Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59efc5bc731a342…

MALICIOUS

PDF

65.4 KB Authoring application: pdf-parser
MD5: 3428d0ab13bfc16ab5255549a624bb7a SHA-1: d6732a8cea9eccface53bba07ea67c08e515e76d SHA-256: d59efc5bc731a342da04050278c3f5bff6c3575d7c20c79a0743ef40cb40579c
128 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, indicative of a link farm designed to host malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' and the presence of a visual download lure further support a phishing or malicious download 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
  • 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://ourchildrensfund.com/uploads/1/3/0/2/130289789/wiruxumiluzojezuf.pdf
    • http://meredithkaler.com/uploads/1/3/0/4/130435939/3457777.pdf
    • http://localbitprice.com/uploads/1/3/0/2/130288565/cc71111.pdf
    • http://modtone.net/uploads/1/3/0/5/130541688/df3376f8785285e.pdf
    • http://nicolas-rigaux-photographe.com/uploads/1/3/0/6/130640114/a6458c2e.pdf
    • http://cxmockup.com/uploads/1/3/0/5/130590392/5874940.pdf
    • http://sassyarabia.com/uploads/1/3/0/3/130379412/64b885f69e1af8.pdf
    • http://democraticabsentee.com/uploads/1/3/0/5/130539319/775bd5e0e3e.pdf
    • http://rochestersportsfan.com/uploads/1/3/0/2/130271121/34430.pdf
    • http://witteringsfitness.com/uploads/1/3/0/4/130435589/1352759.pdf
    • http://thehnossaproject.com/uploads/1/3/0/4/130436258/130436258.html#my+talking+angela+app+hack

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128a.bin
e99ff661966b9fed3168678b412a767876cfee8a597221bd97d1db12b0156a16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128A 9352 bytes
font_01_sfnt_off00007ee9.bin
343212a95d67edcdbb4b508d98a07cb73d2f686ed65ff985783e27f3dfbed913		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE9 15760 bytes
font_02_sfnt_off0000a241.bin
dd60360f9d05078ed1520c9f690795a4bcfbb5809579fdd3dae8d6a0e6023a61		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA241 16592 bytes
font_03_sfnt_off0000b85e.bin
558773724876b0a668b4e0d5056e3f94e314b35be99c5fc4bb7d9ec52e15f699		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB85E 8356 bytes

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