Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb68598e69c3cae3…

MALICIOUS

PDF

253.1 KB Created: 2021-04-05 16:29:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ffb064f22d499333c7af000f62e52ae0 SHA-1: 63ad8a33491569a3cee97f17a56fc8c3bf9f5de8 SHA-256: eb68598e69c3cae38a4d75cc0466f2e9adc3e5deb50024c290368a0dec44a2a3
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and heuristics indicating it is a phishing lure related to 'free Robux' for the game Roblox. The presence of a 'password-protected archive' lure suggests the document is intended to trick the user into downloading and then opening a password-protected malicious archive. The ClamAV detection further confirms its malicious nature.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3043

Heuristics 5

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://gaminggenerator.org/app/431946152/how-to-free-robux-on-phone
    • http://rose-mari.com.ua/images/how-to-get-free-catalog-items-on-roblox-pastebin.pdf
    • http://aistplus.ru/images/como-ser-hacker-en-roblox-skywars.pdf
    • http://fm-express.de/images/iron-spider-roblox-free.pdf
    • http://ehma.com/images/lucky-patcher-free-robux.pdf
    • http://www.centrodelsorriso.it/images/how-to-hack-roblox-robux-with-cheat-engine-66.pdf
    • http://www.popikalogirou-realestate.gr/images/how-you-hack-roblox.pdf
    • http://badboybiteaway.de/images/free-pastebin-robux.pdf
    • http://possumholler.us/images/roblox-com-avatar-free.pdf
    • http://www.lascalamilanowallcovering.it/images/how-to-get-doge-head-on-roblox-for-free.pdf
    • https://www.ncscolour.no/images/inspect-robux-hack.pdf
    • https://itv-grabungen.de/images/free-robux-stuff.pdf
    • https://www.kambati.co.za/images/como-meter-hacks-a-roblox.pdf
    • http://www.compusiteinc.com/images/jailbreak-cheats-roblox-money.pdf
    • http://rose-mari.com.ua/images/free-robux-form-rbfarm.pdf
    • http://gops.pruszczgdanski.pl/images/i-hacked-lolpuggys-roblox-acount-ha.pdf
    • http://dmoraitis.gr/images/roblox-robux-hack-cheat-engine-63.pdf
    • http://iglesiashispanas.org/images/free-roblox-redeem-pins.pdf
    • https://gomsa.nl/images/robux-hack-no-survey.pdf
    • http://awakeningtruth.org/images/hacks-on-roblox-assassin.pdf
    • http://www.bripi.pl/images/how-to-hack-roblox-for-robux-2021.pdf
    • http://wiesbadener-marktplatz.de/images/roblox-free-robux-no-survey-or-download.pdf
    • https://liceucastrodelapenya.com/images/gravity-hack-roblox.pdf
    • http://dream-house.de/images/how-to-hack-roblox-usesing-python.pdf
    • http://lllaw.eu/images/free-stylish-animation-for-roblox.pdf
    • http://britishcomics.com/images/cach-co-do-free-trong-roblox.pdf
    • https://eurekaaccounting.co.za/images/roblox-hack-tap.pdf
    • https://piscinasmundoacuatico.com/images/pastebin-roblox-speed-hack.pdf
    • http://pisanie-nut.pl/images/roblox-dragon-ball-af-hacks.pdf
    • http://www.cosver.nl/images/roblox-name-script-hack.pdf
    • https://gzog.pl/images/hack-roblox-game-jailbreak.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000395a6.bin
0f1ad990ccd8936f00aa628e1e42b4ca5526ca54a0cd9e3ddcaa32f6f46418d8
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x395A6 24716 bytes
font_01_sfnt_off0003ce07.bin
5c69cc4bed9741c3a1a260a01265fcb7ea5eaa206cdae3ee4fef0609a45bb7e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x3CE07 17892 bytes