Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7d7f96f1ebecd7…

MALICIOUS

PDF

35.2 KB Created: 2020-05-15 17:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 54ca3230c287ed7ba09ed546716ab915 SHA-1: 428b5b4b8648d9f381d3a244a6ce267d1e0ef805 SHA-256: ee7d7f96f1ebecd74f58fb3049c4bf3901b901a4dd92d2a8cf0f7ef9229c83d7
96 Risk Score

Malware Insights

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

The PDF file 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 a method to distribute malicious content across multiple sites. The embedded URL also points to an external HTML file. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://miccol.org/uploads/1/3/1/0/131070890/131070890.html#rx.+android.+schedulers.+androidschedulers+not+found PDF link annotation
    • http://jennettedemoura.com/uploads/1/3/1/4/131408930/marow.pdfIn PDF document text
    • http://paxstay.com/uploads/1/3/0/2/130289738/kegurilojutivaze.pdfIn PDF document text
    • http://concilio.org/uploads/1/3/1/4/131407537/7888116.pdfIn PDF document text
    • http://detroitskiteam.com/uploads/1/3/0/2/130287896/c3c45.pdfIn PDF document text
    • http://kawarthamaintenance.com/uploads/1/3/1/3/131382982/87f9b.pdfIn PDF document text
    • http://colescreations.net/uploads/1/3/0/3/130379133/ratidodaziwa_kimugumi_mosifaxif_rotifedegezonu.pdfIn PDF document text
    • http://japtenterprisesllc.com/uploads/1/3/0/6/130639241/1e520c6cbeabbf.pdfIn PDF document text
    • http://stjoepigskin.com/uploads/1/3/1/3/131381204/lujavamiw.pdfIn PDF document text
    • http://generaloilfieldservices.com/uploads/1/3/0/4/130476083/damap_mitodanewi_raniwudeje_lalidagopug.pdfIn PDF document text
    • http://joyrebustesportfolio.com/uploads/1/3/0/6/130640095/3327080.pdfIn PDF document text
    • http://computer-technology.org/uploads/1/3/0/7/130740207/79106431c1df8.pdfIn PDF document text
    • http://usa-aauto.com/uploads/1/3/1/4/131454683/jilasolovid-jekelofeximiko-wijutaj-nepobaki.pdfIn PDF document text
    • http://vbjags.com/uploads/1/3/1/3/131379228/b0cff7501f.pdfIn PDF document text
    • http://adcserv.com/uploads/1/3/0/6/130639583/vuses.pdfIn PDF document text
    • http://gonetva.com/uploads/1/3/0/6/130620320/1319105.pdfIn PDF document text
    • http://sapphire-lens-photography.com/uploads/1/3/0/5/130551211/1ca80c51afc.pdfIn PDF document text
    • http://websitepitstop.com/uploads/1/3/0/9/130969748/783581.pdfIn PDF document text
    • http://lukescholtes.com/uploads/1/3/0/7/130776085/jidedorimesevadob.pdfIn PDF document text
    • http://chessmatchonthepitch.com/uploads/1/3/0/2/130289397/mejuruduvojabem_rugimonesun_bamedusilat_zenelenivivawa.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 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_off00005be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE2 10800 bytes
SHA-256: ee42daae076bb369e37025567e99444f2c40e674dcac88fd8ec0ea936fa245db

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