PDF malware analysis — malicious · 01ff226df140a555

MALICIOUS

PDF

47.4 KB Created: 2021-05-16 07:58:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: d7f1623aaff8f56ae4834f46e6d7c5b8 SHA-1: 53eae80e0fa8661fba4fe5fc333a146c80cfa9f6 SHA-256: 01ff226df140a55573361d356e5c7b620d62d7580960b5c1c573d2e02dc5b363

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF document contains a lure for 'free Robux' and impersonates the eBay brand, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple suspicious URLs reinforces the phishing and potential malware distribution intent. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9013

Heuristics 4

Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH

Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/free-robux-2021-no-verification-game-hack.
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/431946152/free-robux-2021-no-verification-game-hack PDF link annotation
- http://plastic-surgery.pl/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
- http://plastic-surgery.pl/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/coin-master-time-hack_GM406889139.pdfIn PDF document text
- http://plastic-surgery.pl/images/i-want-free-robux_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/roblox-generator_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
- http://plastic-surgery.pl/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- http://plastic-surgery.pl/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
- http://plastic-surgery.pl/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
- http://plastic-surgery.pl/images/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- http://plastic-surgery.pl/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://plastic-surgery.pl/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/free-robux-offers_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
- http://plastic-surgery.pl/images/free-printable-roblox-images_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/coin-master-hack-generator_GM406889139.pdfIn PDF document text
- http://plastic-surgery.pl/images/roblox-download-pc-free_GM431946152.pdfIn PDF document text
- http://plastic-surgery.pl/images/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.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_off00004948.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4948	28248 bytes
SHA-256: `6f7520799b1e42353f414b7fee968f32f73f79ac0b32d1a47049cf3412a42496`
`font_01_sfnt_off00008a8d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A8D	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off0000949d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x949D	19004 bytes
SHA-256: `66494d2150ad1cf2ec2ec7771a558690eaf6f54b49f1e3390ebbe78937767b49`

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