Malicious PDF — malware analysis report

Static analysis result for SHA-256 1145f48f1bbaac60…

MALICIOUS

PDF

47.8 KB Created: 2021-05-12 00:47:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: eca632c0130d8208f38301e55538b482 SHA-1: 17d675bee5e7d7ed3a0cb753120ae5378ea4dac7 SHA-256: 1145f48f1bbaac607a2567c6eaeaf108cfdf1a08d5e3c606d776b022e343950a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a URL that, based on its name, likely hosts a malicious "hacked client" for Minecraft. The document body and heuristics indicate a lure to download this potentially harmful software. While no scripts were directly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to a malicious download site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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 https://netcdn.xyz/app/479516143/minecraft-hacked-client-download-game-hack
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-do-you-get-roebucks_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-without-survey_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-website_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-gift-card_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-free-spins-link-hack_GM406889139.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-that-actually-works-2021_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-coin-master-spins-2021_GM406889139.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/get-free-robux-no-verification_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/legit-free-spins-coin-master_GM406889139.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-hack-for-android_GM406889139.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/roblox-rape-hack_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-card-collection-link_GM406889139.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-to-get-free-robux-on-mobile_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-hacks-for-free-spins_GM406889139.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/youtube-how-to-get-free-robux_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdf
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-no-verify-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b1c.bin
7aa107303434eb67203861cac2d0616943bc1f09d3918fad08c2a006d34b3d68		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B1C 29140 bytes
font_01_sfnt_off00008d95.bin
dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D95 3056 bytes
font_02_sfnt_off00009807.bin
e3089071acaa3d725dff62b6cfe00465db2477317d389ff23f6444401690c9a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9807 18460 bytes

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