Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bcabd005301d078…

MALICIOUS

PDF

43.8 KB Created: 2021-05-18 05:31:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 760fea0fd638d44afb9c4f579b331b26 SHA-1: c5c6ded4a666f15e9268c1534eee85d01dd16d4a SHA-256: 1bcabd005301d07855f0e491f4e479792f62c65bcaade9e93aa6a9666eb519ee
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are SEO-farmed to appear as legitimate resources for game cheats and currency. The document body and extracted URLs suggest a lure for users seeking advantages in games like Minecraft and Roblox. The presence of numerous external links indicates a high likelihood of directing users to malicious websites or download pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-anarchy-server-no-hacks-game-hack PDF link annotation
    • http://immo360grad.com/images/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-spins-on-coin-master-hack_GM406889139.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_003_off000047a6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47A6 24352 bytes
SHA-256: 503e8414d1b5815cbedb586264024c7f9162a09b731fd30bd0593e46ab62efa4
font_01_sfnt_off00007ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC5 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8876 18340 bytes
SHA-256: 25c1286fde013f5a892faec283bed83878941bbea70c27f39483b80af7cfb438

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