PDF malware analysis — malicious · fe16f8665d9ed7e5

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 14:13:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: e0f0b10442202565d4f0488ed101b9c4 SHA-1: 538396bbc32460c7a27b2e6c3bac81dc06d6f17b SHA-256: fe16f8665d9ed7e51679b52fbe64ac967aae5c2f5b5a7a2dbe71596de0bc4549

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/how-do-you-get-minecraft-for-free-game-hack PDF link annotation
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/jailbreak-robux-hacks-2021_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/gfx-maker-free-roblox_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/freecoins_GM406889139.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/free-tiktok-coins_GM835599320.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-make-bc-no-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-hack-peoples-accounts-in-roblox_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/roblox-cheat-engine-hacks-2021_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/how-to-hack-for-more-cash-in-roblox-wizard-tycoon_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/roblox-my-boyfriend-cheated-on-me_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/roblox-points_GM431946152.pdfIn PDF document text
- https://www.orbai.ai/uploaded_files/userfiles/files/wls3-roblox-hack_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_off00003237.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3237	22404 bytes
SHA-256: `0ca9d4e8d3571a51e63c38cdb6c8779c8e010443fe53c616beae2e24ed125f1f`
`font_01_sfnt_off00006324.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6324	18632 bytes
SHA-256: `e84ad285f341e438f0b586e1c1e30148e409f2a1e76744d3c2f453220977198e`

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