PDF malware analysis — malicious · fe01ab616c899168

MALICIOUS

PDF

42.3 KB Created: 2021-05-13 17:33:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: a143f924fac8a0b4d810322a40e2b0fe SHA-1: c7d017f45d202470b07d7669bb2cb7c6bac1924c SHA-256: fe01ab616c89916803213d7b6aa4d2f20c160a8e198367fdbfbd0c71ced6043e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA to trick users into interacting with it, likely leading to the download of a second-stage payload from the embedded URL. The ML classifier strongly indicates maliciousness. The primary lure appears to be related to game hacks or cheats, a common social engineering tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/coin-master-club-hack-game-hack PDF link annotation
- http://gops.pruszczgdanski.pl/images/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-games-hack_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coinmasterfreespins_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-apk_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/roblox-www-com_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/roblox-hack-com_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/daily-coin-master-free-link_GM406889139.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_003_off00004ba1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BA1	24556 bytes
SHA-256: `5b2a7a87846b83e15bb29f94cbc012f281662a8161f69881e604d75c52db1aa7`
`font_01_sfnt_off000083b3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83B3	18088 bytes
SHA-256: `31499fb402872569a1906597877e8e0710c4d20c86bc1fc6962fc68df46ab383`

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