PDF malware analysis — malicious · a45da4f00e7949a9

MALICIOUS

PDF

42.3 KB Created: 2021-05-11 19:01:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 238479474b1b6250c764060121e1bb92 SHA-1: e6c54aedca67e9ebab631069264bbb9bdeb6b09b SHA-256: a45da4f00e7949a9acbb2c286570c2adca05935ba0d720fe5daf2cd55c9d6bf0

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically `https://netcdn.xyz/app/406889139/coin-master-3.5.33-android-hack-game-hack`. The presence of a visual download button and the ML classifier's high confidence score further indicate malicious intent. The document appears to be a lure for downloading a game hack or cheat, which is a common social engineering tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 3

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/coin-master-3.5.33-android-hack-game-hack In PDF document text
- https://www.essentracomponents.com.my/images/village-4-coin-master_GM406889139.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/get-more-robux_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/free-robux-live_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/coin-master-shield-hack_GM406889139.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/minecraft-tools_GM479516143.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/mcpe-com_GM479516143.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
- https://www.essentracomponents.com.my/images/coin-master-free-spins--coins-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_003_off00004906.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4906	25232 bytes
SHA-256: `7460f9bd78da6806e42e8526f5797c8fe57d32f3a2a8dedb87b0783c7332d4cd`
`font_01_sfnt_off00008311.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8311	18264 bytes
SHA-256: `55c2b7ac9e268c18f22df13ff8772fb9709c3f9370fdb7d4bb72adcf8037ad96`

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