Malicious PDF — malware analysis report

Static analysis result for SHA-256 df47d8288a91589e…

MALICIOUS

PDF

37.5 KB Authoring application: LibreOffice Draw
MD5: 2a6d43a05e5fe234b2201a46c540bab1 SHA-1: 2c323a48c75e21a50277929600b6bb93ad26d5c2 SHA-256: df47d8288a91589ee93b9441bffdf01f5d12a98450238898b65123dcfc327cce
152 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. These links point to various PDF files hosted on different domains, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier further support its malicious nature, likely for phishing or distributing further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://customerfocusedlearning.com/uploads/1/3/0/4/130483288/robarizobaf.pdf
    • http://www.cameronmonti.com/uploads/1/3/0/6/130603929/lupagiwukakeni_zoxepoludobo.pdf
    • http://urbantadasana.com/uploads/1/3/0/7/130738970/2080830.pdf
    • http://entrepreneurialinnovations.com/uploads/1/3/0/6/130604626/fabipijebexej_xufuval.pdf
    • http://hostmaster.alpenstadt.net/uploads/1/3/0/7/130739806/2d428.pdf
    • http://hostmaster.webdesignspace.co.uk/uploads/1/3/0/4/130488779/4477905.pdf
    • http://www.hopefordysautonomia.org/uploads/1/3/0/8/130814909/nozesososalofiba.pdf
    • http://elitemedicalbillingservices.net/uploads/1/3/0/6/130604251/4182764.pdf
    • http://cklcustoms.com/uploads/1/3/0/7/130776535/3482739.pdf
    • http://warrenbaker.org/uploads/1/3/0/6/130605167/8581062.pdf
    • http://sooperda.com/uploads/1/3/0/4/130476320/wusizibujor.pdf
    • http://anchoredinchrist.net/uploads/1/3/0/7/130740231/15c4f3bf40ea87.pdf
    • http://74-123-76-74.mgwnet.com/uploads/1/3/0/4/130488195/130488195.html#filmic+pro+vs+moment+app

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000023b9.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B9 16036 bytes
font_01_sfnt_off00003ac8.bin
8263d4c271b75e352ed7d96274ecefcb26ee686a5744298cd0a25dfc79b99177		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3AC8 7748 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.