Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a4238fdb0cae89…

MALICIOUS

PDF

75.6 KB Created: 2021-02-02 07:38:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 00b80a2c0edae371b237e18cf6caa266 SHA-1: 4949f5a889a93b5db9a918f6d390d460a9f58d05 SHA-256: d0a4238fdb0cae895efe2d187cc562e4ca29ee550f32c3ec7e364250ea03610a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_LINK_FARM' suggests the document contains a large number of external links, likely to phishing or malware sites, disguised as an annual report. While no scripts were explicitly extracted, the PDF structure and numerous embedded URLs point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://maypoin.ru/aws?utm_term=hamborner+reit+annual+report PDF link annotation
    • http://itravelimpressions.com/karunungang_bayan_worksheet_with_answers5kx91.pdfIn PDF document text
    • http://dress-russia.ru/shark_ion_robot_r87_vs_roomba_6759pnub.pdfIn PDF document text
    • https://wilalupesakugos.weebly.com/uploads/1/3/4/2/134235894/zizotupi.pdfIn PDF document text
    • http://repair-kompov.ru/31737707541p2t3t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409797/normal_5fcdf8e4d37c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365583/normal_5fe4a8d865f9b.pdfIn PDF document text
    • http://jasapremium.xyz/660381732661nvqi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418987/normal_6014c08db81cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464527/normal_5fe94e0291c73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485578/normal_5fe650e85e6a9.pdfIn PDF document text
    • http://front-glass.space/6151667713hnwcl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380392/normal_6003af3de7096.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449392/normal_5fdd64fee9744.pdfIn PDF document text
    • http://inostrana.com/xolipn3rf8.pdfIn PDF document text
    • http://8gusevshop.space/1275783886ey011.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426270/normal_5fdf714cb3a92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456676/normal_6017ad860c372.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB67 4768 bytes
SHA-256: 767593806f747d7c2cee62458b2c1b2fe3ae3f56109167e6d5f3ef884aaf6841
font_01_sfnt_off0000eb73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB73 11304 bytes
SHA-256: 39c9fd7a1025ad9a2aff1f5d332630edce5beb0fa634d9481abdb97ce1e525e5
font_02_sfnt_off000111b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111B4 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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