PDF malware analysis — malicious · 24c2a927d4a73c2d

MALICIOUS

PDF

34.9 KB Created: 2021-07-07 10:03:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: c7e51fe3a065d680e6edab4af62c3d2c SHA-1: 0618aff009de9e57bee6c2566587a1f5a57100cf SHA-256: 24c2a927d4a73c2d30ba9f52cd65ad4f5ebde9732b982e82222c7f48b04a9da0

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/free-pet-treats-coin-master-game-hack PDF link annotation
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/roblox-sign-in-free_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/free-robux-no-points_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/robloxfun-com-generator_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/free-robux-cards_GM431946152.pdfIn PDF document text
- https://elearning.mtsn5blitar.com/__statics/gudangsoal/files/oprewards-points-generator_GM431946152.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_off00003209.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3209	23164 bytes
SHA-256: `a27ecf5ae831092555c3b54e2ff0bd10da2183e57e83e209103a158a8a1ad49e`
`font_01_sfnt_off0000663c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x663C	18152 bytes
SHA-256: `7ca706d77441b4cfcfd45ab3bb2a523490faa314971aa69b7375735f921c6ad6`

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