Malicious PDF — malware analysis report

Static analysis result for SHA-256 abd25ff407da25c9…

MALICIOUS

PDF

35.9 KB Created: 2021-07-02 01:11:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 01f77b72711a7bc06cdd6f0252f08b5c SHA-1: 9cadb90ede481038dccbcba817d9713690ba3e4d SHA-256: abd25ff407da25c99eb86042ab5ed7c69139205ac0363a8e3f9042dff6f9b6a6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a PDF link farm, likely intended to direct users to malicious websites or download further malware. The ML classifier strongly indicated maliciousness, and the presence of external URIs and a call-to-action phrase reinforces this assessment. The document's content, focused on game cheats and hacks, serves as a lure for users to click these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/cheat-teleportation-jailbreak-roblox-game-hack
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coinmasterdailyfreespins-com_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-ultra-attack-hack_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-202120212021202120212021202120212021202120212021-robux_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-gift-card-codes-unused-2021_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-dantdm-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-without-human-verification-real_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-robux-hack-no-survey-no-offers_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-clothes-for-your-avatar_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-marketplace-free_GM479516143.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/get-free-money-in-jailbreak-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-make-a-free-shirt-in-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-com_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-chromebook_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-check-if-someone-in-roblox-is-hacking_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-no-survey-or-verification_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/get-free-roblox_GM431946152.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdf
    • https://pendapatan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/can-you-get-free-tiktok-fans_GM835599320.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000345e.bin
778fb28014be1f512a34e87c1c38f0580a1aa14fc084d95908740900fcfb7949		 pdf-font-stream PDF embedded font (sfnt) at offset 0x345E 22560 bytes
font_01_sfnt_off0000666f.bin
b7e941f8d25e44d748fc566dffca2ac93f7ab64287030212840624637d956b26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x666F 19388 bytes

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