Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e88300433c22d7…

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 14:22:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e3151d5b85a20387b2ed8a695ad4ac84 SHA-1: e9090f82d640df2f21d5243f0694be531c20b056 SHA-256: d4e88300433c22d7675812c31434af774c1b1ee1bd4f8ddddfcec0f58d11f1cf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 4

  • 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.
  • 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.tw/app/431946152/freerubux-game-hack PDF link annotation
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-vip-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-roblox-gear_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/boku-no-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-coin-master-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-using-inspect-element_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1ae.sch.id/__statics/gudangsoal/files/2021-free-spins-coin-master-link_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
font_00_sfnt_off0000314d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314D 22552 bytes
SHA-256: 1e1a92558555bd88901c790a293261f34fa44beded6d364e221e82bb6c55f7d3
font_01_sfnt_off0000635c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 18572 bytes
SHA-256: a4910544a3301e21d5425f47d387c0dcd2b1454e32e0c532c02705c370365377

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