PDF malware analysis — malicious · 43cc40dbcbb0d7df

MALICIOUS

PDF

48.7 KB Created: 2021-06-03 16:02:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: ba566b064c77e3e76093e900bfb1bb2e SHA-1: e469e4c7fd71eb74eb8366ec3f55d0c80d84832d SHA-256: 43cc40dbcbb0d7dffc2c4cd4e336669829d64abd9ef776bce7f12ed5b174751f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically targeting users with lures related to game hacks and free spins. The primary malicious URL identified is https://netcdn.online/app/406889139/coin-master-daily-free-spins-2021-game-hack. This suggests the document is designed to lead users to potentially malicious websites or phishing pages, likely as part of a broader social engineering campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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.online/app/406889139/coin-master-daily-free-spins-2021-game-hack In PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-extra-spins_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/tradelands-roblox-cheats-see-in-dark_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-money-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-often-pubg-uc-appointments_GM1330123889.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-com-real_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_004_off00005166.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5166	27664 bytes
SHA-256: `62b3ab9c8f11b500c422ec648b2a74cba8301fdd4299bfd97a67bbff4308d004`
`font_01_sfnt_off0000906f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x906F	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00009a21.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A21	18708 bytes
SHA-256: `0e09573a858265cfc65c534eb28458a66078312e2bd7bae94317e03ea41fcd19`

Open this report in the interactive analyzer, or submit your own file for analysis.