Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a7a953e843019d4…

MALICIOUS

PDF

35.0 KB Created: 2021-06-21 23:29:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 641c7ea59ef8c1d37288e7976dc5ff5d SHA-1: fbad63a8b0a1f6a8dcd0afdc7d4bae82f9fa5bbc SHA-256: 9a7a953e843019d4d889ca5a069f291f0a5631ed5fc54d38fd1a7a531cd597d6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to redirectors and potentially malicious infrastructure, masquerading as game hacks and generators. The primary lure is a link to 'fly-hack-jailbreak-roblox-game-hack', which is hosted on a known malicious redirector. The document's structure and embedded URLs suggest an attempt to trick users into downloading further malicious content or visiting compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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.co/app/431946152/fly-hack-jailbreak-roblox-game-hack In PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/114-hacks_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/real-robux-generator_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-roblox-accounts-v3rmillion-2021-august_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_off00003151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3151 22368 bytes
SHA-256: 9d92523f44b512c9a9ba926fa0f4e1b81669d45a9b39ab06fc9742d6cf47caca
font_01_sfnt_off0000633b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633B 19288 bytes
SHA-256: 6d700cca2a2098e4e61f4fb9324a0a2d0a14abc968e94178f32308202500126a

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