Malicious PDF — malware analysis report

Static analysis result for SHA-256 12a38a897ab425f9…

MALICIOUS

PDF

44.7 KB Created: 2021-05-17 01:04:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d49036769651c8f34c9932b35caa43d0 SHA-1: dda99dfa207355bd0205f077112b1171b3be9515 SHA-256: 12a38a897ab425f90ce06274560d54033f8f823904fbd2f718699e1cab5864b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a malicious redirector chain designed 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-robux-kid-friendly-game-hack In PDF document text
    • http://hakuna.co.za/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/ww-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://hakuna.co.za/images/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/roblox-weird_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-roblox-pin-codes_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_003_off00004a4b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A4B 24452 bytes
SHA-256: 5260067c66a169283aee82400939d7c8c4be84400ae7605623e0504aadf764f3
font_01_sfnt_off000081ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AC 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B5E 18560 bytes
SHA-256: 454f7722b5e362ebb3dfaacf6303323d9fe80b0a3b091af17d82283aff73172d

Open this report in the interactive analyzer, or submit your own file for analysis.