PDF malware analysis — malicious · 05f0308cc5637060

MALICIOUS

PDF

35.2 KB Created: 2021-06-26 05:55:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: f30c348a1760129c5961c46812b4231d SHA-1: b1e581a0b8a070e4ba1fec7c3a7fd8f9b28f9fcb SHA-256: 05f0308cc563706048542e92d9e19c73a77c368aa50389533d4ff609a31d05e4

200 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that appear to be related to game hacks and generators, specifically for Roblox. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body also contains references to 'cmds-in-roblox' and other game-related terms, reinforcing the lure. While no scripts were extracted, the presence of malicious redirectors and the lure suggest the document is intended to lead users to malicious sites, likely for malware distribution or phishing.

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.co/app/431946152/paginas-hack-para-conseguir-robux-game-hack In PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/can-my-childs-friend-hack-roblox-game_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/counter-blox-roblox-offensive-knife-hack_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/roblox-free-download-meepcity_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/minecraft-free-app_GM479516143.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/get-robux-free-no-survey-waiting_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/free-cmds-in-roblox_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/goose-roblox-hack_GM431946152.pdfIn macro / runtime command snippet
- http://uas.com.my/uploaded_files/userfiles/files/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/best-free-hacked-client_GM479516143.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/infinite-jump-roblox-jump-hack_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/nuevos-hacks-de-roblox_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/free-robux-generator-xyz_GM431946152.pdfIn PDF document text
- http://uas.com.my/uploaded_files/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
- http://uas.com.my/uploaded_fiIn macro / runtime command snippet
- https://www.roblox.com/.IIn 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_off00003205.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3205	22664 bytes
SHA-256: `a40effe1a9c4d1ca3e1b8eecb80403ed3f6926aad1edd06579738e5fb895fb3a`
`font_01_sfnt_off00006492.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6492	18996 bytes
SHA-256: `d34d983ac018d319180ebabd01d6a65866d08ad25a667ee83318f98c33a71c1a`

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