PDF malware analysis — malicious · 1238a23abac2c30f

MALICIOUS

PDF

39.2 KB Created: 2021-06-19 18:10:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: bb752663b1f3ee6f25a1a5f1555ac825 SHA-1: ebe596c2f446c0923d258fb05032ea34352bb218 SHA-256: 1238a23abac2c30ff80c5e88f16af6203c69eabb88cf581f9d08fc7db4de6e8f

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual download button, strongly suggesting a lure for users to download potentially malicious software, such as a 'robux hack'. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure indicate an attempt to trick users into executing further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9985

Heuristics 4

Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/robux-hack-download-pc-game-hack PDF link annotation
- https://www.astrospace.com.tw/upload/files/google-site-get-free-robux-roblox-easy_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-map_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/how-to-get-free-roblox-animations-2021_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/roblox-hack-client_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/robuxy-com-generator_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/pokemon-go-free-lures_GM1094591345.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/free-robux-clothes-roblox_GM431946152.pdfIn PDF document text
- https://www.roblox.com/.IIn 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_off00003f13.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3F13	23332 bytes
SHA-256: `01f02e801a1efe95819d11eaabe6ba52c65edb2a8c8cd9e6c88404bc36ca0d0f`
`font_01_sfnt_off00007344.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7344	19456 bytes
SHA-256: `9af7050b878d6cab55911e9f2b55172943e13733601e95f22dde3bde214bcabf`

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