PDF malware analysis — malicious · 302840b9b1f67deb

MALICIOUS

PDF

47.8 KB Created: 2021-05-14 21:09:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 8ff74edbcc2f85413fea4d52f864b6ea SHA-1: 80f5ca9bfb583d1edb787acb28ab242a8252df19 SHA-256: 302840b9b1f67deb5273d567bb81ebe5c15ab22a97e1e02e876c17326061b0b4

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector. The document body, though partially obfuscated, contains references to 'Free Roblox' and includes the malicious URL. This suggests the PDF is designed as a lure to direct users to a potentially malicious website for game-related cheats, which is a common social engineering tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9013

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/431946152/free-roblox-game-hack PDF link annotation
- http://meisterhaus-guterl.de/images/coin-master-spins-2021_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/free-robux-app_GM431946152.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/cheats-for-coin-master_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/infinite-robux_GM431946152.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/robux-hack_GM431946152.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/minecraft-font-free_GM479516143.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
- http://meisterhaus-guterl.de/images/free-coins-on-coin-master-2021_GM406889139.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_off00004950.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4950	31792 bytes
SHA-256: `a831d23b48076a514e0567399ad19323fff4569907f45f5f34338db1d99fbf36`
`font_01_sfnt_off00008fd0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FD0	2832 bytes
SHA-256: `77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2`
`font_02_sfnt_off00009980.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9980	17948 bytes
SHA-256: `abd46f863f925739c6779ba87e0350ce04166d926cbd983fd5dc50e2b294e41e`

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