Malicious PDF — malware analysis report

Static analysis result for SHA-256 89b8f08d1eb2edf9…

MALICIOUS

PDF

73.4 KB Authoring application: Karbon First seen: 2020-09-24
MD5: dbdd046c2f3f3ab540189ef3cde6bd81 SHA-1: e13b152a38943b154c6d61e5d1454850e85b7d8c SHA-256: 89b8f08d1eb2edf9c2c5ed8bdfb1eb6f7a54d452787487f7ecb52ed72687e4c1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, a common technique for SEO poisoning or redirecting users to malicious sites. ClamAV and ML classifiers indicate maliciousness, and the embedded URLs suggest a phishing or malware distribution attempt. No scripts were extracted, but the presence of numerous external links points to a likely redirection or download strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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://soloforsenate.com/uploads/1/3/0/6/130604950/tuvilugobi.pdf In PDF document text
    • http://mountainhighs.net/uploads/1/3/0/5/130588567/4858432.pdfIn PDF document text
    • http://jerremyholland.net/uploads/1/3/0/8/130814676/5a0090447a.pdfIn PDF document text
    • http://livingthepondlife.org/uploads/1/3/0/5/130590233/9717a91fbd791d.pdfIn PDF document text
    • http://michaudwellness.com/uploads/1/3/0/8/130813701/130813701.html#the+principle+of+flow+cytometry+is+based+on+quizletIn 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 5

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_off000010f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F0 8428 bytes
SHA-256: beddfaa381bf673bcebe044c80002b6117d4879b295c60c698414013e44f688e
font_01_sfnt_off0000d0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0AB 2988 bytes
SHA-256: 96a3ed2309478219143b47172ed06ca5a672a5b2a4fe260e56e8bea1ff9790ab
font_02_sfnt_off0000da8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA8B 16148 bytes
SHA-256: 61ca593122bdf9f8d2de89784c713a2b278bdd5b054eff5a59c50fd3ef05b3a5

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