PDF malware analysis — malicious · 42cd09bd8ab8de13

MALICIOUS

PDF

32.7 KB Created: 2021-07-20 12:06:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26

MD5: 427ffcdcc60bb9184e58aec19cd107f3 SHA-1: cd12341de6319d6365dbdeff19e44f2f2324ad08 SHA-256: 42cd09bd8ab8de13e71072e1070bc7dcbfa36847b01d8277b8c7123f9e50bdcd

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a malicious domain, masquerading as a "free generator" or "game hack" to entice users. The document body explicitly mentions "How To Get Minecraft For Free" and "CLICK HERE TO ACCESS MINECRAFT GENERATOR", reinforcing the lure. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at driving traffic to potentially malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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/how-to-get-minecraft-for-free-game-hack In PDF document text
- https://magistrinfo.ru/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://magistrinfo.ru/images/free-views-on-tiktok_GM835599320.pdfIn PDF document text
- https://magistrinfo.ru/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
- https://magistrinfo.ru/images/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
- https://magistrinfo.ru/images/free-tiktok-bots_GM835599320.pdfIn PDF document text
- https://magistrinfo.ru/images/free-robux-link_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_off00002cf0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2CF0	22436 bytes
SHA-256: `18f6b4fc7124fe43c7b59f43a736cbe18b4a9bc653792f46c77f73be588f3a9e`
`font_01_sfnt_off00005ef0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EF0	17872 bytes
SHA-256: `6fa695b9296659f7eb743de2dcac64eb87e125e0d99966acf8bb7a2f268f66d6`

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