Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c5023fdffb3c2c0…

MALICIOUS

PDF

43.0 KB Created: 2021-05-13 07:31:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 40a494c002e15ceddccee00b963a585b SHA-1: 2e57b0f18690c775c7d4edc38804e20018451d29 SHA-256: 1c5023fdffb3c2c0bfac4ae1d9617639705e6aa17beefd5a5182db277a17c69f
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a prominent external URI pointing to a domain associated with game hacks and cheats. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests a common tactic of using password-protected archives to bypass security filters, implying the linked content is likely malicious. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-hack-game-game-hack
    • http://e-lib.smaxaverius5.sch.id/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-that-actually-works_GM431946152.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/easiest-coin-master-hack_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spin-link-app_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/roblox-account-hacker-tool_GM431946152.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-deals_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-blogspot-links_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-live_GM431946152.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-game_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/free-minecraft-education-edition_GM479516143.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/free-links-for-coin-master_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/robuxy-com-generator_GM431946152.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/minecraft-logo-maker-free_GM479516143.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/claim-gg-free-robux_GM431946152.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/mobihack-roblox-hack_GM431946152.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/hack-version-of-coin-master_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/blogspot-coin-master_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/hack-the-coin-master_GM406889139.pdf
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spins-and-coins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047c6.bin
6c65af565cee80e73c33cb2ba97a73d96fa436e84d7c493cdbfca93e483f7b7d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C6 26856 bytes
font_01_sfnt_off00008521.bin
ebafd2a9612b8145e5e0fd0fae0a522d36691e15007df27d7d415ea6fce26a90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8521 18440 bytes

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