PDF malware analysis — malicious · fe02e42d54279922

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 11:57:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 2cf9edae99b789661f89d6b6285bc006 SHA-1: 71a468bccbcb7fb4647e073530c2d6b10588947e SHA-256: fe02e42d54279922b68215360db9de042f7a3c3413dc4b7b6f73eee56f670c00

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. 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 5

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/406889139/free-spins-and-coins-for-coin-master-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-points_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-minecraft-account_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-hack-us_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_004_off00005135.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5135	25476 bytes
SHA-256: `e3fbcb25449249c34fa32752954b2d5a2e836456dff5d2f2cadcedb22b2201fd`
`font_01_sfnt_off00008aba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ABA	18060 bytes
SHA-256: `d4954d2d00bde9f6a1061857a61d2c62c1ae360f44744af150ee923481526d51`

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