Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6044eb9efc7f352…

MALICIOUS

PDF

39.7 KB Created: 2021-05-21 18:08:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 941e7b80534d5612ff818036ee66099a SHA-1: ead66f1977b4257bcfcc840eb74bc66f46ac3a1a SHA-256: e6044eb9efc7f352f23aa60de54d92408792d92279cf720fa99c03eb687b556f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, specifically promoting 'free Robux' and 'game hacks' which are common lures for phishing and malware distribution. The document body and heuristics confirm the presence of malicious redirector links, indicating an attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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-robux-2021-no-human-verification-game-hack In PDF document text
    • http://fotoflas.gr/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://fotoflas.gr/images/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://fotoflas.gr/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000310d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x310D 24764 bytes
SHA-256: 772ce8d23ddefab3912591a8337abec939854db3f92c128f0db7746ead1eaac7
font_01_sfnt_off00006a31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A31 3608 bytes
SHA-256: 608f0dd4f6bfb6adbccec84228618ee8e4c9e09226d7330efb5300e499d1567f
font_02_sfnt_off000076b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B9 19260 bytes
SHA-256: a5b009a33d06eb91b5687aca452054299973906144ac3f9b2fc2dd0e2fef1dac

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