PDF malware analysis — malicious · fc96ddf23911ddc3

MALICIOUS

PDF

41.5 KB Created: 2021-04-24 11:43:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02

MD5: 354b5e192e1c7dc34223d8ac390a39cc SHA-1: df444176276f5f6ff7a65d414dd6a9d7483aee57 SHA-256: fc96ddf23911ddc3cdba213c324e3224f3495ed9a4ccb95f05dc66a1a760f5fd

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, masquerading as game hacks or generators to lure users. These redirectors, in turn, host further malicious PDF files, indicating a multi-stage download and redirection scheme. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

Nyx PDF Classifier malicious score 0.9941

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 https://netcdn.xyz/app/431946152/roblox-apocalypse-rising-vehicle-speed-hack-game-hack In PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/scp-2021-roblox-hacks.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/www-surveytool-com-free-robux.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/easy-hack-roblox.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/get-free-robux-legit.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/hack-de-roblox-para-conseguir-robux.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/ghost-simulator-roblox-hacks.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/free-game-online-to-download-roblox.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/how-to-hack-tower-of-hell-roblox.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/how-to-get-everything-free-on-roblox-2021-april.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/btools-hack-roblox-may-2021.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_off00004122.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4122	25880 bytes
SHA-256: `0f4a0aeb569069110abd74e8fbf5a344ee46797f6423f3142374cdef69c4183b`
`font_01_sfnt_off00007cfb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7CFB	19420 bytes
SHA-256: `eb2d24b4a454f1d551becb05efc55b0a534e9d484e038c08eba847a5a8970839`

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