PDF malware analysis — malicious · 325febaca5a848d1

MALICIOUS

PDF

44.9 KB Created: 2021-05-17 19:20:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 14b172151ff91613052d09e8fbbc95f1 SHA-1: 50a00cb261c889d78ff1f1d7212dedf021c92d7b SHA-256: 325febaca5a848d1842c1747f71f97e0fd83632b9d8ec7c70f5bbc5da1ec5d58

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a large number of external links, many of which point to other PDF files hosted on a similar domain, suggesting a link farm designed to attract users searching for game cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of a download button lure further supports a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

Heuristics 4

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
External URI info PDF_URI

PDF contains an external URL action
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/406889139/coin-master-free-spins-hack-apk-download-game-hack PDF link annotation
- https://wandersuechtig.de/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
- https://wandersuechtig.de/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
- https://wandersuechtig.de/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
- https://wandersuechtig.de/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://wandersuechtig.de/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
- https://wandersuechtig.de/images/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://wandersuechtig.de/images/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
- https://wandersuechtig.de/images/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://wandersuechtig.de/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
- https://wandersuechtig.de/images/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://wandersuechtig.de/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- https://wandersuechtig.de/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/coin-master-update-2021_GM406889139.pdfIn PDF document text
- https://wandersuechtig.de/images/free-minecraft-client_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004aaf.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AAF	24616 bytes
SHA-256: `35539466d69126e0cecd31eb935a3685f9c9a424d9b77282c21751127a754ba0`
`font_01_sfnt_off00008225.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8225	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008bd7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BD7	18636 bytes
SHA-256: `5481d0302ec3c0ba5c2d586dcd50dd6b5df695462c9cc4a17d5c66f6ba577068`

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