Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ca40ecde192338c…

MALICIOUS

PDF

45.9 KB Created: 2020-03-21 02:41:33 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 6bc6587cd4b99dc6b6d2cfeadf8820d5 SHA-1: 047736e50c806733e822224854a6b958870a8030 SHA-256: 1ca40ecde192338c8fdd0f60b7769323ed725a72e0a323bdf56df660b88d1197
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common technique for SEO poisoning or driving traffic to malicious sites. The document body mentions 'Xbox 360 lego star wars 3 the clone wars cheat codes', suggesting a lure to attract users to click on the embedded URLs. The primary URL identified is http://claybon.shop/uploads/1/3/0/5/130539247/130539247.html#xbox+360+lego+star+wars+3+the+clone+wars+cheat+codes, which likely leads to a phishing or malware distribution page.

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://claybon.shop/uploads/1/3/0/5/130539247/130539247.html#xbox+360+lego+star+wars+3+the+clone+wars+cheat+codes PDF link annotation
    • http://dinoslnk.com/uploads/1/3/0/6/130620662/7386048.pdfIn PDF document text
    • http://skratchnsnif.shop/uploads/1/3/0/7/130739986/magozuxolof_vakulupo.pdfIn PDF document text
    • http://mooreintconsulting.com/uploads/1/3/0/4/130488741/lopatedodoxos.pdfIn PDF document text
    • http://www.mountbakerpreschool.shop/uploads/1/3/0/7/130739533/juzakaka.pdfIn PDF document text
    • http://collegefundingmagician.com/uploads/1/3/0/8/130873732/3460803.pdfIn PDF document text
    • http://gogreenofficespace.com/uploads/1/3/0/7/130739633/6cb1e337f487.pdfIn PDF document text
    • http://trackingeasy.org/uploads/1/3/0/5/130539757/tiwitepalos.pdfIn PDF document text
    • http://www.clearshoressoapecompany.com/uploads/1/3/0/5/130550936/zajisifone_migoxalepazot_gofelomiwosuluf_jorabo.pdfIn PDF document text
    • http://www.danielatorrez.com/uploads/1/3/0/9/130969375/biwanesug.pdfIn PDF document text
    • http://cornellcraigue.com/uploads/1/3/0/7/130776230/devepo_vexidiwidani_zexalariwiz.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000896d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x896D 9384 bytes
SHA-256: ce767eab545bd45c8241d24bfe36c1be31356121aff091061c99d47e39f15bb9