Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f5e3890bdd25fe…

MALICIOUS

PDF

36.3 KB Authoring application: Poppler-utils
MD5: cfa7228177cfaae37e48bf0261de468d SHA-1: 951128cfa876c8c8936073797653035a2b82a68d SHA-256: 98f5e3890bdd25fe4573a2d074f4910ccfa8743c23460fcdb8bedbc6d45f44ad
110 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566 Phishing

The critical ClamAV detection and the presence of multiple embedded URLs pointing to PDF files indicate a phishing attempt. The heuristic for a password-protected archive lure suggests a multi-stage attack where the user is prompted for a password to access the actual malicious content, likely hosted at one of the provided URLs. The document body, though heavily obfuscated, contains references to 'Fifa world cup 2018 games apk' and URLs, reinforcing the lure.

Heuristics 5

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://remcofitness.com/uploads/1/3/0/6/130620737/muvilepafonumi.pdf
    • http://thecompassionateasskicker.net/uploads/1/3/0/6/130639438/zuvaxuf.pdf
    • http://onlygodcanjudgeus.com/uploads/1/3/0/5/130590117/2621458.pdf
    • http://clipture.net/uploads/1/3/0/5/130542934/ac973a.pdf
    • http://beyondhillco.com/uploads/1/3/0/8/130813953/130813953.html#fifa+world+cup+2018+games+apk

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001048.bin
4815431cb934e849c22d1c680928650bd8faf5b2b8ea63efbad01017cf9c7a4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1048 8660 bytes

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