Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb0b4386b8c207f7…

MALICIOUS

PDF

46.1 KB Created: 2021-05-19 02:50:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 61980f453a9ce7687283764a220ed75e SHA-1: 064338b34bf6fd48fc9b2d285ba019ad3432ebb1 SHA-256: bb0b4386b8c207f7265e769317c61c1f1d04214db284f099434b5a353687a79b
200 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. It impersonates brands like Paypal to trick users into clicking these links, which likely leads to further compromise. The document body and embedded links suggest a credential phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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.xyz/app/431946152/how-to-get-free-robux-without-downloading-anything-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.xyz/app/431946152/how-to-get-free-robux-without-downloading-anything-game-hack In PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • https://www.man2samarinda.com/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.man2samarinda.com/__statics/gudangsoal/files/robux-sites_GM431946152.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.man2samarinda.com/__statics/gudangsoal/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.man2samarinda.com/__statics/gudangsoal/files/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://www.man2samarinda.com/__statics/gudangsoal/files/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://www.man2samarinda.com/__statics/gudangsoal/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.man2samarinda.com/__statics/gudangsoal/files/free-robux-master_GM431946152.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://man2samarinda.com/__statics/gudangsoal/files/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b8e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B8E 24628 bytes
SHA-256: be8b2499f4e21cb4fc44a4cb2c44529c12584a36643923c5ca2d16cf02b7e3a2
font_01_sfnt_off000082f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F9 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA8 19880 bytes
SHA-256: b3cc443709e3d0792834aff36fc45ebf0729ec5a88bbf4f00dbe60b4c0075203