Malicious PDF — malware analysis report

Static analysis result for SHA-256 0114ab5e7d26aab9…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 13:21:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 087315f1ad84c85b603dc82bcdc8a13f SHA-1: e3ea095cdc7be5fa0609227932af1ffc41a2ea81 SHA-256: 0114ab5e7d26aab95464ceb0a9ec6300fe36b6a3e2a17b7528dd9bb7ca700a3e
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to a known malicious redirector infrastructure, disguised as generators or hacks for popular games like Roblox. The document body explicitly mentions 'how-to-get-free-robux-without-generator-game-hack', reinforcing the lure. The primary attack pattern involves tricking the user into clicking these links, which likely leads to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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/how-to-get-free-robux-without-generator-game-hack In PDF document text
    • http://cintabaca.org/katalog/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/cheat-for-roblox-tickets_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-the-plaza-plane-free_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-get-coolkids-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-robux-hack-ios_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-tiktok-25-likes_GM835599320.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/minecraft-115-2-hacks_GM479516143.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_off00003092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3092 22076 bytes
SHA-256: b5ca14ed51b61baeb6441375f82bf36035b251456b5bc1d9c0fa6eebb307b7a8
font_01_sfnt_off0000615f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615F 19468 bytes
SHA-256: b30ec9011a0960588ef8c0daa832d51a1de61046087ce1c4f07e909b9e1d8d17

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