PDF malware analysis — malicious · 9268f3b74abc2a8d

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 20:30:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 8c02f4c966f0f87bbfffa250e5f7a8ac SHA-1: d2e25ef516e41e0784dba99533d37eac72b66960 SHA-256: 9268f3b74abc2a8d2d5aebc1e4bad71d524b2d2e0ffb605869a86f1f449e6c6f

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-free-spins-cheat-deutsch-game-hack PDF link annotation
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/roblox-city-free_GM431946152.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/coin-master-hack-ios-app_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/tiktok-free-views-hack_GM835599320.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/hacks-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/simplysarc_GM479516143.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/roblox-jailbreak-free-money-march-2021_GM431946152.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/robloxcom-free-kkk-k-k-k-k-m-k-l_GM431946152.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-minecraft-wallpaper_GM479516143.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_off000031d7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x31D7	23200 bytes
SHA-256: `2166fc5db2b39b26cfb9d39ca22ab0c5532202d7afdda93d2874811ad1e1c742`
`font_01_sfnt_off00006623.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6623	18648 bytes
SHA-256: `0f75c991103dc95817f01e28baa51d3b59767776a8e5ec3aab022190e4357f66`

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