PDF malware analysis — malicious · 7bc68e4c6229b88a

MALICIOUS

PDF

45.3 KB Created: 2021-06-09 09:12:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 1f3fffd70ebe9e9a798cb22b0fc9f6c0 SHA-1: 56373c400ec4cd71c92c57ab4c66aceba94a03e6 SHA-256: 7bc68e4c6229b88ab3fb32dbe70f1587aed0950d28a8b318d0a0d4b66b43ed02

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA to lure users into clicking a malicious link, likely to download unwanted software or malware. The embedded URL points to a resource related to game hacks, reinforcing the lure. No scripts were extracted, but the presence of a fake CAPTCHA and a malicious URL strongly suggests a phishing or social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-baton-free-game-hack PDF link annotation
- http://korporacjaroma.pl/images/free-links-to-coin-master_GM406889139.pdfIn PDF document text
- http://korporacjaroma.pl/images/free-tiktok-bots_GM835599320.pdfIn PDF document text
- http://korporacjaroma.pl/images/robux-hack-survey_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/free-csgo-skins-roblox-id_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
- http://korporacjaroma.pl/images/roblox-pokemon-brick-bronze-hack-download_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/roblox-play-for-free-online-no-download_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
- http://korporacjaroma.pl/images/free-roblox-promo-codes-june-2021_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/free-robux-please_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/free-robux-apk_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/roblox-anti-afk-hack_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/strucid-aimbot_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/roblox-install-free_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://korporacjaroma.pl/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- http://korporacjaroma.pl/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
- http://korporacjaroma.pl/images/free-roblox-shirt-templet-download_GM431946152.pdfIn PDF document text
- https://korporacjaroma.pl/images/best-free-robux-sites_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_off00004eee.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4EEE	27904 bytes
SHA-256: `afb7fc75f9e6b04ed963ac52db1b488632901c9fb29ed5a83534d4bcac33b81e`
`font_01_sfnt_off00008e61.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E61	18280 bytes
SHA-256: `8079014aa863aeb4aa318b2236f8cd53c69433b538179c1dc94cd527607367cb`

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