Malicious PDF — malware analysis report

Static analysis result for SHA-256 956356eca7e50043…

MALICIOUS

PDF

30.5 KB Authoring application: Mobipocket Creator
MD5: ea389dcbb3c9e6b5b3e47d4df6cc0655 SHA-1: 610048c7dc239f51c5c21b0a1f3d45613cd097ef SHA-256: 956356eca7e50043c7d888c2acebae4071119fd37fae20f5b98181b48d7a8af0
142 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection also flags this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection purpose. The document body contains text related to software keygens, which, combined with the numerous links, suggests a lure to potentially malicious websites or for SEO spam.

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
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://74-123-76-241.mgwnet.com/uploads/1/3/0/6/130620952/4789706.pdf
    • http://nursesnowinc.org/uploads/1/3/0/2/130291434/e7e8707093e76.pdf
    • http://middletennesseeflyfishing.com/uploads/1/3/0/5/130551726/3810413.pdf
    • http://propertyexcellencemoree.com/uploads/1/3/0/6/130604408/nosawikekinen_denuwijotu_debas_dowonen.pdf
    • http://cintradesign.com/uploads/1/3/0/5/130539496/4424835.pdf
    • http://blau-logistics.com/uploads/1/3/0/4/130476605/wajukur-muritumezas-rofale-zofivilegobev.pdf
    • http://youdirtydawgpdx.com/uploads/1/3/0/3/130379231/6242874.pdf
    • http://ottawaalleganhttf.org/uploads/1/3/0/4/130489162/4791834.pdf
    • http://therapistconsultant.com/uploads/1/3/0/6/130604768/5200477.pdf
    • http://yenisiyasetkulturu.com/uploads/1/3/0/6/130639436/2215478.pdf
    • http://soundanddoctrine.com/uploads/1/3/0/3/130323164/5119422.pdf
    • http://albertatreatingchemicals.ca/uploads/1/3/0/7/130740349/taxafivejorenuru.pdf
    • http://braveheartconstructionltd.net/uploads/1/3/0/5/130550859/fenilipuf.pdf
    • http://lprc.us/uploads/1/3/0/6/130640048/8864558.pdf
    • http://nicolaheatharts.com/uploads/1/3/0/4/130488345/goramolafemovogagoki.pdf
    • http://mansionuk.com/uploads/1/3/0/6/130639762/6654224.pdf
    • http://www.omegaalphausa.com/uploads/1/3/0/6/130620607/1856748.pdf
    • http://treasures4yourheart.com/uploads/1/3/0/8/130813095/130813095.html#adobe+acrobat+9+pro+extended+keygen

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001cb4.bin
0b593f826a0070ed5cc84d274220f5dfd1f5f5af78c769f146651d025c2f6ea6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1CB4 7084 bytes

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