PDF malware analysis — malicious · 7c5a818747ad0c77

MALICIOUS

PDF

45.5 KB Created: 2021-05-11 22:26:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 8aa06832f046800478e4c311df29e5fd SHA-1: ba1dbd1c5fe6e723fbf62c695cb3cb616ec888fb SHA-256: 7c5a818747ad0c7716d92fab92b154fceed0e8cdee1fd3ae12eb1ef7cbf2f6ad

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links to external websites, many of which are structured as SEO-optimized PDF links, suggesting a link farm. The document body and extracted URLs indicate a lure related to game hacks and cheats. The 'SE_CLICKFIX' heuristic suggests the document may instruct users to execute commands, a common tactic to bypass security measures.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

Heuristics 5

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.
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/minecraft-windows-10-hacks-game-hack
- https://d-fankhauser-metallbau.ch/images/free-spin-coin-master-link-2021_GM406889139.pdf
- https://d-fankhauser-metallbau.ch/images/how-to-hack-roblox-for-robux_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/free-robux-hack_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/coin-master-apk-hack-2021-ios_GM406889139.pdf
- https://d-fankhauser-metallbau.ch/images/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdf
- https://d-fankhauser-metallbau.ch/images/how-to-hack-coin-master-computer_GM406889139.pdf
- https://d-fankhauser-metallbau.ch/images/how-to-get-free-cards-on-coin-master_GM406889139.pdf
- https://d-fankhauser-metallbau.ch/images/how-do-you-earn-robux-on-roblox_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/coin-master-free-coins-link-facebook_GM406889139.pdf
- https://d-fankhauser-metallbau.ch/images/free-roblox-clothes-codes_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/facebook-coin-master-free-spins_GM406889139.pdf
- https://d-fankhauser-metallbau.ch/images/robux-free-gift-card-org-hack_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/aristois-minecraft-hack_GM479516143.pdf
- https://d-fankhauser-metallbau.ch/images/how-to-get-free-robux-on-iphone_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/free-roblox-hair-boy_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdf
- https://d-fankhauser-metallbau.ch/images/how-to-get-free-robux-not-a-scam_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/free-robux-codes-not-used_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/blox-supply-free-robux_GM431946152.pdf
- https://d-fankhauser-metallbau.ch/images/roblox-gift-card-free-codes_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b32.bin` `165f66e621713b9c29c3877112aab72dd3609fcfa79e61ec18d8a33134d6c1c7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B32	25120 bytes
`font_01_sfnt_off000083d0.bin` `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83D0	2940 bytes
`font_02_sfnt_off00008ddf.bin` `14f86b407040f424958936cb2b2b49b26067a8980bd50a77917f0563cc1bff87`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DDF	18696 bytes

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