PDF malware analysis — malicious · 3635794e0cbc557c

MALICIOUS

PDF

46.4 KB Created: 2021-05-21 02:14:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 7e1014849dea3649e7162d124cb009f8 SHA-1: 574750fd715d606bc7058a3fd1ca5fa2ed0415fd SHA-256: 3635794e0cbc557c3d8e2bf86282c8eb0133f505cbcc90005d8060b054c893cf

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as "free generator" or "game hack" lures. The document body explicitly prompts users to "CLICK HERE TO ACCESS MINECRAFT GENERATOR", reinforcing the social engineering aspect. While no scripts were extracted, the embedded URLs and heuristic firings strongly indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.7710

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/479516143/free-minecraft-svg-cutting-files-game-hack In PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/get-me-free-robux_GM431946152.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
- https://elerning.ubkman1lampungtimur.com/__statics/gudangsoal/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off000035cc.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x35CC	24180 bytes
SHA-256: `93ed9ace9819f69650bd8e21ceda58bae7f3663e4a7b76e508165f22fbd3e5bc`
`font_01_sfnt_off00006cb6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CB6	7936 bytes
SHA-256: `218d53b68bdddb064f6fba4be822d5b3725ed1cef1a3b42796a8dd99c4a62f4e`
`font_02_sfnt_off000085df.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85DF	4232 bytes
SHA-256: `ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5`
`font_03_sfnt_off0000946b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x946B	18184 bytes
SHA-256: `d8adc23434b6d0e05f295f09c84840afdc38f50d3441e35b803418cfc3e40aac`

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