PDF malware analysis — malicious · 8de4e18877394e48

MALICIOUS

PDF

33.6 KB Created: 2021-07-08 10:27:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: e42c89f67bda65a45774e2b13a773719 SHA-1: c1e9a77e86e53ca444c93fa3d9c714b42b994954 SHA-256: 8de4e18877394e48971476beaab78316d50500fe51ab8539ba2a8ec5ecd88de2

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a prominent link to a website promising game hacks and free in-game currency, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple related URLs reinforces the malicious intent. The document likely serves as a lure to redirect users to a site that may host further malicious content or attempt to exploit vulnerabilities.

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/hack-coin-master-no-human-verification-game-hack PDF link annotation
- https://www.wetotravels.com/uploaded_files/userfiles/files/its-free-roblox-logo_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/roblox-hair-girl-free_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/hunting-simulator-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/roblox-hack-me_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-no-logo_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/roblox-hack-robux-online_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/how-to-spped-hack-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-games-hack_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-hack-unlimited-spins-game-download_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/roblox-how-to-get-anything-for-free_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_off00002e54.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2E54	22324 bytes
SHA-256: `63aacb5ce8f5f9817e41ae1938845e763ea3ab62bf93b84063f87a8e56aa084a`
`font_01_sfnt_off00005fc6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FC6	18540 bytes
SHA-256: `cd7885bd0141873d48a200c26faf1a5b7e84495b723be12c592fcfdcd6c6cc24`

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