Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba85508cb0fa3b7…

MALICIOUS

PDF

38.1 KB Created: 2020-04-15 15:33:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 68b8dd9bd5bbdbc7caf97f9e720ac638 SHA-1: f561899566264055cb98960726aaaa94d875e538 SHA-256: 1ba85508cb0fa3b7de19bedbec3d13da2a9fb9e4e7481c0e287932d3f05f1787
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. One of the embedded URLs is http://shamelesspourspod.com/uploads/1/3/1/6/131607331/131607331.html#vidmate+er+old+version. This suggests the document is designed to redirect users to potentially malicious or unwanted content, possibly for SEO spam or to distribute further malware. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://shamelesspourspod.com/uploads/1/3/1/6/131607331/131607331.html#vidmate+er+old+version PDF link annotation
    • http://pennypapaya.com/uploads/1/3/0/2/130288383/xonitulezadupu_mixuvibuto_zirimikemomabak.pdfIn PDF document text
    • http://paardentaxioverijssel.com/uploads/1/3/0/6/130639959/miforaxitixomurobof.pdfIn PDF document text
    • http://scmfevents.org/uploads/1/3/0/6/130605412/sagazoxazominefuxize.pdfIn PDF document text
    • http://plummerpowermowershop.com/uploads/1/3/1/3/131383949/f07bb83956.pdfIn PDF document text
    • http://cityofoaksintegrative.com/uploads/1/3/0/9/130969114/dojepowo.pdfIn PDF document text
    • http://730yt.com/uploads/1/3/0/7/130776219/57cede730b.pdfIn PDF document text
    • http://sandrawimbish.org/uploads/1/3/0/8/130874260/vadumefelumu_kilujis_liwudoguluwipu.pdfIn PDF document text
    • http://sunnysidesoap.com/uploads/1/3/0/5/130541623/5941399.pdfIn PDF document text
    • http://beautyonbeat.com/uploads/1/3/0/4/130483248/3896823.pdfIn PDF document text
    • http://getyourphill.com/uploads/1/3/0/8/130814115/deritubafiwix_tipaki.pdfIn PDF document text
    • http://civicmic.org/uploads/1/3/0/4/130476396/988bf.pdfIn PDF document text
    • http://sarahdenisart.com/uploads/1/3/0/5/130544132/duzuzipupo.pdfIn PDF document text
    • http://a-pod.net/uploads/1/3/0/4/130435807/8333691.pdfIn PDF document text
    • http://commonwealthcouncil.org/uploads/1/3/0/5/130588858/7b355fb4de.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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
🗂 Part of campaign: flyingowlexhibitions.com 8 samples

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000648a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648A 7736 bytes
SHA-256: 2cd7c8d92d4fa592714b10fd1454ade64aff3ff48478004ebea4e00d180b3a82
font_01_sfnt_off000082c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C0 2600 bytes
SHA-256: 7466f12abaaa7f3061b2eee0fbea2aff938e674d3fe107531bc2e00f9f0dfbcf

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