Malicious PDF — malware analysis report

Static analysis result for SHA-256 07118d7ff158ebd6…

MALICIOUS

PDF

44.0 KB Created: 2021-05-16 11:23:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c1ca4b6defcb6ff06a71089ab821a387 SHA-1: a5737f42152bd4119584e2d97c7b09b184f72053 SHA-256: 07118d7ff158ebd619fab36dea5322ce77ab8a01f0edd5b8ad420cad0b0c5504
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to appear as 'free generators' or 'game hacks' for popular games like Roblox and Coin Master. The primary heuristic indicates a 'PDF link farm' with 28 external links, many of which point to other PDFs hosted on camphat.com.vn. The document body, though heavily obfuscated, contains references to 'free robux' and a URL associated with a 'game hack'. The embedded links likely redirect to malicious websites or phishing pages, aiming to trick users into providing personal information or downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • 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 https://netcdn.xyz/app/431946152/rbxoffer-com-free-robux-game-hack PDF link annotation
    • http://camphat.com.vn/upload/UploadFiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/robux-sites_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/wurst-112_GM479516143.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.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.

FilenameKindSourceSize
stream_003_off00004a96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A96 28268 bytes
SHA-256: e1e086dad0b648bf76a33e6d9debe891fc2af0dc63b22f37966d02a570df84a6
font_01_sfnt_off00008a03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A03 18276 bytes
SHA-256: 9aeb6f41d3354634239b7c8beac9b422ae3978a513a1679011b82127add4d155

Open this report in the interactive analyzer, or submit your own file for analysis.