PDF malware analysis — malicious · ef1ceb9eb4ac7fda

MALICIOUS

PDF

240.1 KB Created: 2021-04-05 07:48:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 564416b4925082a2e2de8e095a3827f2 SHA-1: 95b13271f9ded95fab528b7c77a56909f536bfdb SHA-256: ef1ceb9eb4ac7fdaa736c9653f640084b66ea7775fc072b10a1ce233ee0f77b0

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is a PDF that uses a lure related to obtaining free Robux, a virtual currency for the Roblox game, to trick users into downloading it. The ClamAV detection and ML classifier indicate malicious intent, and numerous embedded URLs point to potentially malicious domains. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead users to phishing or malware download sites.

Machine Learning

Nyx PDF Classifier malicious score 0.5773

Heuristics 4

ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
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-get-free-robux-2021-no-inspect PDF link annotation
- http://museumkk.ru/images/admin-free-robux.pdfIn PDF document text
- https://gigbagwinkel.nl/images/como-hackear-roblox-adopt-me-2021.pdfIn PDF document text
- http://kfz-service-etp.de/images/free-robux-tampermonkey-code.pdfIn PDF document text
- http://www.teapotjewelry.com/images/how-to-be-a-hacker-in-roblox-2021.pdfIn PDF document text
- http://www.occquimica.com.br/images/nonsense-diamond-roblox-hack-download.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/gamepasses-roblox-free.pdfIn PDF document text
- https://weightlessriding.com/images/how-do-u-get-free-robux-on-roblox-on-ipad.pdfIn PDF document text
- http://logisticgroup.co/images/roblox-gift-card-redeem-free.pdfIn PDF document text
- http://cmme.it/images/jailbreak-roblox-free-money-hack.pdfIn PDF document text
- http://bf-sozidanie.ru/images/roblox-2021-where-to-get-free-clothes.pdfIn PDF document text
- http://www.fluidtech.hu/images/prestonplayz-hacked-my-roblox-account.pdfIn PDF document text
- https://pagadder.com/images/roblox-pinewood-hack-script.pdfIn PDF document text
- http://76remont-kvartir.ru/images/how-to-get-free-infinite-robux-in-roblox.pdfIn PDF document text
- http://jakthund.org/images/script-hack-bloxburg-roblox.pdfIn PDF document text
- https://gigbagwinkel.nl/images/aim-hacks-for-roblox.pdfIn PDF document text
- https://verdensbarn.no/images/free-egg-roblox-eggcellent.pdfIn PDF document text
- http://solidcommunication.ch/images/free-robux-hack-no-human-verification-2021.pdfIn PDF document text
- https://www.colditex.com/images/roblox-hack-week-2021.pdfIn PDF document text
- https://www.lomrad.go.th/images/roblox-mad-city-free-car-glitch.pdfIn PDF document text
- http://w-i-r.de/images/rbl-free-robux.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00036a5c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x36A5C	21532 bytes
SHA-256: `ed83faae2f0e5a19f6c8ddaa103479d407846d6dd6dd3239f7bb3683b94abdb0`
`font_01_sfnt_off0003994c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3994C	18584 bytes
SHA-256: `c2a705d02dd45c72c96531b43218c2869ba16644cefdb78676b3f3ce332b215c`

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