PDF malware analysis — malicious · 1c2e5098490c6a7c

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 12:15:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 3045fff3b9141105dc0d7fb2d7d88ff1 SHA-1: 70dd8f291a29582b04fb22e1bda655a04cdf6c0c SHA-256: 1c2e5098490c6a7cad344033a5c0864aa3e68d6aa9560c9b0fd01cc252ef7464

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded links, many of which point to pages offering 'free Robux' or game hacks, suggesting a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of a mass external link farm further supports this assessment. The document likely aims to trick users into clicking these links, potentially leading to malware downloads or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

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.
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 http://netcdn.co/app/431946152/https-free-robux-cf-game-hack PDF link annotation
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-free-robux-ad-2021_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-hack-us_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-fighting-roblox-game_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/fly-hack-prison-life-roblox_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-robux-hack-on-phone_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/secret-free-robux_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/easiest-way-to-upload-audio-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-hack-someones-account-on-roblox-vr3million_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/hack-para-murder-mystery-2-roblox-2021_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/gamnes-that-give-free-robux-without-pass_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/can-you-make-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-10k-robux-by-redeem-code-free_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/when-you-get-hacked-on-roblox-rage-quit_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/hacks-para-wall-por-el-chat-roblox_GM431946152.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
`font_00_sfnt_off000030f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30F6	22664 bytes
SHA-256: `232d35ab75a4694dd228375804363fc0a68fd07ad9f86498f5c38cc22d934847`
`font_01_sfnt_off000063d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63D6	18808 bytes
SHA-256: `6c41b645cfe5782764888e2e95c2aaef15f2b2e6a301f2e5ed746abc80bb13e5`

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