Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf76b03e3a69f47…

MALICIOUS

PDF

52.7 KB Created: 2020-03-16 14:15:35 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: fed4c445ca52eb22c433b34d8764fd16 SHA-1: 8ea158d7b408cd1cdcf0f3e4ef9b550dbfc3e5d5 SHA-256: 6bf76b03e3a69f47b164d553f8e2c6263970c1eef30eab80c435fb9c37fefc34
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. These links likely serve to redirect users to malicious websites or phishing pages. The ML classifier also strongly indicated maliciousness, supporting the assessment of a malicious link distribution scheme.

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://rightandleft.net/uploads/1/3/0/4/130483728/130483728.html#lg+sound+bar+connect+to+tv+wireless PDF link annotation
    • http://salonsirena.com/uploads/1/3/0/2/130289693/d08af0d6be.pdfIn PDF document text
    • http://adsl-66-121-174-46.encorp.net/uploads/1/3/0/6/130605212/7554058.pdfIn PDF document text
    • http://doterrafirma.com/uploads/1/3/0/3/130379326/towukuxowuno-zafuzekoxogeza-bizozu.pdfIn PDF document text
    • http://charlieleegeorge.com/uploads/1/3/0/6/130604102/4635a92633.pdfIn PDF document text
    • http://74-123-75-33.mgwnet.com/uploads/1/3/0/5/130547689/1949600.pdfIn PDF document text
    • http://usanewbiology.com/uploads/1/3/0/4/130483142/zupav.pdfIn PDF document text
    • http://dogoody.com/uploads/1/3/0/4/130483631/2406424.pdfIn PDF document text
    • http://fuzzymoon.org/uploads/1/3/0/4/130435821/dagejojad.pdfIn PDF document text
    • http://liz-accounting.com/uploads/1/3/0/8/130813786/9637910.pdfIn PDF document text
    • http://www.jillkrasnerart.com/uploads/1/3/0/7/130775098/6dab61e32e30.pdfIn PDF document text
    • http://imgbasic.com/uploads/1/3/0/6/130621714/28c39.pdfIn PDF document text
    • http://tattletalesboutique.com/uploads/1/3/0/2/130271212/1749405.pdfIn PDF document text
    • http://lyp88.net/uploads/1/3/0/4/130477363/e9f6e649345.pdfIn PDF document text
    • http://www.blinkdesign.co.nz/uploads/1/3/0/6/130604045/fowozegeti_suritaje_xetodobawuwo_vajomaz.pdfIn PDF document text
    • http://nuvisionconstruction.com/uploads/1/3/0/8/130814311/246ae311.pdfIn PDF document text
    • http://tagteamenterprisesllc.com/uploads/1/3/0/7/130775347/34441.pdfIn PDF document text
    • http://opsmobilelearning.com/uploads/1/3/0/3/130379311/xaxofatodaw_gumutugigenu_ninivav_lofitojodalovi.pdfIn PDF document text
    • http://mmalonecelebrantservices.online/uploads/1/3/0/5/130540453/mesuf_gofujifajil_sagefamitefovo.pdfIn PDF document text
    • http://www.myfriendsandfamilyshop.com/uploads/1/3/0/2/130289532/nefolowuki-gofarivutab-lidatobaxo-xudesaxuviroz.pdfIn PDF document text
    • http://www.punkrockdeals.com/uploads/1/3/0/3/130379252/werawi.pdfIn PDF document text
    • http://dev.thecedars.ca/uploads/1/3/0/4/130483583/3907154.pdfIn PDF document text
    • http://caddycapdesigns.com/uploads/1/3/0/8/130874358/binagiwomudujofaruxe.pdfIn PDF document text
    • http://irfa3.net/uploads/1/3/0/9/130969465/4972664.pdfIn PDF document text
    • http://carrfirm.com/uploads/1/3/0/6/130639407/suxokof_jopuj.pdfIn PDF document text
    • http://localprintshop.com/uploads/1/3/0/2/130289668/494bd7beb4009e0.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

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_off0000a2f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F5 8848 bytes
SHA-256: 733078d15ebb2f2a66675294ed3059e7bd3b849aefaa7ff8b112f1229a2eea40

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