Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6104a754c0c8193…

MALICIOUS

PDF

46.0 KB Created: 2021-06-09 03:11:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9ddf1bbd05adc1ab242957a250790ee1 SHA-1: bb896fe5e3153b783d33b83d5d3198a5555d4543 SHA-256: e6104a754c0c8193649521bcff84f8636d54a72a907baf7f661292daf4ca2827
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a document body that promotes obtaining free in-game currency and cheats for popular games like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract users with deceptive content. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were directly extracted, the embedded links likely lead to malicious websites or downloaders.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://netcdn.tw/app/431946152/how-to-get-robux-on-roblox-for-free-on-phone-game-hack PDF link annotation
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spin-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/freerubux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4jembrana.sch.id/__statics/gudangsoal/files/is-there-a-way-to-get-free-robux_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_off00005586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5586 26288 bytes
SHA-256: 9a92bae56458e6acbb03b956ae58cd863da6751788a355a1eea3286b99bf1d59
font_01_sfnt_off00009057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9057 18676 bytes
SHA-256: 1f5d2787738bd37777441967b2cdd66bc9ff200d496091335dc10571843c40e5

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