PDF malware analysis — malicious · c5a837fd3b5c7062

MALICIOUS

PDF

35.7 KB Created: 2021-06-25 20:09:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: f910afc1d87b2a5f0021cb4fdc5728e6 SHA-1: a17e41f8f5be6c3f987be1136ed5374632e20cf2 SHA-256: c5a837fd3b5c7062f8fef97b1f7a7484ca773a595f856abb513a8c9be3e8b0d3

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a document body that advertises game hacks and generators, strongly suggesting a lure for users to download potentially malicious files. The ML classifier also flagged this PDF with high confidence. The presence of multiple URLs related to game exploits and hacks indicates a phishing or scam attempt.

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/roblox-money-hack-mad-city-2021-safe-game-hack PDF link annotation
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/robux-generator-no-survey_GM431946152.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-hack-deathrun-2-on-roblox_GM431946152.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-coin-hack_GM406889139.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/roblox-person_GM431946152.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/overhol-roblox-free-shop-2021_GM431946152.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/free-minecraft-website_GM479516143.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/roblox-vehicle-simulator-money-hack-2021_GM431946152.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/minecraft-free_GM479516143.pdfIn PDF document text
- http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
- http://carpetbcfyarn.com/uploaded_files/userfiles/files/robux-2021_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_off00003264.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3264	22288 bytes
SHA-256: `97fd153d945e2810c6fd2a78ea114638fda21dc16b5bafbff973a3d985cddf97`
`font_01_sfnt_off00006406.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6406	19832 bytes
SHA-256: `cdce7e715f1255dac6ef278e20ce2d80541b2ea0b988da6989bf879998a9580f`

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