PDF malware analysis — malicious · 2f297bae5fb4a50d

MALICIOUS

PDF

33.7 KB Created: 2021-07-19 21:05:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24

MD5: cb22c9f67c49a9fdf3f74abe79c963db SHA-1: a1768d1602c3c6c24c6165a76044a8e7a0a86480 SHA-256: 2f297bae5fb4a50d70c74b693c12e234f89f762613fad719b613e5b24433bb4f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on them by promising free in-game currency or hacks. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.9946

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.tw/app/431946152/free-robux-2021-game-hack In PDF document text
- http://italianconnectionsleaford.co.uk/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/minecraft-free-online_GM479516143.pdfIn PDF document text
- http://italianconnectionsleaford.co.uk/images/how-to-get-free-coins-on-tiktok_GM835599320.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_off00002e06.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E06	22616 bytes
SHA-256: `b6539213ed76e2831475d155ac2377aeedcc7e43ba0880c08fedc8f354da680c`
`font_01_sfnt_off0000608b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x608B	18600 bytes
SHA-256: `a2c5ceeb34a0fdda65f6d16b67831e7179df071a1f7dc46648d6724acc442c88`

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