Malicious PDF — malware analysis report

Static analysis result for SHA-256 03c51324057863b8…

MALICIOUS

PDF

46.3 KB Created: 2021-06-11 09:50:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 421e7ce724b2e9288f37ea0e778a613e SHA-1: 55fcef7f01ab0df535a316fbc39d875b04e5d51c SHA-256: 03c51324057863b84cf5433a5d228b3dee7b7ff91bb0d3a673ad9348dc273204
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous URLs pointing to sites offering game hacks and cheats, indicating a lure for users to download potentially malicious files. The presence of a 'password-protected archive' heuristic suggests the document is part of a multi-stage attack designed to bypass security filters. While no scripts were directly extracted, the embedded URLs and the nature of the lures strongly suggest a downloader or exploit delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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.tw/app/431946152/roblox-robux-hack-february-2021-game-hack PDF link annotation
    • http://italianconnectionsleaford.co.uk/images/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/get-robux-now_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/hacks-for-roblox-royale-high_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-no-clip-in-roblox-no-hack_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-get-robux-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/pokemon-go-free-bot_GM1094591345.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ecc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ECC 24112 bytes
SHA-256: b997a99e30ce93939d593242785308c075d4d69d5af4c05038658ca6074c163b
font_01_sfnt_off000085d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D9 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F87 19068 bytes
SHA-256: 24e4ea622f64a6b057751911a1edb914e7ba8c3e290a739dd28994d59e19dea6

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