PDF static analysis report

Static analysis result for SHA-256 5280fb77c5fd4808…

SUSPICIOUS

PDF

33.6 KB Created: 2021-07-04 07:41:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5a21366d5ba9d84839112e48e8bce13e SHA-1: 42d363e0086d141cac54a8bbb5f6c69529f7e108 SHA-256: 5280fb77c5fd48081697569de78c7d5dffa850e8cf48f665dbc81e541e38ca34
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text referencing game hacks and free currency, strongly suggesting a lure for users to download potentially malicious software. The ML classifier also flagged this PDF as malicious. The primary IOC is the URL http://netcdn.tw/app/431946152/robux-in-game-hack, which is likely the download location for the payload.

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/robux-in-game-hack PDF link annotation
    • https://mountainholidaytreks.com/userfiles/files/como-ser-hacker-en-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/toolbox-apk_GM479516143.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/roblox-hack-2021-forum_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/how-to-hack-someone-for-robux_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-links-for-free-spins-2021_GM406889139.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_off00002dc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC2 22336 bytes
SHA-256: 1bf2a9f20a8b93b197218f3f1a6e6ed463bdf0901b2265ef69da52aef2e136e0
font_01_sfnt_off00005f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F92 18552 bytes
SHA-256: 0d067593471fd495c76aa0173ccdec3c7a57065eb2f68b568cda202f17f51f7f

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