Malicious PDF — malware analysis report

Static analysis result for SHA-256 40b98d8362a50d56…

MALICIOUS

PDF

34.4 KB Created: 2020-05-15 23:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 44a0f330e63463d7706fe5d4a0fd7397 SHA-1: 22c850ad73be4219d47936041397d2ded369491d SHA-256: 40b98d8362a50d56c04b9b07bd0a94eebbafb44f5a67ce81ba3c3dd1a2992fc7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The embedded URLs and the document body content, which includes 'Ele beauty camera apkpure', indicate a lure to potentially malicious content or phishing sites. No scripts were extracted from this sample, limiting the analysis of direct execution or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://skaosg.net/uploads/1/3/0/6/130603944/130603944.html#ele+beauty+camera+apkpure PDF link annotation
    • http://actofdwelling.org/uploads/1/3/1/4/131453592/2cbc073.pdfIn PDF document text
    • http://mariaflorstore.com/uploads/1/3/1/3/131378990/soxope_munegukerudo_logejogumukidet_niliv.pdfIn PDF document text
    • http://morganlwebster.com/uploads/1/3/0/2/130272976/7376824.pdfIn PDF document text
    • http://apexfrontier.com/uploads/1/3/1/8/131871449/c042a1cb7bf027.pdfIn PDF document text
    • http://allbrandscorp.com/uploads/1/3/0/5/130589166/ridigabunozodu_taluwitegixeza_dorawefew.pdfIn PDF document text
    • http://instastore.business/uploads/1/3/0/7/130775593/d8db7446.pdfIn PDF document text
    • http://hawkecreations.online/uploads/1/3/1/1/131163695/490543.pdfIn PDF document text
    • http://autonomouswriting.com/uploads/1/3/0/5/130551187/dozejem_gifopemixanugo.pdfIn PDF document text
    • http://hamptonroadspartycharacters.com/uploads/1/3/0/9/130969335/temusutunefivupofowe.pdfIn PDF document text
    • http://loveandlighthappyhealing.com/uploads/1/3/0/6/130621691/gomoxefapagoxes_wojuturanafa_kewenudij.pdfIn PDF document text
    • http://nevermoreacres.com/uploads/1/3/0/3/130323390/vamupulukugido.pdfIn PDF document text
    • http://dynamic-mechanical-services.com/uploads/1/3/0/2/130274338/zunixeguvekazebeza.pdfIn PDF document text
    • http://boltkarloff.com/uploads/1/3/0/8/130874167/bcbc69afc1.pdfIn PDF document text
    • http://doisongmc.com/uploads/1/3/0/2/130291646/tutabemabunazo.pdfIn PDF document text
    • http://springfieldmolimo.com/uploads/1/3/0/5/130543472/kemoxolivenazenek.pdfIn PDF document text
    • http://adopteeanswers.org/uploads/1/3/1/4/131437561/ef57f3ec3d.pdfIn PDF document text
    • http://editionstiazo.com/uploads/1/3/0/4/130435547/lojipikuvux.pdfIn PDF document text
    • http://photomat-mieten.de/uploads/1/3/0/4/130483338/lipidenikozem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

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_off00005b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B11 10216 bytes
SHA-256: 52bdd5028575adf54912fb8aba7e5e548c6d6f56a6201c42ba72af118eacf608

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