Malicious PDF — malware analysis report

Static analysis result for SHA-256 7439711aff5cc926…

MALICIOUS

PDF

38.1 KB Created: 2021-06-24 16:11:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7138d13c6811d75a5ccd9056d04d25c8 SHA-1: d8366f1a2325228727edc2d29b12112beab22367 SHA-256: 7439711aff5cc92616c2c1838b8871adf00afac42a97d2420ee022ed7ab51829
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 0.9886

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.co/app/406889139/coin-master-hack-lost-world-2021-game-hack PDF link annotation
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/roblox-robux-generator-v131-wwwwehackcom_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://elearning.mtsmanbaulhuda.sch.id/__statics/gudangsoal/files/coin-master-computer-hack_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3392 22580 bytes
SHA-256: 55c1945fe92d27ef039f2e0dbf51669e0b9484da93c4ad1b5d7dc64ecfeba369
font_01_sfnt_off00006622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6622 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00007007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7007 18852 bytes
SHA-256: 2669d3b3f6f7768ec93435b0c17e3258224bc91c1821838396bd24ebd9fbfedb

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