PDF malware analysis — malicious · 5057e56f55f200d1

MALICIOUS

PDF

45.7 KB Created: 2021-06-03 07:09:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 23d82e3b0893e95f94a8ef9e051875cf SHA-1: 4da766f1597a5b30d90a6ced37eab70b1d7a165c SHA-256: 5057e56f55f200d1b1c2f6d920653b8bbb031083c3dc2e6c1a7ac4491c1270a6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple external links, including one specifically identified as a 'free generator / game hack' lure. The document body, though partially corrupted, contains references to 'Coin Master Hack 2021' and directs users to URLs that appear to be related to game cheats and free currency. This strongly suggests a social engineering tactic to trick users into visiting potentially malicious websites. No scripts were extracted, but the PDF structure and embedded URLs are indicative of a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9797

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 https://netcdn.online/app/406889139/coin-master-hack-2021-game-hack PDF link annotation
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-ios-hack_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-robux-accounts_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/install-coin-master_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-roblox-account-generator_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/easy-robux-generator_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-roblox-premium_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005072.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5072	23800 bytes
SHA-256: `dc9a8b763e741063f67ae3d2e9d8b25d7e8eae03b345b439e2cd40954be3ce18`
`font_01_sfnt_off00008621.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8621	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008fd3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FD3	18116 bytes
SHA-256: `17974cef81917e5ef69542194afa433aff210173cc902887fbc2b56a9328dd03`

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