PDF malware analysis — malicious · fd81c4e2defaac05

MALICIOUS

PDF

44.3 KB Created: 2021-05-14 07:57:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 6b263dc238d417603c45f807fd09476c SHA-1: d604b00d935ba09bce07d70669cb4435331ba46d SHA-256: fd81c4e2defaac05d39de85f6841a1bc7edea7ade67658887266cdb844dbd217

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 https://netcdn.xyz/app/406889139/coin-master-fan-club-game-hack PDF link annotation
- https://mtsn1siak.com/__statics/gudangsoal/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-today_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-robux-download_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-game-pack-coin-master_GM406889139.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
`stream_003_off00004bdd.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BDD	28864 bytes
SHA-256: `49062f5d150ca8c93bfe9a7470069e89c646af51e50960394ed06d3292a3eb71`
`font_01_sfnt_off00008b9e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B9E	18080 bytes
SHA-256: `1b58ad6ca3986db2e615a45b5b3b997af56259df789f1331e37082b56e43c60a`

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