PDF malware analysis — malicious · d33d14545f586b38

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 01:20:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 5c7269670e86727c04cf1a24e2d87656 SHA-1: e308933ebd86c7d8707d4b90ae84110f3409744d SHA-256: d33d14545f586b38be1af81df7553b8d1d9b1e85ea9905a8f59cbeaeddfa2b14

222 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF document contains numerous links to external websites, many of which are disguised as game hacks or generators for popular games like Coin Master and Roblox. The document also includes social engineering lures, instructing users to copy and paste content into command-line interfaces, a tactic often used to bypass security restrictions and execute malicious payloads. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into visiting potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 7

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.
Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
ClickFix social engineering attack high SE_CLICKFIX

Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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/coin-master-free-spins-activegamer-game-hack PDF link annotation
- http://library.poltekkes-palangkaraya.ac.id/repository/crystalsheepyoutube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/robux-hack-free-no-verify_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/aimbot-roblox-hacks-2021_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/como-hackear-roblox-en-pc-para-tener-ventajas_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/comment-hacker-et-avoir-des-robux-gratuitement_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/hack-roblox-steven-s_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/hacks-para-roblox-sin-inyectores_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/regular-roblox-free-robux_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id//repository/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/free-robux-on-ipad-pro_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/copy-and-paste-to-terminal-robux-hack_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/roblox-how-to-hack-into-gallant-gaming-account_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id//repository/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/roblox-jailbreak-hack-app_GM431946152.pdfIn PDF document text
- http://library.poltekkes-palangkaraya.ac.id/repository/rich-free-roblox-accounts_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_off0000336e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x336E	22896 bytes
SHA-256: `45298ad64618b9998a3fb745c9f087ac3503d928ebc997cbca5920dfcff11832`
`font_01_sfnt_off000066c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66C4	18548 bytes
SHA-256: `85433ac8e2cde4db0bf7edc9f1398718ea4df069310ae2c497be062e8b4ae894`

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