Malicious PDF — malware analysis report

Static analysis result for SHA-256 62627bb0616cdb02…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 07:37:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b402f4af9b68048a55a8ae4eb135c77b SHA-1: a9ae9bab327e7496bdccb81c389b3b8105e805ee SHA-256: 62627bb0616cdb023fac48b03737d0aef2de8ff56fcaf3eccdc33a915a40c503
160 Risk Score

Malware Insights

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

This PDF document employs a lure of free game currency and hacks to entice users to click on a malicious redirector URL. The document body and heuristic firings indicate a redirection to potentially malicious infrastructure. While no scripts were explicitly extracted, the nature of the lure and the embedded URLs suggest an attempt to exploit user interest for malicious purposes, likely leading to further malware download or phishing.

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/406889139/coin-master-free-spins-and-coins-game-hack In PDF document text
    • https://i-tech.ac.id/perpus/repository/https-webrobloxcom-catalog-202120215-hacked_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/cheat-engine-roblox-kicked-bt-server_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-64-rom-hack_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-free-admin-on-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/explot-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-sharkbite-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-stop-a-hack-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/4life-fun-free-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-promo-codes-roblox-november-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-2021k-robux-no-password-obby_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-offers-for-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/youtube-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-free-robux-no-inspect-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-roblox-ad-banner_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-2o18_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
stream_002_off0000308a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x308A 23044 bytes
SHA-256: a954904ecc4806dd3d0d4116678de918d615899652212e076d38121dc7e99c6e
font_01_sfnt_off0000647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647F 18348 bytes
SHA-256: 3aa320ccb9cb7c087074e4ef079b33192d8e05703f275142029ef104db56ac85

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