PDF malware analysis — malicious · 1936a8259cc0f67f

MALICIOUS

PDF

48.8 KB Created: 2021-05-15 04:34:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 56d269345a50c214c11a1d0495b495e0 SHA-1: 95623eab2af6972b2d87bca3a5d201984dca82db SHA-256: 1936a8259cc0f67fffb22f23ba9afa68c45f1c146b0b9d9f702b8a0df903d336

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8642

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/406889139/coin-master-60-spins-game-hack PDF link annotation
- http://alsworld.com/uploaded_files/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/coin-master-hack-apk-with-fb-login_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/minecraft-tools_GM479516143.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/coin-master-facebook-page_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/roblox-printables-free_GM431946152.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/coin-master-event-hack_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/roblox-free-vip-server_GM431946152.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/coin-master-card-link-free_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/www-coinmaster_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://alsworld.com/uploaded_files/userfiles/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b23.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B23	25040 bytes
SHA-256: `3e9f049c6862ef71c45ed5af2e93a4ac8eea4d12be2457016cf1e37fe3514f60`
`font_01_sfnt_off00008522.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8522	4028 bytes
SHA-256: `a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91`
`font_02_sfnt_off000092c3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92C3	2788 bytes
SHA-256: `6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530`
`font_03_sfnt_off00009cb3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9CB3	18064 bytes
SHA-256: `2be77c99efee58e2312fff3056c37fdd8f65a42446f1ebfd65b900f20d31ca7c`

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