PDF malware analysis — malicious · a2faa1a8a29f6544

MALICIOUS

PDF

43.0 KB Created: 2021-06-14 02:01:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 78fd616362b14d5c10b28d016266725e SHA-1: dd1defa9d9301bce5c69df5d1527631a77609751 SHA-256: a2faa1a8a29f654480999dd67fe820dfc1dd08ac9852c6890e2fe18be51d4920

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 0.9971

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 http://netcdn.co/app/431946152/robux-free-robux-codes-game-hack PDF link annotation
- http://www.sovtigaz.ru/f/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-roblox-accessories_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/get-free-tiktok-followers-no-verification_GM835599320.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-coin-master-account_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/get-free-hero-animation-roblox_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-free-skin_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-robux-images_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-free-avatar-drawing_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-tiktok-followers-no-survey-or-verification_GM835599320.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/150-free-spins-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
`font_00_sfnt_off000049b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x49B6	26164 bytes
SHA-256: `2a99910af3da6358346b89af9edeabf3e7140520f7810c7422d02035eb732f9f`
`font_01_sfnt_off0000861a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x861A	18188 bytes
SHA-256: `dc8bf01913302101b4a6c43eb1a349b6e9af7584e9a53004a1d0826236b1d8bd`

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