Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f7eb2f4550765c7…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 23:13:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6592e1e1650c4e34f5687c2786255cdb SHA-1: eb14aab182b065ed19be91aa416cca867fa49857 SHA-256: 5f7eb2f4550765c7ece47ac2515dc78bd5d572fee453edcb4bcc89785fcba1cb
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/479516143/minecraft-on-computer-free-game-hack PDF link annotation
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/mcpe-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/roblox-people-girl_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/more-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/roblox-piano-hack_GM431946152.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_off000031f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F2 21884 bytes
SHA-256: 0e910ccc39a32d8d8d29c075d25aacd225758d7cfb90bf0716bcabb4a7973228
font_01_sfnt_off000061c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C1 18576 bytes
SHA-256: 7513e646e321e05ee14e7c487dba2482799d5320eb3bae11c9c2836e863cbe91

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