PDF malware analysis — malicious · ac00022a2cec9f55

MALICIOUS

PDF

35.5 KB Created: 2021-06-29 06:52:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 31aa160477b8b7ccb9518e38d3ccbf74 SHA-1: 7454c1213bf0876fdea54369904db03a046df666 SHA-256: ac00022a2cec9f55833db084bf4ad5cae5ccd376f73f151b12e009e490463a1a

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links, including one identified as a malicious redirector. The primary lure appears to be related to game hacks and free items for popular games like Roblox and Minecraft. The document body and heuristics indicate a redirection to potentially malicious infrastructure, likely to deliver a secondary payload or phish for credentials.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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-polo-ralph-lauren-free-shirt-game-hack In PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/https-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-giveaway-january-2021-9_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/robux-no-survey_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-hack-scripts-for-ipad_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/hacker-tool-for-roblox-download_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/codes-for-adopt-me-roblox-for-free-money-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-hack-roblox-using-command-prompt_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/hack-de-una-espada-ra-roblox_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-the-best-cheat-engine-hack_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-clothes-free-on-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_off00003267.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3267	22456 bytes
SHA-256: `1f3751638573d4a97a551be916dd9e0166f060fb1fb433cca2e2600a5112fe72`
`font_01_sfnt_off00006488.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6488	19512 bytes
SHA-256: `aef22af03c13a6d8ffb43fb59a38cc79f6e4b34e3876f0bb6f30829212d3c978`

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