PDF malware analysis — malicious · 1988cc86237465c4

MALICIOUS

PDF

44.9 KB Created: 2021-05-12 22:35:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 3ba29fb0928284ce5a7b1793ffc7a55d SHA-1: 4f439061d1289ac6d8681805cede8efbfe4762ac SHA-256: 1988cc86237465c4e7679decb5ee5ec761ceaf5bd1dfd80a1a5fef91c0be51fe

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a heuristic firing for external URIs, indicating an attempt to redirect the user to a malicious website. The document body, though partially corrupted, suggests a lure related to game hacks, specifically Roblox. The presence of multiple similar URLs reinforces the malicious intent to drive traffic to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/431946152/worst-roblox-avatars-game-hack PDF link annotation
- https://www.linzgau-kjh.de/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/free-robux-youtube_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/roblox-com-www_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/minecraft-client-download_GM479516143.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/roblox-com-r_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/free-roblox-wings_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/coin-master-hack-link_GM406889139.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/getrobux-come_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/roblox-scam_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/free-robux-app_GM431946152.pdfIn PDF document text
- https://www.linzgau-kjh.de/images/free-robux-rewards_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004a62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A62	24820 bytes
SHA-256: `fda0190f97060a78fd7e26175ff74fe6c9b526b576a6024fc23a88f9b18af706`
`font_01_sfnt_off000082be.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82BE	2820 bytes
SHA-256: `d88f25cfe237a714f996150a11dd8a058f0f7c3e9d1ae91c17b46c10409b6c0b`
`font_02_sfnt_off00008c59.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C59	18428 bytes
SHA-256: `6ace7b5324c956ccbfd05766e740bf26877bde50396ed9b1cb0e10f1ff81d407`

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