PDF malware analysis — malicious · fff7c2ecf4168dd7

MALICIOUS

PDF

34.3 KB Created: 2021-07-19 08:20:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25

MD5: fdbe7676f22085633da1e8eb8632a84f SHA-1: 372c3b42c8d085b4d730fdb4f242be09e4716e8d SHA-256: fff7c2ecf4168dd7c8b1ea7e1332d380cf349f38aa3ff5ecc01b85dbfab9435a

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a prominent call-to-action to download a 'game hack' or 'generator'. Analysis indicates these links lead to known malicious redirectors, likely serving as a lure for users seeking cheats or free in-game items. The document's structure and content strongly suggest a phishing or scam attempt, aiming to redirect users to potentially harmful websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9955

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 http://netcdn.tw/app/479516143/minecraft-windows-10-edition-unlock-full-game-free-game-hack In PDF document text
- https://vgsiemens.nl/images/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://vgsiemens.nl/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
- https://vgsiemens.nl/images/free-tiktok-fans_GM835599320.pdfIn PDF document text
- https://vgsiemens.nl/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
- https://vgsiemens.nl/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
- https://vgsiemens.nl/images/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://vgsiemens.nl/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://vgsiemens.nl/images/minecraft-games-free-download_GM479516143.pdfIn PDF document text
- https://vgsiemens.nl/images/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
- https://vgsiemens.nl/images/robux-hack-2021_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_off00002ded.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2DED	22836 bytes
SHA-256: `df64728ddd012792523b66a5583a039bff38ccefa0beaf69ee536496d35a1774`
`font_01_sfnt_off000060db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60DB	19356 bytes
SHA-256: `614bd227759a0900337b007d73888638d95591a994554acf55d00d578ccef1d0`

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