PDF malware analysis — malicious · d723161f99becc72

MALICIOUS

PDF

34.2 KB Created: 2021-06-18 11:54:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: e297de0d0b2e7023ebd742677fad6a99 SHA-1: 0f77130e4af20870d2635f95b4132d6cf7e1c874 SHA-256: d723161f99becc72d0dea97cc5d1dffff19a9cb467d7cc70a308d5864fe0e5d3

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.co/app/431946152/my-roblox-group-got-hacked-game-hack PDF link annotation
- http://www.donjastubica.hr/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- https://www.donjastubica.hr/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.donjastubica.hr/files/roblox-install-free_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.donjastubica.hr/files/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/get-free-lives-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
- https://www.donjastubica.hr/files/without-pokemon-go-free-pokeballs_GM1094591345.pdfIn PDF document text
- http://www.donjastubica.hr/files/roblox-script-hacks_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
`font_00_sfnt_off00002d85.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D85	22084 bytes
SHA-256: `0c59dbb299315bc842190aeac4749cf6e6f03623f0f77c8f5e51c03587d5c89a`
`font_01_sfnt_off00005e94.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E94	19628 bytes
SHA-256: `58703410911b7abc73a2dc770731f9b43d149c6ff3e76319eaf9f25351063a25`

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