PDF malware analysis — malicious · 2bfda83897ddd30d

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 00:14:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 14bac3732178c69b2d46944cc7d360ba SHA-1: 46399b1f3a880583841062008bf82d2fb1210f4a SHA-256: 2bfda83897ddd30d412bb51f585dd0fc25d15e7632d86636261e8cf9088dca28

82 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 4

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.
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.tw/app/406889139/free-coin-master-cheats-game-hack PDF link annotation
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/roblox-free-ssscripts_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/hydra-roblox-free-robux_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/roblox-sad-cheating-story-albert-he-cried-on-video_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/pepsi-hacks-roblox-script-cbro_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/denis-free-robux-code_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/redline-roblox-hack-booga-booga_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/hack-roblox-adopt-me-money-infinite_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/roblox-robux-hack-android-2021_GM431946152.pdfIn PDF document text
- http://www.highsecuritykwt.com/uploaded_files/userfiles/files/free-code-robloxcom_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_off000036ec.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x36EC	22152 bytes
SHA-256: `fdd9b6cdd6c6c16b38f95474afa10238d8733cdb1e5eb9125ea3511cba0bc8ee`
`font_01_sfnt_off0000681b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x681B	18164 bytes
SHA-256: `4e327774ea367dd6db8ab9fb2ead9e727b5b85cd8073dc852ad5e8a680729fc1`

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