Malicious PDF — malware analysis report

Static analysis result for SHA-256 3faaee496be388e5…

MALICIOUS

PDF

46.6 KB Authoring application: pstoedit
MD5: e84a6da6a093ec678663870af4cabdc3 SHA-1: c6d8c8d05aecae0e208a355bd5e7b89575ce8d7e SHA-256: 3faaee496be388e5b41bdbb9e3e0d2a16d6b8dec6a04335fa1e0bec2d9bfdab5
130 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to other PDF files, indicative of a link farm. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or malicious redirection intent. The presence of a visual download button suggests a lure to encourage user interaction with the malicious links.

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://royaltybond.com/uploads/1/3/0/7/130775679/6e67ae8231b5acd.pdf
    • http://merakiskincare.net/uploads/1/3/0/7/130738505/kenedoxafuma_sopekodokip_vaxelasejuzexi_dovuzoserapilek.pdf
    • http://mrspsela.com/uploads/1/3/0/4/130435725/7338833.pdf
    • http://andymech.net/uploads/1/3/0/5/130588347/1592753.pdf
    • http://webpipes.net/uploads/1/3/0/2/130289625/duwizilafov.pdf
    • http://yamayogacollective.com/uploads/1/3/0/6/130603884/rubibeka_xolatumiza.pdf
    • http://skadooshdance.com/uploads/1/3/0/6/130621838/7ef84eec3516.pdf
    • http://disdiy.com/uploads/1/3/0/2/130291544/8527264.pdf
    • http://ne-surgerycenter.net/uploads/1/3/0/4/130488410/130488410.html#trb+tet+annual+planner+2018

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001310.bin
ec05b72ce70c1e27139f6c4a375e529f9f5a3b1d3cd4f9295a4bbfc419d20aa8
pdf-font-stream PDF embedded font (sfnt) at offset 0x1310 8336 bytes
font_01_sfnt_off0000683c.bin
7e5d7fa4ab93f7cd46e2caccfc1ed195fd50d90c25756a19bee3d2453db93d4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x683C 11428 bytes