Malicious PDF — malware analysis report

Static analysis result for SHA-256 6965eec52f5225cb…

MALICIOUS

PDF

43.0 KB Created: 2020-03-21 13:44:50 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 342a6e8689c85da223bf31ace7fabcf3 SHA-1: 0fe44c9870fd4c51359d7cf15c34171fcc2c5689 SHA-256: 6965eec52f5225cb6859afc2688b73097c7944b698c4872e151b97d7176ce337
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains a large number of external links, indicative of a link farm or SEO manipulation tactic. The document body contains obfuscated text and embedded URLs, suggesting an attempt to redirect users to potentially harmful content. No scripts were extracted, but the sheer volume of external links points to a malicious intent to drive traffic or host malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ellieandcarlydcsfinalproject.com/uploads/1/3/0/6/130604666/130604666.html#matlab+fprintf+array+format
    • http://retrovideogamez.com/uploads/1/3/0/2/130271150/tosego_tedular.pdf
    • http://ceco-industries.com/uploads/1/3/0/3/130313167/15ff605.pdf
    • http://aedutah.com/uploads/1/3/0/6/130621776/kevixufe.pdf
    • http://www.specialorequal.com/uploads/1/3/0/2/130271045/b3d6926af06c.pdf
    • http://paversoverconcrete.com/uploads/1/3/0/6/130621569/fatoki-zeserogatepef.pdf
    • http://morangroup.com/uploads/1/3/0/9/130969896/lefonuxu_riburebola.pdf
    • http://incrediblegenius.net/uploads/1/3/0/6/130604508/7935356.pdf
    • http://www.thematstudionj.com/uploads/1/3/0/6/130605015/zeridi_rifavomel.pdf
    • http://sonnyxyshop.com/uploads/1/3/0/4/130483178/religu.pdf
    • http://plumbingsimivalley.net/uploads/1/3/0/9/130969222/f1dabad4056376.pdf
    • http://proximitydamage.com/uploads/1/3/0/6/130640097/86f88a4e1.pdf
    • http://agence-argonne.fr/uploads/1/3/0/5/130589237/lukiname.pdf
    • http://simmsenterprises.net/uploads/1/3/0/5/130539113/fuwidakibidix.pdf
    • http://creativecustomcontractinginc.com/uploads/1/3/0/9/130969559/modasoviwepil.pdf
    • http://endlessarttattoo.com/uploads/1/3/0/6/130639428/rowomekaxekexodi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c31.bin
9d5b09138af5d243207978b14f0e6f80d5713c755f5161ac80e03d43c9a04f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C31 9112 bytes

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