Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fd739733dbb1046…

MALICIOUS

PDF

38.6 KB Authoring application: LibreOffice Draw
MD5: 84ccdaa4b3a26faadd61a20ee2d7091e SHA-1: 098c297e6104048ceb61e5ac7966c5067272bd47 SHA-256: 9fd739733dbb1046cbb8c6154e60b7ae0fa33e8c6fb4a1d84039fdc219cee494
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or redirection mechanism. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. No scripts were extracted from this sample.

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://traveleatexplore.com/uploads/1/3/0/5/130588272/52e9c55f9.pdf
    • http://writeproject.org/uploads/1/3/0/4/130488884/tojudiriti_woxez_taxivala.pdf
    • http://dididothat.net/uploads/1/3/0/5/130588861/885274.pdf
    • http://smashbroscardgame.com/uploads/1/3/0/7/130740440/xuravegeke.pdf
    • http://stlouistriathlon.com/uploads/1/3/0/6/130639621/pizax.pdf
    • http://proletas.com/uploads/1/3/0/2/130272548/9804170.pdf
    • http://fofagofa.horizon-geo.com/uploads/2020/01/28/wezig.pdf
    • http://mos-nedvig.ru/uploads/2020/01/28/kuvavakulirodob.pdf
    • http://kreativekidsworld.com/uploads/1/3/0/7/130739214/130739214.html#business+information+tech+course

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000116e.bin
e4d18a08d3c23e33bc366855b6687e961bd60d7f021d364d8f6c933866c435b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116E 8268 bytes
font_01_sfnt_off00005bf2.bin
41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF2 2600 bytes

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