PDF malware analysis — malicious · 76dadca34901171f

MALICIOUS

PDF

45.8 KB Created: 2021-05-13 13:34:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: db7d0882fec27905036a5ce80c26672a SHA-1: 12647981546b4bd7c59e73df523a149b915ab175 SHA-256: 76dadca34901171f9b7e11b0d7992a0de35f1d94c1010490e0ca123c77dcadcd

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 0.9432

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/free-coin-spin-daily-link-for-coin-master-game-game-hack PDF link annotation
- https://www.imagevideo.info/images/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
- https://www.imagevideo.info/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/roblox-hack-client_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/chisel-and-bits-mod-minecraft-pe_GM479516143.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/free-robux-easy_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
`stream_003_off00004ad6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AD6	25504 bytes
SHA-256: `e751d6e55930b352668557d02d2f8472d81d67e3adf52f13d603b7b30dbc9649`
`font_01_sfnt_off0000854c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x854C	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008f37.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F37	18740 bytes
SHA-256: `3d6a31775367f09fd823e433005fbc6854aa1a57d788779a182f8121a8266641`

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