Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f3d48d12888cd3…

MALICIOUS

PDF

41.3 KB Authoring application: Nitro PDF
MD5: 3b122809e3cb5bcd9e39ef7c4de09599 SHA-1: 94dc44ff0d1473d19f3e01dab04c95c4537cc4c0 SHA-256: e1f3d48d12888cd3f92d11e3f59e528a7c36e115f0782bf96606ffaceb089d10
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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://dev.letsgetstartup.com/uploads/1/3/0/8/130814469/47e74.pdf
    • http://www.vaughanlawsphotography.com.au/uploads/1/3/0/8/130874067/1435954.pdf
    • http://genuinefenderparts.com/uploads/1/3/0/7/130739080/bc9f04bf1fab.pdf
    • http://www.jodecoroadumc.org/uploads/1/3/0/7/130739349/revemo-jonasegan-fibazado-bafifuvewizan.pdf
    • http://equiporett.com/uploads/1/3/0/6/130620609/8575195.pdf
    • http://treinasoft.net/uploads/1/3/0/7/130738876/rodevimusix.pdf
    • http://aronstubbins.com/uploads/1/3/0/6/130604525/rovoxemofelela-gimisi.pdf
    • http://studioksandb.com/uploads/1/3/0/7/130740497/jaralimebelafodes.pdf
    • http://sophiacatalina.info/uploads/1/3/0/3/130379341/zogipubiwudevib_xalevawewaxis_ripezoduliraleb_bigetoti.pdf
    • http://www.armentasvisitationmonitoring.com/uploads/1/3/0/2/130272905/9dc0cf5fac.pdf
    • http://antiochchurchcary.org/uploads/1/3/0/2/130272631/vadatuworal.pdf
    • http://chasingalovesupreme.com/uploads/1/3/0/5/130545573/c18400d515ac.pdf
    • http://nic-hunter.com/uploads/1/3/0/6/130639578/3991919.pdf
    • http://bdofilm.com/uploads/1/3/0/6/130620367/kirivoso.pdf
    • http://x0903667xstreamtravel.xsideas.com/uploads/1/3/0/5/130539311/130539311.html#mexico+vs+korea+world+cup

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004689.bin
38e93b796e598bc42b5a7ae7e5d91d962f6d8a08e527266ab85b6265e7bdca17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4689 8660 bytes

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