PDF malware analysis — malicious · 5fe1179e85c9bd05

MALICIOUS

PDF

35.2 KB Created: 2021-07-09 08:47:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: d39aef51b24ea2051f3f21f199fc0d4c SHA-1: c0caea195247ac973924bbf971db939813275225 SHA-256: 5fe1179e85c9bd05d033df07031ef9cc8c0e131cf9ebdbcd7104cefadabbc07a

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/431946152/hack-for-roblox-a-bizzare-day-game-hack PDF link annotation
- https://klp.com.tr/inc/uploads/userfiles/files/free-roblox-app_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-samurai-simulator-hack_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/auto-jump-roblox-cheat_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-774-hack_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-free-virtual-item_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/boku-no-roblox-hack-script-buy_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/wurst-hacked-client_GM479516143.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/level-coin_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/robux-hacks-no-survey-or-verification_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/zoo-tycoon-cheat-codes-roblox_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_off00003223.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3223	22316 bytes
SHA-256: `91105d81c37b216b9fad825cdcb75b45aa2b8432d7e9f278031c2917addfe867`
`font_01_sfnt_off000063cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63CB	19368 bytes
SHA-256: `b78a949a496f188f6a5bd30ff5cdb61a8ea34a7db8ebeafe264eb66e53918137`

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