Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe0cbf7e1f2178c5…

MALICIOUS

PDF

42.4 KB Created: 2021-05-13 20:06:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 69caed3993a59ca3505530d5f88460b4 SHA-1: d5f1e43afceae27a306982bdbd921553c94cc2a1 SHA-256: fe0cbf7e1f2178c5c39c8301088a44d505ee4ba64a1218cedd7988f89c2b59d7
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document employs social engineering tactics, specifically a 'ClickFix' lure, to trick users into clicking links related to game hacks and free in-game items. The document contains multiple links, including one pointing to an IP address, that likely lead to further malicious content or downloads. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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 https://netcdn.xyz/app/479516143/apps-to-get-minecraft-for-free-game-hack PDF link annotation
    • http://122.201.26.170/files/editor/files/roblox-com-free-robux_GM431946152.pdfPDF link annotation
    • http://122.201.26.170/files/editor/files/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://122.201.26.170/files/editor/files/coin-master-free-spin-facebook-link_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_off00004ba9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BA9 25080 bytes
SHA-256: 32ad6ffb3f1b4376319c788c12ebd93e037415e5600588a9574b685004554b75
font_01_sfnt_off000084be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BE 17884 bytes
SHA-256: 4134fedd636fdbecd148c3695cd5288f8e02410e5797e7f05767ae301205484f