PDF malware analysis — malicious · 42fc33a97333346c

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 10:51:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 1945943bb50b4ee0b52d9e4125813b62 SHA-1: 1167ac529a971563a2cf44565d3150a105bf0a21 SHA-256: 42fc33a97333346cec5a2b783575d45d96f863df1761aa8a18640be169fa14d4

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 http://netcdn.tw/app/406889139/daily-free-spins-for-coin-master-game-hack PDF link annotation
- https://www.ocic.hr/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- https://www.ocic.hr/files/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
- http://www.ocic.hr/files/roblox-free-rixy-accowt-live_GM431946152.pdfIn PDF document text
- https://www.ocic.hr/files/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
- https://www.ocic.hr/files/coin-master-codes_GM406889139.pdfIn PDF document text
- https://www.ocic.hr/files/www-roblox-com-play-free-online_GM431946152.pdfIn PDF document text
- https://www.ocic.hr/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
- https://www.ocic.hr/files/free-superhero-skin-roblox_GM431946152.pdfIn PDF document text
- https://www.ocic.hr/files/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
- http://www.ocic.hr/files/games-for-robux_GM431946152.pdfIn PDF document text
- http://www.ocic.hr/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
- http://www.ocic.hr/files/robux-now_GM431946152.pdfIn PDF document text
- http://www.ocic.hr/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.ocic.hr/files/get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
- http://www.ocic.hr/files/is-there-a-working-roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.ocic.hr/files/beyond-roblox-hacks_GM431946152.pdfIn PDF document text
- http://www.ocic.hr/files/how-to-hack-leah-ashe-roblox-account_GM431946152.pdfIn PDF document text
- https://www.ocic.hr/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
- https://www.ocic.hr/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
- http://www.ocic.hr/files/how-to-get-free-pet-food-on-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_off000030d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30D1	22568 bytes
SHA-256: `d63e792eece4d383948fbe1befc1a42ddd15b242bfa57df886498d1a641c6f89`
`font_01_sfnt_off00006332.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6332	18596 bytes
SHA-256: `d68a34b156bc539a9175b9519b639082689f9c1ce84e1c9e30ec2d7eb2f7d22d`

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