Malicious PDF — malware analysis report

Static analysis result for SHA-256 37face029bae0d39…

MALICIOUS

PDF

35.0 KB Created: 2021-07-09 15:04:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a0ec358f33152296f03b91292439a2ad SHA-1: 02fd661965ca957488c6ae7fffbf7f2edb66f950 SHA-256: 37face029bae0d399735829536e29d46939df42dfa21440b8b45c9f9f0f3ba3d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links that redirect to a 'game hack' lure, identified as malicious infrastructure. The document body and embedded links suggest a social engineering attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.tw/app/406889139/kachifpro-game-hack In PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-free-rthros_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-skywars-fly-hack_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-100-always-working-2021_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/www-robux-hacker-co_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-paid-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/just-go-to-mobi-hack-robloxhack_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-1x1x1x1-hack_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-sited_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/get-20210-robux-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/http-robux-free-in_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-download_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
font_00_sfnt_off000032cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32CD 23168 bytes
SHA-256: f0324846953ae30d698dd7f9eefd6abcda2e8c06d21cb519542777248da167dd
font_01_sfnt_off0000671e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671E 18072 bytes
SHA-256: 72a3da90a05afc5dc46f93167f9d09aeeb78081726754e710800ebd664932104

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