Malicious PDF — malware analysis report

Static analysis result for SHA-256 4006d88ffc1dd992…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 19:52:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: f75668a72069ac4f2232846bbe30f6c3 SHA-1: b09286fb88401777ae4e6549aaba9c357f11568f SHA-256: 4006d88ffc1dd9925eaf97fbd0f695967a34b43a116461ec6fd954343884732a
122 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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/free-robux-no-password-needed-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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-robux-no-password-needed-game-hack PDF link annotation
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/open-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/roblox-teleport-cheat_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/roblox-how-to-make-your-character-look-cool-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/earn-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-robux-youtubecom_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/roblox-hack-v2-11_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/bank-tycoon-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man2-cms.sch.id/__statics/gudangsoal/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3063 22124 bytes
SHA-256: edfe84ecd70b0f770f9271c1d70c306550066587a9dd21429d3f0dadd4bf47c9
font_01_sfnt_off0000619e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619E 19208 bytes
SHA-256: 6b3d0efb3debf488fe81ea92b60c01ccbae5249fd0a29fdced25ee5be01c6081

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