PDF malware analysis — malicious · 954a84f440cd00f9

MALICIOUS

PDF

33.9 KB Created: 2021-07-08 09:14:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24

MD5: c1619389bcdfc803a66cdd11c85c1312 SHA-1: 0df6c2e0c1da6dd52fee3edbc20daf85c31b0a33 SHA-256: 954a84f440cd00f9969e706028efa6a0f657e895ac4963fc91f4cb8678c5a147

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document employs a lure of game hacks and free items to entice users. It contains multiple links to redirector infrastructure, which in turn host further malicious PDF files. The primary redirector URL identified is http://netcdn.tw/app/406889139/how-many-levels-in-coin-master-game-hack. The document's structure and embedded links suggest a phishing or scam campaign aimed at tricking users into downloading further malware or visiting malicious sites.

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/how-many-levels-in-coin-master-game-hack In PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/robloxgamehackonline-verification-problem_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/how-to-get-free-robux-no-joke-2021_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-prison-live-v20-infinite-ammo-hack-2021_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/give-me-free-robux_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/complete-offers-for-robux_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-robux-easy_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/wurst-115_GM479516143.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/roblox-hacking-class_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/robux-and-tix-hack-no-download_GM431946152.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/pokemon-go-free-2021-tier-list_GM1094591345.pdfIn PDF document text
- http://www.sovtigaz.ru/f/files/pokemon-go-for-free-download_GM1094591345.pdfIn PDF document text
- https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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_off00002ea7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EA7	22740 bytes
SHA-256: `a3d1d3658c8aece2d8ef2757d29c9ba2cca6e8050d913e7fcab1e8ff008e7cad`
`font_01_sfnt_off0000619e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x619E	18368 bytes
SHA-256: `22264d53a734c88e48cd42ac2c4848b2a5f5338df1809d203b88e575c2dc7f24`

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