PDF malware analysis — malicious · 0ff89e925bb5cfe2

MALICIOUS

PDF

44.6 KB Created: 2021-05-31 05:50:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 820cfb874771b553f1cbcb05d50953a6 SHA-1: a404592aa8e943597dc4207a04a08acb4d9403a5 SHA-256: 0ff89e925bb5cfe2e0310c71515cebae657619a3b76b4ecdcc8fff89ed2359f8

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.001 PowerShell T1059.003 Windows Command Shell

The PDF document uses a lure of a free Minecraft download to entice the user. It contains a heuristic firing for a clipboard command lure, indicating it likely instructs the user to execute commands via the command line or PowerShell. The embedded URL points to a suspicious domain, suggesting it is used to host or redirect to a malicious payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9942

Heuristics 4

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
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/minecraft-windows-10-edition-free-download-game-hack PDF link annotation
- https://www.amengineering.it/wp-content/uploads/fsqm-files/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/minecraft-free-online_GM479516143.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/roblox-script-hack_GM431946152.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.amengineering.it/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000047a7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x47A7	24796 bytes
SHA-256: `ff2e1a3a9f725b46a6cc91831d29d39e78b8b41a9b9085a86e87b9aaa27e0a79`
`font_01_sfnt_off0000805e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x805E	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off00008a6e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A6E	18764 bytes
SHA-256: `cc8d2d4a5b4bbe222845f4f655e2132ea290cc3fc507b9f2ca034e5c83bdcdde`

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