Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ce4629998684d2…

MALICIOUS

PDF

39.7 KB Authoring application: SWFTools
MD5: 0388ad78af2c5f5ecf62cbfe52a834b0 SHA-1: 3a5e0f1181b4f6783a8d14bd27b7ff6c60296946 SHA-256: f3ce4629998684d27baf7ae84367f667bad09f284b670c1374aed3ffd0784177
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the presence of a 'SE_DOWNLOAD_BUTTON' heuristic further support a phishing or malware distribution intent. The document body, while containing some seemingly legitimate text, also includes numerous URLs pointing to external PDFs, reinforcing the attack pattern.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://digitalein.com/uploads/2020/01/28/soziwujifef.pdf
    • http://thaipin.com/uploads/1/3/0/7/130738845/2113745.pdf
    • http://dcepool.org/uploads/1/3/0/2/130272505/nesufitinalurin.pdf
    • http://fuwa.magbaysportfishing.com/uploads/2020/01/28/ripopililuxufezivi.pdf
    • http://danielstorage.com/uploads/1/3/0/6/130620841/pefediv-vibuve-fubofolomusol.pdf
    • http://dokafupor.worldtraveltrip.com/uploads/2020/01/28/8742998.pdf
    • http://stylerant.com/uploads/1/3/0/3/130323409/2077685.pdf
    • http://campusministry.net/uploads/1/3/0/5/130551153/resilegigevot.pdf
    • https://pesawolobebum.weebly.com/uploads/1/3/0/2/130289163/suzude.pdf
    • http://nailsbymargaret.com/uploads/1/3/0/5/130550690/sadazedelewon.pdf
    • http://upanaloriri.com/uploads/1/3/0/5/130550711/8780722.pdf
    • http://pameladirnberger.com/uploads/1/3/0/6/130603905/130603905.html#calgary+barbell+16+week+program+spreadsheet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012d9.bin
b1da3995be3a59705ef0166bc6c740e8c06ea13e5cb280b8c91f7a3453fe37d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D9 8724 bytes

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