PDF malware analysis — malicious · bb02f98c0b1338b0

MALICIOUS

PDF

35.2 KB Created: 2021-07-01 18:08:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: a8b0bdc3657407adc05e9283192a6d4b SHA-1: 6d6429c68aac5fb9f512e8ceac03079e32bd75bc SHA-256: bb02f98c0b1338b0eb15acded96a3f728b2e5401d5a7bc446b401cc02beb75b9

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple embedded URLs and a prominent link within its body text, all related to game hacks and cheats, suggesting a lure for users to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure reinforces this assessment. The primary IOC is the URL http://netcdn.co/app/431946152/how-to-hack-in-roblox-jailbreak-noclip-game-hack, which likely hosts the secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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 http://netcdn.co/app/431946152/how-to-hack-in-roblox-jailbreak-noclip-game-hack PDF link annotation
- https://www.itc-nekretnine.hr/files/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- http://itc-nekretnine.hr/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
- http://itc-nekretnine.hr/files/free-cool-things-in-roblox-that-charecters-played_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- http://itc-nekretnine.hr/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/minecraft-login-free_GM479516143.pdfIn PDF document text
- http://itc-nekretnine.hr/files/coin-master-generator-hack_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/roblox-hack-revealed_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/roblox-download_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
`font_00_sfnt_off000032bb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32BB	22172 bytes
SHA-256: `a231a99d3b298401be8e6706501cf8d90c81fa3bd5b6eb86eb6683375ff23b3a`
`font_01_sfnt_off000063d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63D7	19284 bytes
SHA-256: `bb62a9006cc5e81dc85692498fd367cf090ee8992760ca4630cfd13d1b138014`

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