roblox-studio_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/descargar-roblox-hack-robux-mediafire_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/hack-client-for-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/raindrop-hack-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-get-robux-on-roblox-for-free-easy_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-csgo-hacks_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/hacks-roblox-csgo_GM431946152.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_off00002f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F01 21292 bytes
SHA-256: 6791b2edc2e05dd60373ededef4759a742a2d83ee0b107eb10182e92c84e0d2b
font_01_sfnt_off00005d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7E 19160 bytes
SHA-256: 3bd035a73e561222d1c22f59e8ef2aa8026352ea72ad7fa398a210fd66332e06

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