PDF malware analysis — malicious · c934bdf5019ad56e

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 14:18:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 2f4aeb6b0e6476b7e668fd59d5b6bd22 SHA-1: a98e1bf74c8d439d8cee21a2c222b93a25e96367 SHA-256: c934bdf5019ad56e9e5c2bc960c22dc203b0a5bf3efcccb0a6af4f4e1ac6281c

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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.tw/app/406889139/static-moonactive-net-free-spins-game-hack PDF link annotation
- https://www.liputanbali.com/assets/CKImages/files/free-headless-head-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-codes-2021-march_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-skin-tutorial-roblox-strucid_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-minecraft-shaders_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/claim-free-robux_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/get-free-robux-today_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-anti-cheat-speed_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/cheats-for-jailbreak-on-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/microsoft-bing-robux_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-no-download-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-hack-t-shirt_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/tat-ca-cac-do-free-trong-roblox_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_off00003060.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3060	22012 bytes
SHA-256: `911d8d46868547a58eb93d534fffb46cdd16afb329611bb5926b6534957ec572`
`font_01_sfnt_off000060e1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60E1	18288 bytes
SHA-256: `f422a02d81899bade32c4e0036a2fd6befc986b55d68913fba82803fa281f610`

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