Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c1e505c469183ab…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 02:10:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7f23b4d71fb46fb22cf47ce7ba15fadb SHA-1: 1d98e702584c69cce19afad8a7f3c27f2b6d0b5f SHA-256: 6c1e505c469183abf25b418e4512ee5108031acbc64cbaacfb8b9f4992db0e5e
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. It contains multiple embedded URLs, including one pointing to a known malicious redirector and others hosted on an IP address, which likely lead to further malicious content or downloads. The document's structure and embedded links strongly suggest a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.
  • 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
  • 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/406889139/coin-master-free-gift-links-2021-game-hack In PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-1701-20_GM406889139.pdfPDF link annotation
    • http://118.174.0.244/UserFiles/File/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/i-want-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-map_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-home_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-coins-link_GM406889139.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
stream_003_off000048c2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48C2 30196 bytes
SHA-256: e32fe803030ff7a5cd5978aba2ee615475ac355eda0073ccbffe2ffa32bf7f0a
font_01_sfnt_off00008695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8695 18284 bytes
SHA-256: 00f588a17a5ec62cfb33c50734468f0ac7c021c7f981e3ddf1024eb2998eadd5

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