Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee0ec8f69b52d462…

MALICIOUS

PDF

42.3 KB Created: 2021-06-07 09:50:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d42c028ce68039ae0323326d20c34c41 SHA-1: 080948836c2c25636e3400b2185a00bbdb4d9ebd SHA-256: ee0ec8f69b52d46299aa1f1bd01795632498c42260cb8e96481f4132688a35e4
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are identified as malicious redirectors, specifically pointing to a "free Roblox gift codes game hack" lure. The document body also contains similar text and a call-to-action phrase, reinforcing the phishing attempt. The primary IOC is the malicious URL used in the redirection.

Machine Learning

  • Nyx PDF Classifier clean score 0.0284

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.tw/app/431946152/free-roblox-gift-codes-game-hack In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000038e0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x38E0 26840 bytes
SHA-256: 4d9c642c242495b4887e274844acf59cf57d8abcd8ea71f8b7cf950e594282c2
font_01_sfnt_off00007669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7669 3992 bytes
SHA-256: 43e72e756231cfd354bd65c2ed3b09ad4eff56ad11e7f155ed2920e6bb7860dd
font_02_sfnt_off0000838f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 18348 bytes
SHA-256: c5492d099855e19e1d478479679b4d5df207d3f0bc1d67d7fc529e4da3b929c3

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