PDF malware analysis — malicious · b38cc0592ca9ba0e

MALICIOUS

PDF

47.9 KB Created: 2021-06-11 06:26:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: ef56bf70dc57dbb5821ff7d0316c51ba SHA-1: 5575a22bc1bdafbbff6997c635a9f0f8a5c5e82d SHA-256: b38cc0592ca9ba0ea7c526ecd1a397a4a454a83e2eb7013565f3d1b185ea4056

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document impersonates Paypal to lure users into downloading a Roblox hack. The primary malicious URL identified is https://netcdn.tw/app/431946152/roblox-hack-robux-gratis-2021-funcionando-game-hack, which is hosted on a domain unrelated to the impersonated brand. The document's content and heuristics strongly indicate a credential phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9871

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.tw/app/431946152/roblox-hack-robux-gratis-2021-funcionando-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.tw/app/431946152/roblox-hack-robux-gratis-2021-funcionando-game-hack PDF link annotation
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-november-2021-hacks_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-roblox-pastebin_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/tshirt-free-roblox-of-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/loot-box-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-hack-ios_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/play-roblox-hacked_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/como-hackear-dragon-ball-rage-roblox-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-mega-vip-roblox_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/da-hood-update-drum-gun-cheats-in-roblox_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-free-gold-chain_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-free-robu-without-free-robuxs-apps_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-no-surver_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-free-robux-giveaway-live_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-robux-hack-tutorial_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-lumber-tycoon-2-cheats-money_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/where-to-buy-roblox-clothes-for-free_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_off00005664.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5664	27824 bytes
SHA-256: `2790444628463878407bdacc5f33b190b88c989690b4e445b240ba7de3de7686`
`font_01_sfnt_off000095e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95E7	19288 bytes
SHA-256: `0bc72461718b0876db621281fa9ae9639af158b30c17ebba6a0417be222e4870`

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