Malicious PDF — malware analysis report

Static analysis result for SHA-256 e44a508aa7c06491…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 01:24:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7654e6bc36ff016f23c550764dbd484c SHA-1: d392128fed40a8c10144d9d35d547808fca426b1 SHA-256: e44a508aa7c0649102d1d1a5c94d66880474c5a1b29727ed9f1490f1253f49b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for game hacks and free currency, directing users to malicious redirectors. The primary redirector, http://netcdn.tw/app/406889139/haktuts-coin-master-hack-game-hack, leads to further malicious PDFs hosted on pakoles.com. This indicates a chain of malicious content delivery, likely intended to distribute malware or facilitate phishing. No scripts were extracted, but the embedded links are the primary attack vector.

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/haktuts-coin-master-hack-game-hack In PDF document text
    • http://pakoles.com/assets/CKImages/files/cheat-engain-mac-for-roblox_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/cheat-engine-roblox-lumber-tycoon-2-table_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/pubg-uc-gift-card-free_GM1330123889.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/roblox-hacks-project-jojo_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/freerobux-co_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/nuevo-hack-de-robux-2021_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/roblox-install-free_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/create-minecraft-server-free_GM479516143.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_002_off0000342f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x342F 22704 bytes
SHA-256: 4cdd3255950609c204076dd6d657ba93a599bb33a09d4a39db33b2e2f0ab9053
font_01_sfnt_off0000672d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672D 18144 bytes
SHA-256: 7af4f5aa78d431c9967afade13530042deab11371d440c57f3259e725ceeac7b

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