Malicious PDF — malware analysis report

Static analysis result for SHA-256 53dc236ace062332…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 02:35:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 976238f65d21a04a934b7756c209d985 SHA-1: d03ff1e0c4bee56e820c7faaa945c35b8acad04a SHA-256: 53dc236ace06233272c9c7f060d305a687923d09685b4e6cda86102c440f8922
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many of which point to files with names suggesting game hacks or cheats, indicating a potential link farm or scam. The presence of a "download" button lure further supports a malicious intent to direct users to external resources. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to trick users into downloading further content, likely for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/free-coin-coin-master-game-hack
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/robuxglobalcom_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-spins-coin-master-app_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-version-2021-download_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/minecraft-free-download-android-apk-014-0_GM479516143.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-ios-gods-hack_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/minecraft-116-free-download_GM479516143.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-roblox-gift-card_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-free-foxy-food_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/websites-to-get-free-robux_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-spin-and-win-coin-master_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-online_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/easy-coin-master-hack-without-verification_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-el-tiger-card-free_GM406889139.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/roblox-hack-apk_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-android-1_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d81.bin
d15900c8534ea71cec09229cc6264f44ea440ca40d95c1733e571cb6aa301b8b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D81 24456 bytes
font_01_sfnt_off000085ba.bin
effefb876c7a76aa063811ff0160e46fb8a90dd5507c6c48ef6fa39823ab5c8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85BA 17712 bytes

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