PDF malware analysis — malicious · ca0ef52a68fd7253

MALICIOUS

PDF

35.4 KB Created: 2021-07-07 05:25:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 89d8ce9bc17e0fafca6bc5944b63b7aa SHA-1: dd9f1d9336e905c289ef83bac5eb74920407c5ad SHA-256: ca0ef52a68fd72538ab0f58fed2891e14d8f6a75f9ea3ffcb8fc6dcbaa7c12df

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/how-to-earn-free-stars-on-coin-master-game-hack PDF link annotation
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/cheat-engine-fly-roblox_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/roblox-robux-pc-hack_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/hacking-roblox-with-cheat-engine-2021_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/knife-hack-roblox_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/minecraft-iphone-free_GM479516143.pdfIn PDF document text
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot-april-2021_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
`stream_002_off00003396.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3396	23388 bytes
SHA-256: `6f03669c89fd4ff9ead6cb7828b0abc1f31d75d9f49bd8d69e2c97eda6fd2f03`
`font_01_sfnt_off0000680d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x680D	18164 bytes
SHA-256: `206ec2fa2beec61bc2963600def69606a77f0c86fc91077dfbcf01872e6f56c0`

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