PDF malware analysis — malicious · 31fcad6de178775b

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 03:23:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 1f0ac04dcfff290cae83da15445b5010 SHA-1: c03f7b0b72308619892acca86fe392701711b9b1 SHA-256: 31fcad6de178775b80e8a2d6f861f76fa870b294a402cd1d998dbd79ae88c7d4

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous external links, many of which are presented as 'SEO link farm' content related to game hacks and cheats. The ML classifier strongly indicated maliciousness, and the embedded URLs suggest a lure to download further content. The document's purpose appears to be to trick users into clicking malicious links under the guise of obtaining game advantages.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-hack-bad-behaviour-game-hack PDF link annotation
- http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/free-coin-spin_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/va-a-ser-hackeado-roblox-en-2021_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/roblox-shirts-for-free_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/what-are-the-effects-of-free-robux-scams_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/robux-claimer_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/arsenal-hacks-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/get-action-hair-free-roblox_GM431946152.pdfIn PDF document text
- http://www.samsoncc.com/uploaded_files/userfiles/files/robux-hack-generator-no-survey-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_off00002f87.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F87	22076 bytes
SHA-256: `dcb00d82b4c6d1461c0d3486ae00f8790277cb26916952c6f4e84f55fbb13ff2`
`font_01_sfnt_off0000606b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x606B	19368 bytes
SHA-256: `dcdc02a7d700a292815bfc4250434452e7ceff45414ca2b3833d85bc5fad40b6`

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