PDF malware analysis — malicious · 752dd7f0bbd40373

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 15:44:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: b6bdc45edbc9ec119f3398910e410e2a SHA-1: e48a4a4ab9b08519c005680b60a284d634a8906f SHA-256: 752dd7f0bbd40373dc0b558abb04fa3832411467aab9b4047f71bdfe45934a82

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.tw/app/406889139/cone-master-game-hack PDF link annotation
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/oh-yeah-yeah-shirt-on-roblox-free_GM431946152.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/earn-free-robux-rbx-blaster_GM431946152.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/free-robux-card-generator_GM431946152.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/how-to-unban-from-polyguns-roblox-free-script-pastebin_GM431946152.pdfIn PDF document text
- https://www.ombalicargo.com/new/public/ckfinder/userfiles/files/free-robuxcom-no-survey_GM431946152.pdfIn PDF document text
- https://ombalicargo.com/new/public/ckfinder/userfiles/files/omg-free-robux-hack-no-inspect-or-waiting_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
`stream_002_off00003063.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3063	23252 bytes
SHA-256: `62afe065bd58be73b31e504aea05d15e8f6d3540e613aad3e68fe5a4a93dff94`
`font_01_sfnt_off0000650d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x650D	17712 bytes
SHA-256: `1d2b8c84664aeb21ec7d812a4df566ec291b937f93597c41560adcddb13db525`

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