Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0c1066fa401d35…

MALICIOUS

PDF

39.4 KB Created: 2020-04-10 03:16:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: c67cb858e6f4aa4c3a36cb265d78df01 SHA-1: abe64aa046a7ddc101a0c89b69494270fe76035e SHA-256: ab0c1066fa401d35d9b2607fdaf8855d194a33f367fe8866ffd1fe05d7bf8f0c
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566 Phishing

The PDF contains a fake CAPTCHA heuristic, indicating a social engineering attempt to trick the user into interacting with the document. It also contains a large number of external links, many pointing to other PDF files, suggesting a link farm or redirection mechanism. The primary URL http://leadgenlogix.net/uploads/1/3/0/2/130288753/130288753.html#swansoft+cnc+simulator+latest+version appears to be the initial lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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://leadgenlogix.net/uploads/1/3/0/2/130288753/130288753.html#swansoft+cnc+simulator+latest+version PDF link annotation
    • http://thehouseofkefa.com/uploads/1/3/0/4/130436306/kepow.pdfIn PDF document text
    • http://greatelephantproject.org/uploads/1/3/0/2/130291527/6963470.pdfIn PDF document text
    • http://royal-honeys.com/uploads/1/3/0/5/130547659/401c832feac8c3.pdfIn PDF document text
    • http://benchmarktrainingfacility.com/uploads/1/3/0/2/130289426/a8271ef27b0a4a.pdfIn PDF document text
    • http://hotlavaflyco.com/uploads/1/3/0/5/130539820/8381026.pdfIn PDF document text
    • http://dancedynamicsmemphis.com/uploads/1/3/0/6/130621896/mujarulogato-gitun-wekodajuwoxuzew-luzixilek.pdfIn PDF document text
    • http://lirba.net/uploads/1/3/0/9/130969011/pejaxuvadovu-bitemuwo-wigodejonedoz-vakug.pdfIn PDF document text
    • http://townandcountrypainters.com/uploads/1/3/0/3/130313333/wefizazuxiwikim_zokukawaxa_nesamupegevi.pdfIn PDF document text
    • http://fullmoon-powermojo.com/uploads/1/3/0/2/130288397/934448779bebe67.pdfIn PDF document text
    • http://rightcaronline.com/uploads/1/3/0/5/130539350/90b37f06b15d0.pdfIn PDF document text
    • http://epsiloncommand.com/uploads/1/3/0/3/130323255/fiwin.pdfIn PDF document text
    • http://tubtechllc.com/uploads/1/3/0/7/130739158/juniloja.pdfIn PDF document text
    • http://cosmimata.com/uploads/1/3/0/5/130590191/watoperasevu.pdfIn PDF document text
    • http://saintalbansbrentwood.org/uploads/1/3/1/3/131380341/1112091.pdfIn PDF document text
    • http://veronkaoskar.com/uploads/1/3/0/2/130289339/bakiruz.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_off0000725a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725A 7732 bytes
SHA-256: 5870c362d95ece43a4306202ae9a2fbee845eee875d060985258e41c1b9d037c

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