Malicious PDF — malware analysis report

Static analysis result for SHA-256 f519990a1f7470e0…

MALICIOUS

PDF

44.5 KB Authoring application: Scribus First seen: 2020-09-24
MD5: 175bf1bae109e78ecab8f73611b0f081 SHA-1: 0273ef5f32adb662f30e56d764101798bf176afb SHA-256: f519990a1f7470e0e257bef89824575d1218dee51cdd140cb8a4a5a13797c380
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to other PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or phishing campaign designed to drive traffic or distribute further malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic-driving intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://buythebirdseed.com/uploads/1/3/0/5/130590278/6acf98a0b.pdf In PDF document text
    • http://oxnardpoolcleaning.com/uploads/1/3/0/4/130489175/2785860.pdfIn PDF document text
    • http://realizingmedia.net/uploads/1/3/0/5/130551001/mulewujofot-vizimeripojiz-jujew.pdfIn PDF document text
    • http://modwsu.com/uploads/1/3/0/5/130588885/morajuzerezizi.pdfIn PDF document text
    • http://kitsapcountypsychic.com/uploads/1/3/0/3/130323647/baxeluwamakotamelik.pdfIn PDF document text
    • http://ohioawnings.com/uploads/1/3/0/6/130639115/7116226.pdfIn PDF document text
    • http://cultureexcellence.co.nz/uploads/1/3/0/2/130288522/353012.pdfIn PDF document text
    • http://www.pc-helpme.com/uploads/1/3/0/6/130620764/318382.pdfIn PDF document text
    • http://lgnrg.net/uploads/1/3/0/6/130621500/2362144.pdfIn PDF document text
    • http://alchemyperfume.com/uploads/1/3/0/3/130379101/3298064.pdfIn PDF document text
    • http://host25.carmichaelnl.com/uploads/1/3/0/2/130270904/130270904.html#arithmetic+geometric+series+formulaIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3691 2616 bytes
SHA-256: 9c441396c78fcec381b139909df8eae4e3e4b3b77c9f9e3b7c3f2073b33ed4b0
font_01_sfnt_off00003f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F4A 16164 bytes
SHA-256: 15c5e4cb7890b106e86e8eca26ce7e2c2b0c163eba2a8b10419abf065488893d
font_02_sfnt_off0000570e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x570E 8168 bytes
SHA-256: b0185242d8393b914f75539d314b75e0bce441ccb801779c797c7835051eb9dc

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