PDF malware analysis — malicious · e98c0cc649f588f2

MALICIOUS

PDF

43.9 KB Created: 2021-05-17 09:48:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: c9beb69456883f3c38e1a954d7666760 SHA-1: c4d21de1f4677fcd49cb921cb165e0d4a98a0222 SHA-256: e98c0cc649f588f2f791cf062b0a0ca5a22dffd02996843dea87591b13cb1a4a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The document contains a direct link to a suspicious executable disguised as a game hack. The 'SE_CLICKFIX' heuristic indicates the document likely instructs the user to execute a command or open a file, bypassing typical macro security. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading and running malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 4

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 https://netcdn.xyz/app/479516143/wurst-1.12-game-hack PDF link annotation
- http://www.backlineservice.nl/images/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
- http://www.backlineservice.nl/images/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/free-robux-generator_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/minecraft-cheat-client_GM479516143.pdfIn PDF document text
- http://www.backlineservice.nl/images/spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
- http://www.backlineservice.nl/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/roblox-lovenet_GM431946152.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
- http://www.backlineservice.nl/images/coin-master-free-soins_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_off00004f28.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F28	26008 bytes
SHA-256: `57603ad78ecd53ada6a5f476d168dcd988bb23933d7376d35c6e9cbd9acc0bab`
`font_01_sfnt_off00008aca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ACA	17856 bytes
SHA-256: `231ed0e7957a5c445c778f0fe1c9318810f2b5562dc1cd2ae15ff2a5633334db`

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