PDF malware analysis — malicious · a2cd6a65e1a2f7ae

MALICIOUS

PDF

35.3 KB Created: 2021-06-30 20:49:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: eee6f36b16668d30f775731d225477c3 SHA-1: 09b283024c745b48bab63b9a6969285ab5d22a69 SHA-256: a2cd6a65e1a2f7ae4a37c0461be321292450d91f8402a09908b3b5810602e5e4

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one to a known malicious redirector, designed to lure users into clicking on promises of free game currency or hacks. The document body and heuristics indicate a scam aimed at driving traffic to potentially malicious sites. While no scripts were explicitly extracted, the nature of the links and the lure suggest a phishing or scamming attempt.

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.
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-free-group-funds-game-hack In PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-get-free-robux-actually-2021_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-candy-script-roblox_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-codes-for-roblox-nfl-2_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-hack-money-on-roblox-games_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-mcdonald-tycoon-cheat_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/butterfly-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/how-to-hack-a-player-in-roblox_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/hacking-my-boyfriends-roblox-yammy_GM431946152.pdfIn PDF document text
- 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_off000032d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32D6	22392 bytes
SHA-256: `001b565f6053e1033d365b1649fb8d0a55ea7a55f19cbcac3efdd8af67e67539`
`font_01_sfnt_off0000649f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x649F	19140 bytes
SHA-256: `618f2573f4b840694faec74bb2743463a169c4b92d0afaa7eddcce5ce4d6602f`

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