PDF malware analysis — malicious · de5d8b0a94ec371a

MALICIOUS

PDF

46.4 KB Created: 2021-05-15 02:31:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: e2362678ea218c8eb1f36b82297aae4e SHA-1: 1ec1ea1984d4142a8c923c248c438c9d0b4e08c9 SHA-256: de5d8b0a94ec371a51d26586b8ef9d98bb643ffdf54eb639c68a206056dbd615

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with a primary focus on 'game hack' lures. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' indicates the document's intent is to redirect users to potentially malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering tactic to trick users into downloading further malicious content or visiting phishing pages.

Machine Learning

Nyx PDF Classifier malicious score 0.8696

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.xyz/app/406889139/www-coin-master-hack-com-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hacks-para-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/wurst-minecraft_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hack-coin-master-net_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/wurst-mc_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/robux-generator-no-verification-needed_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-minecraft-realms-to-join_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-op-minecraft-servers_GM479516143.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
`stream_003_off0000492c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x492C	24184 bytes
SHA-256: `856f7bd43567d5f8b452ffda357bcacc8bebbeca0aecdb2f274c3818d76c0df4`
`font_01_sfnt_off0000806d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x806D	7332 bytes
SHA-256: `d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d`
`font_02_sfnt_off00009286.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9286	18336 bytes
SHA-256: `98b72f07f157dd659abe6b90bb941092e2c9091b5a98e7ee6b0c4f52701e1412`

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