PDF malware analysis — malicious · 44937ba6cd6aca26

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 12:34:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 9e101dac405650dfe8a62bcf8ca145e2 SHA-1: f5204144645733b5654368aec76bfa967568dea2 SHA-256: 44937ba6cd6aca268a19885b75d3d0eb06a024dd7297936759fde2e571543dca

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 0.9865

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 https://netcdn.online/app/431946152/free-roblox-followers-generator-2021-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/robloxhacks_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-links-coin-master_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-com_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spin-link_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-fly-hack_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_004_off000051e8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51E8	25432 bytes
SHA-256: `f4a197f7b8fd43f30e4dd86c844d90f694e0db4436ad298e8dedaac78759c79f`
`font_01_sfnt_off00008be4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BE4	18844 bytes
SHA-256: `227474e1735e5d7697922269f160fae01492720ac9d8b6c0a7f07948ae0c6b44`

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