PDF malware analysis — malicious · 8210042db5d672d2

MALICIOUS

PDF

49.4 KB Created: 2021-06-09 14:57:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 255e8bc7ba1f42716d848e87ad53afc4 SHA-1: 14174a44cbbb0f247d895e3bf68b90a123f9fc35 SHA-256: 8210042db5d672d27c522055c9b0f0ca890af8edd69a2f14bc09abd8b3d44780

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, many of which are SEO-optimized PDF files related to game cheats and free in-game currency. The document body, though partially corrupted, contains a URL pointing to 'free-robux-without-human-verification-and-password-game-hack', indicating a lure for potentially unwanted or malicious downloads. The presence of a PDF URI heuristic and a large number of external links suggests a link farm or redirection strategy to host malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9846

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.tw/app/431946152/free-robux-without-human-verification-and-password-game-hack PDF link annotation
- https://gigbagwinkel.nl/images/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
- https://gigbagwinkel.nl/images/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/ore-tycoon-2-cheats-roblox_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/coin-master-gifts_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/coin-master-link-app_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
- https://gigbagwinkel.nl/images/robux-generator-2021_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
- https://gigbagwinkel.nl/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://gigbagwinkel.nl/images/coin-master-invite-friends-free-spins_GM406889139.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
`stream_004_off0000534e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x534E	25244 bytes
SHA-256: `c21cfa01dc177264f0d0f79de7e93a228b0676182728f98393ad08d84cf2cbf8`
`font_01_sfnt_off00008d9a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D9A	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off00009a41.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A41	19716 bytes
SHA-256: `695e945482e6b47a9c11dcda27932507843d8fa7477578a33df941b6e2c7c5c4`

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