PDF malware analysis — malicious · cdd79ca92a92e7dd

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 19:12:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 8eba80ea746e2d3ed57bf90129d6c8d6 SHA-1: 104327f926a5796b73b7b26b7566365eb85433ee SHA-256: cdd79ca92a92e7ddc8a083d5f651deefda75a06458fda9b1067dade2302b79f5

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 0.9980

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 http://netcdn.tw/app/406889139/coin-master-hack-version-download-game-hack PDF link annotation
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-join-game-hack_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/free-2021-promo-codes-roblox_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/military-simulator-roblox-hack_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-robux-offers_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-accsesoiri-roblox_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-obc-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/easy-robux_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-robux-real-working_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/how-to-hack-diamonds-roblox-murder-mystery-2_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-preschool-free_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/how-to-hack-accoutns-on-roblox_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/coin-master-gold-cards-free_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
`stream_002_off00003236.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3236	22776 bytes
SHA-256: `87ab171944f646c1c1d552aebd6b445522f3b5296414aa3326205c02992b2a53`
`font_01_sfnt_off0000653b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x653B	18720 bytes
SHA-256: `210f7e42d7e26a7b50374b7f571f544979918233c48f1eb5c911e85e040a31e1`

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