PDF malware analysis — malicious · 53e144b106bbfae0

MALICIOUS

PDF

44.1 KB Created: 2021-05-14 07:02:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 5dbccbe0a31b115edfd5dcfaab9e0ef0 SHA-1: 41e18b2396cada1b9f54f43d0b990211b7fd9dff SHA-256: 53e144b106bbfae08bfb46e495e19aa8c0929cb8b93aab4a813fb690a7e626b5

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 0.9648

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/479516143/minecraft-free-android-game-hack PDF link annotation
- https://www.smartitbg.com/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/oginject-co_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/coin-master-fun-hack_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
- https://www.smartitbg.com/images/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/free-100-robux_GM431946152.pdfIn PDF document text
- https://www.smartitbg.com/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.smartitbg.com/images/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.smartitbg.com/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/download-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
- https://www.smartitbg.com/images/roblox-girl_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_off00004927.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4927	24720 bytes
SHA-256: `3fa620832883d931dd3e0c3575576e4eed31988b2a5b6787003eab6c565cf68c`
`font_01_sfnt_off00008137.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8137	2820 bytes
SHA-256: `972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714`
`font_02_sfnt_off00008ad6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AD6	17884 bytes
SHA-256: `82c3baf37781722f94369c3593b69e30ff14556e6fd52427afe75c94c9d4ce60`

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