PDF malware analysis — malicious · ea2fd6271657b846

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 01:57:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 8f505c5bd4d857c2d12028f56acd810d SHA-1: c9d5454cc70fe8767fc502a360b94998b477a6d5 SHA-256: ea2fd6271657b846cddeaa5c0db8db6f90cd875e2e4dc8896df83937ebc2e403

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that are advertised as generators or hacks for popular games. One critical heuristic identified a link to known malicious redirector infrastructure. The document body and embedded URLs suggest a lure for downloading potentially unwanted or malicious software disguised as game cheats. No scripts were extracted from this sample.

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-hack-executor-level-7-download-game-hack In PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-minecraft-client_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/fake-robux-codes_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/roblox-free-body_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-december_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/how-to-sue-roblox_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/roblox-hack-generator-no-survey-no-download_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/roblox-c9m_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-daily-free-spins_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_off00002f7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F7C	22168 bytes
SHA-256: `da7978d25a22f6b696dae5f06fb764844d47d2983f1e5abeb7f6c4dd8c1029a1`
`font_01_sfnt_off000060b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60B2	19576 bytes
SHA-256: `77e89c9891d553738627a5d908bfcb74f0cd312b7b6dbf502b01ef161744bde7`

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