Malicious PDF — malware analysis report

Static analysis result for SHA-256 d60278e186ac36b2…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 22:55:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 220a364a0c7b625b6d60e1f5e1c57c31 SHA-1: d6fb3d96a570cd23883ead88d3087035f0b8a834 SHA-256: d60278e186ac36b24f35a3d476796c2c97ee99c37514fe2833a67dfbdf826e17
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple URLs and a call-to-action phrase, indicating an attempt to lure the user into downloading a file. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a password archive lure heuristic further support a malicious intent. The primary lure appears to be related to free in-game currency or hacks for popular games like Roblox.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/follow-button-gives-free-robux-game-hack
    • http://www.dciprotection.ca/images/nintendo-switch-roblox-free_GM431946152.pdf
    • http://www.dciprotection.ca/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://www.dciprotection.ca/images/coin-master-free-blogspot_GM406889139.pdf
    • http://www.dciprotection.ca/images/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdf
    • http://www.dciprotection.ca/images/free-promo-codes-for-robux_GM431946152.pdf
    • http://www.dciprotection.ca/images/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://www.dciprotection.ca/images/coin-master-hack-app-for-iphone_GM406889139.pdf
    • http://www.dciprotection.ca/images/how-to-hack-people-on-roblox_GM431946152.pdf
    • http://www.dciprotection.ca/images/can-you-play-minecraft-for-free_GM479516143.pdf
    • http://www.dciprotection.ca/images/free-roblox-accounts-2021-with-robux_GM431946152.pdf
    • http://www.dciprotection.ca/images/download-coin-master-free-spins-link-2021-today_GM406889139.pdf
    • http://www.dciprotection.ca/images/coin-master-fun-free-spins_GM406889139.pdf
    • http://www.dciprotection.ca/images/free-non-model-roblox_GM431946152.pdf
    • http://www.dciprotection.ca/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdf
    • http://www.dciprotection.ca/images/roblox-walk-through-walls-hack-download_GM431946152.pdf
    • http://www.dciprotection.ca/images/synapse-download-roblox-exploit-free_GM431946152.pdf
    • http://www.dciprotection.ca/images/free-robux-no-human-verification-on-ipad_GM431946152.pdf
    • http://www.dciprotection.ca/images/roblox-rape-hack_GM431946152.pdf
    • http://www.dciprotection.ca/images/how-do-you-get-free-robux-in-roblox-2021_GM431946152.pdf
    • http://www.dciprotection.ca/images/free-minecraft-printables-food-labels_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003364.bin
2b5e916eba49ea423cc9d43682c84958aaf9007cbf82c6c2c7c00ab45348f218
pdf-font-stream PDF embedded font (sfnt) at offset 0x3364 21308 bytes
font_01_sfnt_off000061bb.bin
d0900c977bab3aa7994cbb56e8962be27df3bb93751ccf184f5d78f95bbdfa9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x61BB 19292 bytes