PDF malware analysis — malicious · 452d22b5004bd86b

MALICIOUS

PDF

35.6 KB Created: 2021-07-09 00:26:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 1c047b89020b8d8279a4202275478082 SHA-1: 51fd633e1918d1b94d1ad20cb49f6c9481c1e357 SHA-256: 452d22b5004bd86b906550fa459f69d404d5094b7040458cf35c918d01c8c044

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/free-coin-master-spins-2021-game-hack PDF link annotation
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-free-robux-unlimited-robux-and-tix_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-pants-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/easyrobux-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/hacks-roblox-csgo_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/robux-free-codees-legit_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/tiktok-free-coins-apk_GM835599320.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/robux-com-free_GM431946152.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_002_off00003445.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3445	22904 bytes
SHA-256: `3eb30c5d84d59e6d4310d6ed37e4318e6357f05d814014dc9f7fb69430739861`
`font_01_sfnt_off0000679c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x679C	18576 bytes
SHA-256: `b91ca07aeadef02c4833a5be8b217bc3af90c6c550000b8c217b6d13a7f4cb5d`

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