PDF malware analysis — malicious · 98612f1cbf0d1559

MALICIOUS

PDF

45.6 KB Created: 2021-05-12 10:41:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: 589ed0d34b94bbd4a1c1c3ea0e211c47 SHA-1: 83a830931776e02860db2fbb11d6c17ad023b0fe SHA-256: 98612f1cbf0d1559bad16826a8eba0b4a2ea8b717e3824a4903a043dbc9315c2

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a 'free generator / game hack' lure, which redirects to malicious infrastructure. The document body, though partially corrupted, contains references to the same malicious URL. This indicates a phishing attempt to trick users into visiting a potentially harmful site, likely to download further malware or engage in credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/431946152/get-roblox-for-free-game-hack In PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/robux-free-robux_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-minecraft-generator_GM479516143.pdfIn PDF document text
- http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-hack-generator_GM431946152.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
`font_00_sfnt_off000048a5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48A5	24228 bytes
SHA-256: `f14d4e8316c7a569c8fcd27875bd75c12a675fb1bb3cde65c2694844c3337c52`
`font_01_sfnt_off00008017.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8017	6636 bytes
SHA-256: `62075f0fe13502d46afb6e55e83d440c29ef4988399537df1f86e7653ce3b744`
`font_02_sfnt_off00009023.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9023	18052 bytes
SHA-256: `dd3a1ec16e19984c5f5961afb77b5f3a51b54be2280254a9a550aaf1fb941b00`

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