Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e4350533795a44b…

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 19:21:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4b7025cdf6ce4f69f9a0b86640d518b3 SHA-1: 923d19d34341c9114a967a629e3dc0aee2f5de04 SHA-256: 6e4350533795a44b6066765b8062041df6f6a900f383e88553603763a8f651b9
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to malicious redirectors and a link farm, masquerading as game hacks and generators. The primary lure appears to be related to 'Coin Master' and 'Roblox' exploits. The document's structure and embedded links strongly suggest an attempt to drive traffic to malicious websites, likely for further malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/regal-world-coin-master-game-hack In PDF document text
    • https://privatearrangements.co.nz/public/files/roblox-hack-dragon-ball-rage_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-not-get-hacked-in-roblox_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/was-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/bux-free-robux_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-hack-an-roblox-account-2021-november_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/roblox-jailbreak-how-to-get-free-money_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/hack-de-robux-2021-pastebin_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-accounts-and-passwords-for-roblox_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/hacks-to-get-robux-in-tower-of-hell_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/pubg-uc-lucky-draw_GM1330123889.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-hack-roblox-accounts-inspecting_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C5 22336 bytes
SHA-256: 4343815859bd1a08a9c113930f7d52e924f7d9af6131d0d889c5ac78c357e63d
font_01_sfnt_off00006579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6579 18280 bytes
SHA-256: 5aed029aeaebf97b3b18bb1c617ca2ab564e35296fc4693c3058f9041375acb1

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