Malicious PDF — malware analysis report

Static analysis result for SHA-256 a301db2f13345f32…

MALICIOUS

PDF

44.8 KB Created: 2021-05-13 21:39:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b1e1edd8e956ac48c1bc97f0dcb86b06 SHA-1: 07bf493ecb3fb17fb607efabee03700d50358212 SHA-256: a301db2f13345f32d1d951dbb83a292b186e0ac6720856c159b6ad095f9434a9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'free generator' or 'game hack' lures. The document body, though heavily obfuscated, contains references to these lures and the primary malicious URL. The presence of these links strongly suggests an intent to redirect users to potentially harmful sites for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/431946152/free-roblox-card-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/grabpoints-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/actual-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/wurst-hacks_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/mc-update_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/hack-avatar_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000498e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498E 25780 bytes
SHA-256: 401ef967141dc56606cb4a46643aab6048a575b11e78c343b6ccaa339ecf399e
font_01_sfnt_off00008263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8263 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00008c5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C5F 18348 bytes
SHA-256: 112d0d0d53092b330ca0b2276e93dcc27866393801cc1956065b4b485469ba66

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