Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec9e3fa962f7eca4…

MALICIOUS

PDF

35.8 KB Created: 2021-06-25 07:06:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9038d161362a12076839f3c6734d03cc SHA-1: 3325b65e4ada6ff3ff8f5c925edc7d8fa70a9fab SHA-256: ec9e3fa962f7eca4477e29c8380270f6b4136143a4056399aa57cd9a70a348de
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are disguised as legitimate game-related resources but likely lead to malicious content or scams. The presence of a "download button" heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading further payloads. No scripts were extracted, but the overall structure and linked content suggest a phishing or malware distribution attempt.

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/roblox-2021-free-robux-give-away-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/face-png-roblox-free-face-q-se-queda-para-siempre_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/seniac-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-promo-codes-2021-november_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-swordburst-2-speed-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-promo-codes-2021-may_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
stream_002_off00002fc4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FC4 23388 bytes
SHA-256: 97ecfeaf0673fe37f4569f7b7266b74a4d625df7ada16902539ab41b2f9c04c0
font_01_sfnt_off00006481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6481 19772 bytes
SHA-256: 9dbd07289b6e72c81e331cc73fc992bff1ec191fb1e0ae0e9a31bd1e8755a4fb

Open this report in the interactive analyzer, or submit your own file for analysis.