PDF malware analysis — malicious · 4dd389d68f1e1304

MALICIOUS

PDF

43.5 KB Created: 2021-05-12 15:07:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23

MD5: 136adc908c9b216149373ed77be411ea SHA-1: 4d4f9bfd865d279184a841ccb6d7731e80a6bb2e SHA-256: 4dd389d68f1e1304e285fb81f38ff896fe41c7f40e77ba03ab6702854bb84d51

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack or free currency generator. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://netcdn.xyz/app/406889139/how-to-hack-golden-card-in-coin-master-game-hack'. The document body, though partially obfuscated, also contains this URL and other similar URLs pointing to game-related cheats and downloads, reinforcing the lure. No scripts were extracted, but the presence of malicious redirector links and the lure strongly suggest this document is part of a phishing or scam campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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.xyz/app/406889139/how-to-hack-golden-card-in-coin-master-game-hack In PDF document text
- https://www.dc-itsolutions.com/userfiles/files/claim-free-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-download_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/bux-free-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/hack-master-coin_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-robux-pin-codes_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_003_off00004d7e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D7E	25488 bytes
SHA-256: `12e50c550c895f020ad111fef1dba2b4691bd48c572a26b54ed5de9c73cc1c71`
`font_01_sfnt_off00008829.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8829	18128 bytes
SHA-256: `6e99c01af804bf31f20ebf44881e4bc5fba6244af653fbf7f93a50858f61393b`

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