Malicious PDF — malware analysis report

Static analysis result for SHA-256 d092859ed070e772…

MALICIOUS

PDF

46.7 KB Created: 2021-05-14 01:00:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: df40b35572e04ba5e5f3227ecfe259af SHA-1: 063ba57fba0b47b6de98474419a5d2d3e6338628 SHA-256: d092859ed070e772f68f898fdf14d83e552bb452f67b1eb0b9de04f8f783c11b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are SEO-optimized and point to potentially malicious content. The document body, though partially corrupted, contains a URL that appears to be a lure for game-related cheats or downloads. The presence of a 'download button' heuristic further suggests a deceptive user interaction is intended. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/coin-master-free-spins-link-download-game-hack
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/how-to-get-20210-robux-for-free_GM431946152.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-only_GM406889139.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-coin-master-gold-cards_GM406889139.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-free-spins--spins_GM406889139.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/minecraft-java-free-download_GM479516143.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-spins_GM406889139.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-link_GM431946152.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master-app_GM406889139.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-no-downloading-apps_GM431946152.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-pc_GM406889139.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-minecraft-com_GM479516143.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/hack-the-game-coin-master_GM406889139.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/my-minecraft-account-was-hacked_GM479516143.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/arsenal-hacks-roblox_GM431946152.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-modded-minecraft-server_GM479516143.pdf
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-2021-free-spins-link-blogspot_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d71.bin
93bd9fc6788d9d978f3d656a4879a8a60067aa130c5cb808ce8d3cc88dc12592		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D71 25784 bytes
font_01_sfnt_off000087fc.bin
8c2546387700f45186c395d475006178ee984eabbc175bcf1ee6eb58ba8b57aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87FC 3204 bytes
font_02_sfnt_off00009300.bin
e0ee4d28e9fbd90893640acb023fdb3433a7d18e360fd79b0a1965f7934d0c46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9300 18636 bytes

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