Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fb30cd7771617bc…

MALICIOUS

PDF

46.0 KB Created: 2021-06-03 20:44:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2b23f0e9ce99287b47445a814fde8bf2 SHA-1: 13e05792636213030e78f5ce993867acef301a83 SHA-256: 0fb30cd7771617bc7ef22c79870ae2f5a928c5327e0cbb9935c8786ac81ddc27
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document contains lures related to 'Coin Master' game cheats and requests for recovery secrets, indicating a phishing or scam attempt. It embeds multiple URLs that likely lead to malicious downloads or further stages of an attack. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.online/app/406889139/coin-master-free-spins-link-today-new-2021-game-hack PDF link annotation
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-spins-that-really_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
stream_004_off0000550c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x550C 26156 bytes
SHA-256: 4251ce4079f1d83743c4ea55c081401496d21362ba8c7c98696f10004743794e
font_01_sfnt_off00008eea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEA 18976 bytes
SHA-256: 9ab4b87832590d82aec569b9c8693c2016d5d9151569e528de1ed13ad8a1cb2c

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