PDF malware analysis — malicious · 3bc186df6627e883

MALICIOUS

PDF

35.5 KB Created: 2021-06-19 01:52:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 4e9f10ba81d35da75ebd7bc0070ccc52 SHA-1: 1c0e635ade888e7ef15df31972df35da86aeff57 SHA-256: 3bc186df6627e883083e102e20fe5ffad74499eedbd21d612ac108ec88ef2007

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

PDF links to a 'free generator / game hack' redirector high 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.
Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL

PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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/how-do-you-hack-roblox-users-game-hack PDF link annotation
- http://103.68.2.77/__statics/gudangsoal/files/comment-hacker-roblox-android_GM431946152.pdfPDF link annotation
- http://103.68.2.77/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/when-was-minecraft-free_GM479516143.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/pokemon-go-free-online_GM1094591345.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/free-roblox-clothes_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/are-roblox-hack-clients-a-thing_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/roblox-needs-more-space-but-1tb-free_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/clip60-upload-avxiy74olhs-get-free-pants-roblox-2021_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/does-cheat-engine-even-work-anymore-for-roblox_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/download-apk-tiktok-free_GM835599320.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/free-roblox-noclip-hacks_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/cops-and-robbers-roblox-cheat_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
- https://www.roblox.com/.IIn 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_off00003302.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3302	22460 bytes
SHA-256: `d3480c2acc50343026d656e876b6a01c2431c2f025e09533827a764f62c22b28`
`font_01_sfnt_off00006500.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6500	19292 bytes
SHA-256: `1063e75673a67b6e22b56567db6093c99a505f7cd7b21449473a863f3845cd75`

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