Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b8bb138b6279cbf…

MALICIOUS

PDF

37.2 KB Created: 2021-05-22 15:37:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1ed81ee60ed48197325266d4b1b310f2 SHA-1: 7b640d12c3fa9cbd29b8bc5a2edb362e7408a63d SHA-256: 2b8bb138b6279cbffb665666a4d6643f8a8296a0254aaae5dbda575b0764f170
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to known malicious infrastructure, specifically promoting 'free game hacks' and generators. The document body and heuristics indicate a lure designed to trick users into clicking these links, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/minecraft-java-edition-free-game-hack In PDF document text
    • https://reggieslockandkey.com/images/pokemon-go-free-99_GM1094591345.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spins-no-generator_GM406889139.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
font_00_sfnt_off000034cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34CC 26616 bytes
SHA-256: 4e4b302372be91ed9cc856382e97dbc1b2cc5da4b1a79bd2daaa4cf0140a1025
font_01_sfnt_off000070b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B0 18164 bytes
SHA-256: e28d0ded599416f75746d42b4ddd49ac4ed584cd54835945167b34c6d366202b

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