PDF malware analysis — malicious · cf1f43db01840ff1

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 12:49:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 94d4ad1419e10fa049fe86f625e3f02a SHA-1: 075ca629e95659925200e100cf0ca2de0f9f14e8 SHA-256: cf1f43db01840ff10947cf6d8b83857f2a1cef1f27a264086813951fd2a57723

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/coin-master-free-soins-game-hack PDF link annotation
- https://www.liputanbali.com/assets/CKImages/files/roblox-piano-sheet-hack_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/cara-ngembalikin-akun-roblox-yg-sudah-di-hack_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-get-pokecoins-in-pokemon-go-free_GM1094591345.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/proxo-cheat-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-hack-just-username_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/hack-sur-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/skin-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/minecraft-116-1-download_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-da-hood-hack_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/cheat-roblox-mad-paintball-2_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-without-any-verification_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_off000032b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32B7	22628 bytes
SHA-256: `65b65a9f90a7fb2aa9291ce3a99d27bb1cc72074ff2548b185e6c3ea43178eab`
`font_01_sfnt_off00006551.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6551	17996 bytes
SHA-256: `f4306de497449c0c0250de5deec7b8066a87c54091f9de3abe5accc399ec3ddb`

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