PDF malware analysis — malicious · c9a4da5b7fe41284

MALICIOUS

PDF

42.5 KB Created: 2021-05-10 15:05:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 24073205aaadd6a9865ec2d6430ab95a SHA-1: 2e7c247560ab579dddd05f8adbff513082b70bbd SHA-256: c9a4da5b7fe412847e15f1747d6f729dab751807538ccd1f606fa563b70c01a3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is identified as malicious by an ML classifier and contains multiple embedded URLs pointing to game-related hacks and cheats. The document body explicitly mentions "Roblox Hack App" and "CLICK HERE TO ACCESS ROBLOX GENERATOR", indicating a lure to download potentially malicious software. The presence of a "password-protected archive handoff" heuristic suggests the document may be designed to bypass security controls by encrypting a payload, which is then likely downloaded or executed via the embedded links.

Machine Learning

Nyx PDF Classifier malicious score 0.9978

Heuristics 4

Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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/roblox-hack-app-game-hack PDF link annotation
- https://www.tw-storage.com.tw/upload/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/game-hunters-coin-master_GM406889139.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
- https://www.tw-storage.com.tw/upload/files/coin-master-hack-spins-ios_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
`font_00_sfnt_off00004319.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4319	28916 bytes
SHA-256: `e909f6ff1bc244dabe091e7b37130b34d9dbfa9bd7362b8af02647e3329fd477`
`font_01_sfnt_off000083ba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83BA	18356 bytes
SHA-256: `7cdc4109e76722f5b523df4cd1b295e2212ddbe91aca110ba626f8c95e058f26`

Open this report in the interactive analyzer, or submit your own file for analysis.