PDF malware analysis — malicious · cb1a75d8c4fa80d2

MALICIOUS

PDF

34.3 KB Created: 2021-07-02 02:07:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: a39190ce266a16e82fd3f2eaa33172f2 SHA-1: 9e24d78a1f7607d03ea9f2e7e70db24ab970bd28 SHA-256: cb1a75d8c4fa80d22408a5a3d65c15c4849f25b747a7fbfabe2dcddc22b0416c

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains lures related to game hacks and free in-game currency, directing users to a suspicious URL. This URL, http://netcdn.co/app/431946152/how-to-hack-the-cart-in-roblox-limber-ticoon-game-hack, is likely part of a phishing or malware distribution chain. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

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/how-to-hack-the-cart-in-roblox-limber-ticoon-game-hack PDF link annotation
- https://allhimalayantreks.com/userfiles/files/how-to-hack-free-robux-in-roblox-in-a-computer_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/what-games-give-you-robux_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/pubg-uc-on-discount_GM1330123889.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/free-coins_GM406889139.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/how-to-cheat-ninja-assassin-in-roblox_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/como-poner-hacks-en-roblox-en-orenador_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/free-roblox-level-scripts_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/roblox-get-free-robux-now_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/coin-master-money-hack_GM406889139.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
- https://allhimalayantreks.com/userfiles/files/coin-master-daily-free-spins-link_GM406889139.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_off00002f7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F7C	21924 bytes
SHA-256: `fa7d67f86b7985d6fad8a5845a5d47fed534b36da5bdafc4e64ce955f9ea78dd`
`font_01_sfnt_off00006006.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6006	19468 bytes
SHA-256: `35da52931c879b5890f78cfef9c8ab8433a3c3314e91d61fe8e023b069e7b3dc`

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