PDF malware analysis — malicious · 3e76759e608d05b4

MALICIOUS

PDF

47.0 KB Created: 2021-05-19 22:02:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 5e2736e68807ba4a4286674eb507c220 SHA-1: 86886084d7a8d74c34bb6cfdd273987e2291a8e3 SHA-256: 3e76759e608d05b4d29ad2eedd13f722663c7c3a839bd50781463273a8f2ee37

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links to external PDF files, many of which appear to be SEO spam related to games and hacks. The ML classifier flagged this PDF as malicious with a high score. The presence of external URIs and a link farm suggests a phishing or content-luring attempt, likely to distribute further malicious content or engage in SEO manipulation.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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-link-spin-game-hack PDF link annotation
- http://bvmg.nl/images/pokemon-lets-go-free_GM1094591345.pdfIn PDF document text
- http://bvmg.nl/images/can-you-give-me-robux_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
- http://bvmg.nl/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/coin-master-2021_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
- http://bvmg.nl/images/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- http://bvmg.nl/images/how-to-get-free-robux-2021-easy_GM431946152.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_off00004dca.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DCA	25648 bytes
SHA-256: `3842c12525749888e0c7cebd8f6809145b19adffe6cd06216a0e4f16d54fc3b0`
`font_01_sfnt_off00008962.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8962	3560 bytes
SHA-256: `c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93`
`font_02_sfnt_off000095e8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95E8	18056 bytes
SHA-256: `73446086b7970e4c311ea7edd0e96fe93bb69e7a29ec1c6c70349cef1a9e8050`

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