PDF malware analysis — malicious · 2ac485981b0568ab

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 07:04:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 6a7bbaefc1f4d709ec2b8cd8fd169c87 SHA-1: fe5cc090b67d9de8cc8696935320cefcb1c20579 SHA-256: 2ac485981b0568abe010643af1886c713a0f6c8364c2ad0ee35c76bb985e77e3

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector. The document body, though partially corrupted, contains text related to 'Blogger Coin Master Free Spins' and embedded URLs pointing to similar lures. This suggests a phishing or scam attempt designed to trick users into visiting malicious websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/blogger-coin-master-free-spins-game-hack PDF link annotation
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/freespins-coin-master_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-free-pin_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/minecraft-client_GM479516143.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/login-robux_GM431946152.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-on-phone_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_004_off00005187.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5187	25216 bytes
SHA-256: `d5417469e518bd88b09d49b7facdfb626e3338fe084539c5dc6b2acad3ff1a4c`
`font_01_sfnt_off00008abb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ABB	18464 bytes
SHA-256: `0911799b9aa5b6ecf8f75e1ae71094da345a4ed5579c86b7800e8f9c3f9f610d`

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