PDF malware analysis — malicious · fd2d71820afc9ba0

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 05:44:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 9f2eb61a0b0ca2a4c44032b0a9c89332 SHA-1: a9fad808b325e8e81d7c290c422828875a1eaf5b SHA-256: fd2d71820afc9ba05cb268d0488cfde780185dd9f2a5247df21f4cf11794e6d6

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 0.9980

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 http://netcdn.co/app/431946152/free-robux-guy-game-hack PDF link annotation
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/download-roblox-for-free-on-ps4_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/free-roblox-accounts-2021-may_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-builders-club_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/earn-robux_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/how-to-geht-free-robux-no-human_GM431946152.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
- https://www.waymedicalsupplies.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account_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_off0000305d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x305D	22596 bytes
SHA-256: `3379e5301a253538789743e485c6ec53ad6fcf0357302c546acba6480f4d5e9d`
`font_01_sfnt_off000062ac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62AC	18896 bytes
SHA-256: `c53cecddfd08a955e7cf7a941b1a139fde5f00b7913db567578758cd57fe56da`

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