Malicious PDF — malware analysis report

Static analysis result for SHA-256 8474f6fb42706cb9…

MALICIOUS

PDF

33.4 KB Authoring application: LibreOffice First seen: 2020-09-24
MD5: c8882f8546725679973ee55911ccd4d0 SHA-1: b5eb4dcf54786b2cfafdde547ef2ed5efba9c830 SHA-256: 8474f6fb42706cb9c1068434cdaca699226447fc66b95a7481cc6491d20f47ae
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains, indicating a link farm or redirection strategy. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution via these external links. No scripts were extracted, but the PDF structure itself is indicative of a malicious campaign.

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://bluemonstercellars.com/uploads/1/3/0/7/130775865/dibugibex-xilaramolev-voxim.pdf In PDF document text
    • http://mobilegeneratorservice.com/uploads/1/3/0/7/130776478/6786ff76d0.pdfIn PDF document text
    • http://global4xloan.com/uploads/1/3/0/6/130620209/096a66a6d.pdfIn PDF document text
    • http://rockinghamprecisionmetalworks.com/uploads/1/3/0/6/130620865/sokebokogumaveso.pdfIn PDF document text
    • http://patriciahopkinsbarnesfineart.com/uploads/1/3/0/6/130622038/618fe2778840f.pdfIn PDF document text
    • http://rasconsultingfirm.com/uploads/1/3/0/6/130621874/6082819.pdfIn PDF document text
    • http://ntagent.com/uploads/1/3/0/2/130272488/d1652216.pdfIn PDF document text
    • http://newkids.co.uk/uploads/1/3/0/4/130488666/2787161.pdfIn PDF document text
    • http://northjerseydirectmail.com/uploads/1/3/0/7/130776585/2642388.pdfIn PDF document text
    • http://namedtrust.com/uploads/1/3/0/3/130323106/44c9af5ffab8.pdfIn PDF document text
    • http://kaping.org/uploads/1/3/0/6/130603959/2016478.pdfIn PDF document text
    • http://cecilyeiferle.com/uploads/1/3/0/9/130969813/130969813.html#children%27s+tylenol+mg%2FkgIn PDF document text

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA6 7932 bytes
SHA-256: 10dc6bc8ebc99d8e7b77bcb3203c5e85c8eeb2df83d6f4d7e19bb388d62cb1df

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