PDF malware analysis — malicious · 2a211dcf02bf132a

MALICIOUS

PDF

35.7 KB Created: 2021-06-26 04:02:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 508af1de2dc8b5f8c78d0ab764590180 SHA-1: 8fc92c2c5be5870b056aa5db5b76c9ac4e934752 SHA-256: 2a211dcf02bf132ae912973f0cbf42354991fe179202455ae9b9a7f85ddbcf57

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a redirector URL that is associated with malicious activity, specifically luring users with 'game hack' content. The document body and embedded URLs suggest a phishing or scam attempt, likely to deliver a second-stage payload or lead users to a credential harvesting page. No scripts were extracted, but the PDF structure and embedded links are indicative of malicious intent.

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/who-to-email-when-your-roblox-account-is-hacked-game-hack In PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/cheat-codes-for-roblox-mad-city-cash_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/dis666-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/i-need-robux_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-links-coin-master_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/fnaf-hack-script-roblox_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/roblox-cheat-engine-speed-hack-mac_GM431946152.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-hack-here_GM406889139.pdfIn PDF document text
- https://www.lanumedispa.ie/uploaded_files/userfiles/files/can-i-hack-coin-master-with-lucky-patcher_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_off000032ca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32CA	22208 bytes
SHA-256: `0907d46ba72758f747c4e2407a725aa9956ea37904c59499bf67e11ec26ea176`
`font_01_sfnt_off00006409.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6409	19980 bytes
SHA-256: `593d842d36fd3bdd4a95bf15b249b3ff8771d1b76942777f0b33d6d97a576060`

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