Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5f398384c7853ee…

MALICIOUS

PDF

36.4 KB Created: 2021-05-10 11:05:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 120d5600d3e8497bd349939e076d098e SHA-1: f47ebbf469b5ba1056a66cdcd363db2be8c6ac01 SHA-256: f5f398384c7853ee449f3f887aa9c12ea9715a91ee7d94bb368397350268a325
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a lure for a 'game hack generator'. The document body also contains text related to this lure. While no scripts were extracted, the presence of malicious redirector links and the lure strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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/mcpe-download-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000034cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34CD 24756 bytes
SHA-256: fc822c93e316aa56bbbd98aea0243abf1a20e6f6c5e348a0903b7c25d1125129
font_01_sfnt_off00006ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE7 18240 bytes
SHA-256: a3c3f4f77bf23c89057dc73fb74ec5a2774110dd3bd29e37df914f9a3327f43f

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