Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46743944dfa85b4…

MALICIOUS

PDF

34.6 KB Authoring application: LibreOffice Draw
MD5: 8dde5dfc9d22e887637addc070b145e0 SHA-1: 1d5e96433cd1ecaab8435e3f9c45658c891d3194 SHA-256: d46743944dfa85b46ba383f44d9da3e0989c810165dbf23b07f46ec3ff74d392
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a phishing or SEO spam campaign, as indicated by the 'PDF_SEO_LINK_FARM' heuristic firing. It contains a large number of embedded URLs, with the first identified URL being http://mylaurabelle.com/uploads/1/3/0/6/130604952/dfa0cd9696.pdf. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing classification. The document body, though heavily obfuscated, also contains a subset of these URLs.

Heuristics 3

  • 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
  • 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://mylaurabelle.com/uploads/1/3/0/6/130604952/dfa0cd9696.pdf
    • http://bguitarsliuteria.com/uploads/1/3/0/5/130588624/9143384.pdf
    • http://northamericancontinent.com/uploads/1/3/0/4/130491932/sutib.pdf
    • http://soulstarmassage.com/uploads/1/3/0/6/130620990/2916812.pdf
    • http://healthlogr.com/uploads/1/3/0/6/130604968/2709426.pdf
    • http://rostelekomrt.host/uploads/1/3/0/4/130476944/zadojesepumaruna.pdf
    • http://gettogethr.com/uploads/1/3/0/5/130539046/mijanixorigami-jisapebidagik-murugikagowov-nikatajabit.pdf
    • http://scottbrackenridgebuilders.co.nz/uploads/1/3/0/6/130605443/pazoverikegoja.pdf
    • http://rossloto.site/uploads/1/3/0/6/130620275/wibivugubizel.pdf
    • http://nathannegri.com/uploads/1/3/0/3/130323216/piwuzogikidesuzeze.pdf
    • http://montevista.ca/uploads/1/3/0/4/130483123/3072afd9d9.pdf
    • http://shopbelfast.info/uploads/1/3/0/8/130814101/130814101.html#dasar+dasar+akuntansi+jilid+1+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003121.bin
fd74af3e734ef414ac30d51eb9068f5a4f614b3fb55b5a66b306354959951603		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3121 7524 bytes

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