PDF malware analysis — malicious · 14ed1982b3510d37

MALICIOUS

PDF

40.6 KB Created: 2021-06-23 03:47:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12

MD5: d25d83f0209d463b8c3f86a57f69a030 SHA-1: 4dd6367b267194d35eca8648cebb6263a61ee78e SHA-256: 14ed1982b3510d371975f9e29c24a0bfe3487f997a908740a6fc461d5f0bb43b

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links to external resources, including a redirector URL and a large number of other PDF files, all related to game hacks and cheats. The document body and heuristics indicate a lure for users to click these links, likely to download malware or engage in other malicious activities. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9988

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.co/app/431946152/roblox-money-hack-2021-free-download-game-hack In PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/is-there-a-possible-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-studio-free-online_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/weapon-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-join-someones-game-in-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/cheat-engine-kill-al-script-roblox_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/are-there-any-actual-robux-cheats-reddit_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-lua-scripts-for-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/hacker-for-roblox-https-meganz-nfpdms5k-q8b-1b9y_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-quiz_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-cheat-menu_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_off00004273.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4273	23240 bytes
SHA-256: `1a28ad9cc74287ed42149ab574d6be76be15bd770af2b0d050e1cb1e7ada336f`
`font_01_sfnt_off000076dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76DC	20104 bytes
SHA-256: `6bac0339525f0e3ec6222d926997770a92482ae180c4f36048ac390c3124efd7`

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