PDF malware analysis — malicious · baa3af989943b4be

MALICIOUS

PDF

33.5 KB Created: 2021-07-09 01:34:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 535fc578b5d2c494fea2a0f3e7f1023b SHA-1: 40c495dae9cfbd2d92b95565cf74cb6dd44166eb SHA-256: baa3af989943b4be4355147ccb3ae4fdb114187ec807e37c2929b5a0128e3113

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a lure for free game hacks and coins, directing users to a known malicious redirector. The embedded URL, http://netcdn.tw/app/406889139/free-spins-and-coins-for-coin-master-game-hack, is associated with malicious redirector infrastructure. The document's content and heuristics strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/free-spins-and-coins-for-coin-master-game-hack In PDF document text
- https://www.alarqam.ae/userfiles/files/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/what-games-give-you-robux_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/coin-master-ios-hack_GM406889139.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/free-robux-scam_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/free-cool-clothing-on-roblox_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/heists-roblox-cheat_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/web-roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/free-roblox-passwords_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/hacking-code-roblox_GM431946152.pdfIn PDF document text
- https://www.alarqam.ae/userfiles/files/injector-de-hacks-para-roblox_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_off00002ddc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2DDC	22420 bytes
SHA-256: `b60769070a0a065d3b3700638d5568cd9a8c196a8aea763ac3f7a77dec5985b0`
`font_01_sfnt_off00006016.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6016	18348 bytes
SHA-256: `e3514f5c13c59f74fe131b320bb4a7a21799b0fccf5b53c141d50f68870e844d`

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