PDF malware analysis — malicious · 09c8f7849cd195cc

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 19:10:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25

MD5: 40523ccce3b136ba3ae04d3c1530d754 SHA-1: d5c2ebec71ccb2538df16ef07bbcc16a707c228c SHA-256: 09c8f7849cd195ccf3ac9a02c74bfbf250d8831146f2fce6081fee112667d954

200 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising free game hacks and generators. The heuristic firings indicate that the PDF is designed to lure users into clicking these links, likely to download further malware or engage in other malicious activities. The presence of 'cmds-in-roblox_GM431946152.pdf' in the document text suggests a potential attempt to exploit interest in game-related exploits.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND

Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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/freecoins-game-hack In PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/roblox-jailbreak-hacks-for-mac-2021_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/easy-roblox-today_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/roblox-password-hacker_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/v3rmillion-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/free-cmds-in-roblox_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/how-to-get-free-redeem-roblox-card-for-robux_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/coin-master-official-page_GM406889139.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/how-to-use-undetected-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/instancevmp-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/how-to-get-faces-that-cost-robux-in-roblox-free_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/free-robux-codes-october-2021_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/free-robux-generator-without-survey-or-human-verification_GM431946152.pdfIn PDF document text
- https://www.translavie.com/ckfinder/userfiles/files/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
- https://www.translavie.com/ckIn macro / runtime command snippet
- 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_off00003064.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3064	22880 bytes
SHA-256: `9025639d027414b32d51b374d890e7e9444d8d34536a5d12ca7895e5d42faea8`
`font_01_sfnt_off000063bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63BC	17896 bytes
SHA-256: `95b27e0fe0f8d09f21308dfe7f1e0da3cbc5e6d7e802a0f52430e90404511a42`

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