PDF malware analysis — malicious · b44fa9c0d81d2c2e

MALICIOUS

PDF

42.9 KB Created: 2021-05-17 01:45:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 07c319af6e5d2de291f716ff5b5fdc21 SHA-1: 31849f7e6ad8f765090b5fc2cedaf837340b660b SHA-256: b44fa9c0d81d2c2e6c486614de68ecd98d9a425a5b6eefaa26479ee96a407afa

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits malicious behavior by embedding external URLs and employing social engineering tactics. The heuristics indicate a lure to execute commands via the clipboard, likely to trick the user into running a malicious payload. The document's content, though partially garbled, suggests a lure related to free game items or accounts, aligning with common phishing and malware distribution schemes.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 5

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 https://netcdn.xyz/app/479516143/free-minecraft-alt-accounts-game-hack
- http://solidcom.ch/images/rbxoffer-com-free-robux_GM431946152.pdf
- http://solidcom.ch/images/free-hacks-for-coin-master_GM406889139.pdf
- http://solidcom.ch/images/coin-master-free-spin-links-december-30-2021_GM406889139.pdf
- http://solidcom.ch/images/coin-game_GM406889139.pdf
- http://solidcom.ch/images/totally-free-coin-master-spins-2021_GM406889139.pdf
- http://solidcom.ch/images/coin-master-hack-tool-india_GM406889139.pdf
- http://solidcom.ch/images/coin-master-hack-apk-android_GM406889139.pdf
- http://solidcom.ch/images/minecraft-pe-hacks-2021_GM479516143.pdf
- http://solidcom.ch/images/how-to-get-robux-for-free-2021_GM431946152.pdf
- http://solidcom.ch/images/was-minecraft-ever-free_GM479516143.pdf
- http://solidcom.ch/images/blogspot-coin-master-spins_GM406889139.pdf
- http://solidcom.ch/images/coin-master-download_GM406889139.pdf
- http://solidcom.ch/images/roblox-studio-free_GM431946152.pdf
- http://solidcom.ch/images/coin-master-hack-without-verification-2021_GM406889139.pdf
- http://solidcom.ch/images/get-roebucks-com_GM431946152.pdf
- http://solidcom.ch/images/coin-master-hack-tool-v1-9-pc_GM406889139.pdf
- http://solidcom.ch/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
- http://solidcom.ch/images/daily-free-spin-coin-master-link_GM406889139.pdf
- http://solidcom.ch/images/united-gaming-net-coin-master-hack_GM406889139.pdf
- http://solidcom.ch/images/minecraft-windows-10-hack-client-2021_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004deb.bin` `4c47293b9f0fb9ae4509163e308026ee3564ab2300fbb8996ef59731344f77df`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DEB	25324 bytes
`font_01_sfnt_off0000868f.bin` `ca2704b96dad28857c40796bc5f3f160f1252a4638d6e656e043cddf4ab01458`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x868F	17924 bytes

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