PDF malware analysis — malicious · 2801ca3bc1561c11

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 13:13:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 5be61b8895ac945d12f6745a2ea401bb SHA-1: aa1153db513e64420e4dc11675c181d0c3a6c890 SHA-256: 2801ca3bc1561c114a89926a7684d3d12e8cb9961c33bb3af678a76599660e37

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/406889139/download-hack-coin-master-apk-game-hack PDF link annotation
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/fb-coin-master_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/robux-hack-computer_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-membership-codes-roblox_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/roblox-brightness-hack_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-robux-in-5-seconds_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/walking-through-hack-roblox-v8_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/1x1x1x1x-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
- https://www.dunnagebags4u.com/uploaded_files/userfiles/files/free-roblox-car_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_off00003377.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3377	22560 bytes
SHA-256: `ce2aa2b0ddc62e13e6b21acbe10ceb51dba9c50651c74a859278ac67dd139b7b`
`font_01_sfnt_off000065cc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65CC	18760 bytes
SHA-256: `8333c8018b13bf52e37c7708f338d48787d19e9e4dbaf49a8c1071265ea55d63`

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