Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb1222d8249139af…

MALICIOUS

PDF

39.7 KB Created: 2020-03-24 12:21:49 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 56e77e13ccc9ebc9be68a0a43aab1a46 SHA-1: bf21facc4b82f05c1e7b6b55e1836bd339ed7d5d SHA-256: eb1222d8249139aff95bb6acd9472d7fa088a7c7beef4fbccc4bf7011fb3d525
136 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. The document body mentions 'bootable usb ntfs or fat32', suggesting a lure to trick users into visiting these linked pages. The PDF_SEO_LINK_FARM heuristic indicates a deliberate attempt to create a link farm, likely for SEO manipulation or to host malicious content across many domains. No scripts were extracted from this sample.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://djsacademy.com/uploads/1/3/0/5/130588380/130588380.html#bootable+usb+ntfs+or+fat32 PDF link annotation
    • http://merkabaone.com/uploads/1/3/0/7/130776037/zivijomedulebi_vamab.pdfIn PDF document text
    • http://myafricanloveseries.com/uploads/1/3/0/5/130550697/ridugiravix.pdfIn PDF document text
    • http://anthonyolvera.com/uploads/1/3/0/9/130969972/7115599.pdfIn PDF document text
    • http://workplaemassagetherapy.com/uploads/1/3/0/3/130323293/dc1689.pdfIn PDF document text
    • http://www.jefferson-umc.org/uploads/1/3/0/5/130588505/5ea4753237.pdfIn PDF document text
    • http://affordablegeneralcontractorvirginia.com/uploads/1/3/0/6/130640092/nijipakupepa.pdfIn PDF document text
    • http://cheezumconstruction.com/uploads/1/3/0/2/130288594/zixuxoru.pdfIn PDF document text
    • http://furpawspetsalon.com/uploads/1/3/0/8/130814225/dbb26.pdfIn PDF document text
    • http://cpanel.susanhilllong.com/uploads/1/3/0/3/130313024/mezuw.pdfIn PDF document text
    • http://sirenalpha.com/uploads/1/3/0/2/130288511/pipatunobusaxe.pdfIn PDF document text
    • http://property-claim-expert.com/uploads/1/3/0/5/130588705/19e2d34acb5a0.pdfIn PDF document text
    • http://moscowunited.org/uploads/1/3/0/5/130539678/64c6bb110c706.pdfIn PDF document text
    • http://desktoys.store/uploads/1/3/0/8/130874049/galozuniwisojumej.pdfIn PDF document text
    • http://www.mobileleadershipseries.com/uploads/1/3/0/6/130621873/bidiwofupugagon.pdfIn PDF document text
    • http://mijnsnackbewust.nl/uploads/1/3/0/6/130604585/9683948.pdfIn PDF document text
    • http://drleibowitz.nyc/uploads/1/3/0/8/130873712/e7994a843eeae.pdfIn PDF document text
    • http://pipesinaparka.com/uploads/1/3/0/5/130551554/681445f125494c.pdfIn PDF document text
    • http://paulkleevencontracting.com/uploads/1/3/0/5/130550781/edb00411c.pdfIn PDF document text
    • http://avilabankruptcylaw.com/uploads/1/3/0/7/130740190/vebapisiwigis_xefajedumirukuf.pdfIn PDF document text
    • http://sfa-society.org/uploads/1/3/0/2/130287915/gutitejorijidobe.pdfIn PDF document text
    • http://aninnocentvictim.com/uploads/1/3/0/3/130323355/befupodikaxen.pdfIn PDF document text
    • http://www.storyweaverconsulting.com/uploads/1/3/0/2/130291769/2171005.pdfIn PDF document text
    • http://screencircus.com/uploads/1/3/0/5/130542813/3674671.pdfIn PDF document text
    • http://novo.wtslo.com/uploads/1/3/0/3/130323750/0d620d9f908e.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 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_off000073e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E8 7440 bytes
SHA-256: 6eaedbe961b2d7f1dfd998cf31ce3550f4bc8c642be1d0ea461e6d8d4fc2c7d5

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