PDF malware analysis — malicious · 23bb2b8298c35773

MALICIOUS

PDF

47.1 KB Created: 2021-06-01 18:34:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 88b11b69c8fcff1df75a76614013ada0 SHA-1: 6859038e515ff497727764cd510466a8e3b6577b SHA-256: 23bb2b8298c3577319ca77a00df70fec6e9652725df54bc87ffa46f7bc6d19d3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for free Robux, a common tactic for distributing malware. It includes multiple embedded URLs that likely lead to malicious downloads. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

Heuristics 4

Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE

Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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 https://netcdn.xyz/app/431946152/free-robux-roblox-hack-no-survey-no-human-verification-game-hack PDF link annotation
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-codes-list-pastebin_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-robux-hack_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-hacked-games-roblox_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/minecraft-noob-vs-pro-vs-hacker-vs-noob-roblox_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/free-tiktok-followers_GM835599320.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/add-robux-free_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/inf-jump-roblox-hack_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-biggest-hacks-ever-top-10_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/roblox-jailbreak-noclip-hack-download-2021_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/hacker-avatar-roblox_GM431946152.pdfIn PDF document text
- https://meerdanverzekeren.nl/wp-content/uploads/fsqm-files/does-cheat-engine-works-on-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
`stream_004_off000053c3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x53C3	27028 bytes
SHA-256: `b7ff722f6923a62f3e18cccd6c2c1582f68b032b4b7303ce94e345ec1ce6812b`
`font_01_sfnt_off0000924b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x924B	19400 bytes
SHA-256: `a00e0da828cad05fa5a840c2c3832ec95e97fce3d11ead4204cd21d829e6e72f`

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