PDF malware analysis — malicious · 6565a3b9265aeb2b

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 00:20:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 052c59b4e3110c95388bc7539b295240 SHA-1: d93cf716118150c8ce907e99dd894921a71d5613 SHA-256: 6565a3b9265aeb2b6ce1eb2a94780dd1625c202407126c8d53e4a67cc88a89aa

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links and text referencing 'free Robux' and game hacks, designed to trick users into clicking. The primary link, http://netcdn.tw/app/431946152/free-robux-cards-game-hack, is associated with a lure for game hacks. While no scripts were extracted, the document's structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/431946152/free-robux-cards-game-hack PDF link annotation
- https://www.mpos-organs.com/uploads/files/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/roblox-hack-no-human-verification-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/free-robux-generator-codes_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/roblox-jailbreak-money-hack-2021-november_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/roblox-welcome-to-bloxburg-for-free_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/rbx-place-free-robux_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/roblox-cheat-engine-wall-hack_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/tiktok-free-view-iphone-6s_GM835599320.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/roblox-hack-script-list_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/how-to-get-free-robux-instructions_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.mpos-organs.com/uploads/files/files/oprewards-free-robux_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_off000030b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30B1	22140 bytes
SHA-256: `32302da3e2334acbc2dee9a54f20c35ec5b0f7f108e6c220b740212fc95b3081`
`font_01_sfnt_off000061c7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61C7	18888 bytes
SHA-256: `6c6de0ceaed5fc014d3dcce92ca1cb896bf7995edf6e50a0e815779b2f83a656`

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