PDF malware analysis — malicious · 2aa805b6d535a1a4

MALICIOUS

PDF

42.1 KB Created: 2021-05-16 18:34:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: d132bd9f370eda9655c756b7b06c3ad7 SHA-1: 53738b81dee8f971fd068ce49dc2e2ec5172fe9a SHA-256: 2aa805b6d535a1a4569586546a816eb76c03c085e032bcbe9068270d7ff926f3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA lure to entice users to click on a link. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a fake CAPTCHA heuristic confirms a social engineering attempt. The primary URL points to a resource related to game hacks, suggesting a lure for potentially illicit software or further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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 https://netcdn.xyz/app/431946152/roblox-person-game-hack PDF link annotation
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/free-roblox-card_GM431946152.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/coin-master-com_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/minecraft-free-android_GM479516143.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/coin-master-links-for-free-spins_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/roblox-hack-game_GM431946152.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
- https://www.badungtourism.com/new/public/ckfinder/userfiles/files/roblox-verification_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_003_off00004abf.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4ABF	24584 bytes
SHA-256: `f3838670ebae927083d082d5b4a4c05cadfd9ecefa2135e36ab7ba33652967e4`
`font_01_sfnt_off00008302.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8302	17936 bytes
SHA-256: `f4f04d29b57f2a72625fc9e352393071ee42f2c511d00c6ae5a127c0a3ffd084`

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