PDF static analysis report

Static analysis result for SHA-256 b6b5af2587ab91fa…

SUSPICIOUS

PDF

35.2 KB Created: 2021-07-05 20:33:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 765eee0ece7302eb3c65cf3c81813d62 SHA-1: 748b0752f7a63aba3f18a5eb8a496e678183b9a0 SHA-256: b6b5af2587ab91fa010d9901051e9eb4c0983e9fc8ef1f80d0e4350624d3056c
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that promote "free Robux" and "Coin Master hacks," indicating a lure for users to download potentially unwanted or malicious software. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent to redirect users to a download site. Although no scripts were extracted, the document's content and heuristics suggest it's part of a phishing or social engineering campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.tw/app/431946152/roblox-free-robux-no-human-verification-game-hack PDF link annotation
    • https://digilib.darmajaya.ac.id/repository/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/how-to-hack-roblox-with-developer-tools_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-candy-van-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/how-to-get-free-robux-flamingo_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-items-on-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3153 22484 bytes
SHA-256: 3e9a7d44ad185be16967041ff27b3265674ea33db987b215576a2c7c2acf70d5
font_01_sfnt_off0000639c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 19408 bytes
SHA-256: d2ef309b92771ae7bb099a6b634574daefb8445dd777fce633f2a8c245e3903e