PDF malware analysis — malicious · c3b410ca1871055a

MALICIOUS

PDF

35.0 KB Created: 2021-07-01 17:32:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: f093a0390d504b78bceeded13845f1b9 SHA-1: 9ea03435d1facd8e2f8a0834017401d551b77f6e SHA-256: c3b410ca1871055a8c78b954d95de0bee7f5da315487dcf6490973ba4462dcfa

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free in-game currency to trick users into clicking malicious links. The primary link redirects to known malicious infrastructure, likely serving as a gateway to further malicious content or malware. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or redirection campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/cops-and-robbers-roblox-cheat-game-hack In PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-bubble-gum-leviathan-free_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/editthiscookie-roblox-hack_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-comroblox_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/funny-free-roblox-rthro-avatars_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-cookie-editor-hack_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_off000030d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30D0	22632 bytes
SHA-256: `1397570bf8ce3f60455a1a2bc363c5d50e7493a07d1b20b5c3caf4f27f8ab800`
`font_01_sfnt_off00006351.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6351	19104 bytes
SHA-256: `06e3edb60ad6b22f898c5b06c836c8416bd75796af2f7bc3476cba314e640508`

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