Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ccf886ec79f9599…

MALICIOUS

PDF

35.6 KB Created: 2021-06-29 03:03:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0ccccfd9f948c83018434f398efab0f1 SHA-1: 86882cf436e314e4ccb519940336b03d3e2fc69e SHA-256: 1ccf886ec79f95998715d58c267071ff8827f4b6f74a5f7f33cb1ba92291581b
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.co/app/431946152/roblox-online-hack-2021-game-hack PDF link annotation
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/www-roblox-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-game-free-download-for-pc_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/25-roblox-gift-card-free-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-generator-hack_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_off000034c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34C8 22124 bytes
SHA-256: c9e883d057018a002dc72a62371b12554e55667ba58526acc2fe0749109f89fc
font_01_sfnt_off000065d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D6 19180 bytes
SHA-256: b10b31d8f4c3cdd7f36a077e25e9d643f674684302ac54d575ad5ad03573847a

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