Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9a1f3eda54d1e90…

MALICIOUS

PDF

65.7 KB Authoring application: PDFBox
MD5: a5ccb85dd029e6990a721d56a6f18230 SHA-1: 94f8591e73268120781b258100089d043676d72b SHA-256: f9a1f3eda54d1e905cea40938cdd896a5c0ddfb96771152ebc2ae2f62405da6f
160 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic. The SE_MFA_LURE heuristic indicates the document is designed to harvest credentials or abuse multi-factor authentication. The embedded URLs point to various PDF files, suggesting a phishing or credential harvesting campaign. No scripts were extracted from this sample.

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://hellvestigators.com/uploads/1/3/0/5/130588290/1794244.pdf
    • http://cimarronofaz.com/uploads/1/3/0/5/130590282/fikaxujob-ledobu.pdf
    • http://galadus.pl/uploads/1/3/0/4/130436180/midamuziva_zivogibajokox_xujawemo.pdf
    • http://nationalwarrantydivision.com/uploads/1/3/0/6/130621178/e696a1dd8d0523f.pdf
    • http://talinaperkins.com/uploads/1/3/0/6/130639725/917026.pdf
    • http://davaoconstruction.com/uploads/1/3/0/2/130271001/480861.pdf
    • http://283bemis.com/uploads/1/3/0/2/130272403/1868731.pdf
    • http://noradragoon.com/uploads/1/3/0/6/130621167/b1dd77.pdf
    • http://moniquesdreamsounds.com/uploads/1/3/0/4/130435717/nimebezemigudegijev.pdf
    • http://www.modelrailmats.com/uploads/1/3/0/4/130478935/4e88e60c236c.pdf
    • http://steven.vwlede.be/uploads/1/3/0/2/130272280/wavagel_jipomixitumogax_venababixo_xunasivosexema.pdf
    • http://northwestuu.com/uploads/1/3/0/5/130550684/130550684.html#how+to+convert+a+cisco+1852i+ap+from+mobility+express+mode+to+capwap

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013be.bin
2e577ca0cc7786df07cd5a34ccb6cd327a85896a2bb75d662af537c54d5b432a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13BE 9304 bytes
font_01_sfnt_off0000bc58.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC58 16036 bytes

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