PDF malware analysis — malicious · abde58c50efbc351

MALICIOUS

PDF

48.1 KB Created: 2021-05-10 17:24:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 15bac495d9ef9c874048d3cbce6aa01a SHA-1: bd784fda27b055594faeba3dd7aa625b95524cc2 SHA-256: abde58c50efbc35104a159366a2c48ab499ffb9c86959ae3f060944d0b50226b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA to lure the user into performing an action, likely to download a malicious payload. The embedded URL points to a resource that is likely the second-stage payload. The ML classifier strongly indicates maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9911

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/406889139/https-iosgods.com-topic-20218-flip-master-coins-hack-game-hack PDF link annotation
- https://www.apollowebdesign.in/images/is-free-robux-real_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
- https://www.apollowebdesign.in/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://www.apollowebdesign.in/images/ww-roblox-come_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/roblox-free-no-download_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
- https://www.apollowebdesign.in/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.apollowebdesign.in/images/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- https://www.apollowebdesign.in/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
- https://www.apollowebdesign.in/images/freerubux_GM431946152.pdfIn PDF document text
- https://www.apollowebdesign.in/images/robux-no-human-verification-2021_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_off000049be.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49BE	28952 bytes
SHA-256: `f143f320cbb07714ecdbaa35e462df8e6ec0b9624198cdcc8e9160a291bf1f1e`
`font_01_sfnt_off00008c59.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C59	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off0000960b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x960B	19568 bytes
SHA-256: `ba0c2357841514b25ef677c789633d0ce20c859ae160f909f0b7ccd586883e8f`

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