Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc6ca093b3ec0a1…

MALICIOUS

PDF

34.3 KB Created: 2021-06-19 03:51:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1ba5ec5901170fbf1b7d2b33b24abff9 SHA-1: 1515250004a1f011a778c2920d6b3eef1bc3de51 SHA-256: 6fc6ca093b3ec0a159a81c7abb060df4d58b969f1f824a9461fcc88f71b425a5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded URLs and a document body that attempts to lure the user into downloading game-related cheats and codes. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract traffic. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is part of a malicious distribution scheme.

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/free-roblox-girl-outfit-codes-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-roblox-sigh-in_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-sexy-roblox-costume_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/grand-theft-auto-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/tiktok-free-view-followers-app_GM835599320.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E66 22572 bytes
SHA-256: 61ef048a3d574e45cf57f7960f25b5edd21f53e5c8e2eb9345f2eb97f879e96f
font_01_sfnt_off0000609a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609A 19188 bytes
SHA-256: b831b7acb02b405f9fad29d4c72855696963761c52a7389bb27eb8912aec80a9

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