PDF malware analysis — malicious · 0cb2ca8585637eeb

MALICIOUS

PDF

35.6 KB Created: 2021-06-27 08:36:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: b2c7a365d515821d67b771c7b3db99a4 SHA-1: 10e327fbbbfdb670363f7f9b6b7928b801c33dcf SHA-256: 0cb2ca8585637eeb5c2dc5e52884389a19bf3e4375f21678df5fbd749dcdc0b6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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/free-printable-roblox-birthday-banner-game-hack PDF link annotation
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/how-to-hack-dino-hunter-roblox_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-roblox-robux-hack-generator-no-survey_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/minecraft-survival-free_GM479516143.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/pokemon-go-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/pubg-uc-digi_GM1330123889.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/fly-hack-roblox-jail-break_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/real-free-robux-games-2021_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/get-free-robux-info_GM431946152.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://regattamaritimegroup.com/uploaded_files/userfiles/files/download-roblox-free-mundschutz_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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000337c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x337C	22264 bytes
SHA-256: `0ccaabe61baf3249b7afdef6f79fad6685972da30ae61eb141b98a5a39135177`
`font_01_sfnt_off000064dd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64DD	19548 bytes
SHA-256: `d1c71b22311c33bcc51ac78b5d6b7ffa3d99456cbf4d3a1d049c23f853175cc9`

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