Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aaa192669211358…

MALICIOUS

PDF

128.3 KB Created: 2020-12-26 13:59:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d39ad2459a00c136a2ab5dc3fe9d60f6 SHA-1: bbf3f2459340f63b569452bbdc87eca70e497070 SHA-256: 4aaa192669211358af9fbd76ae28ba20a1b7d73b6f41853dc93efe97e1cc172a
222 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting the document is designed to lead users to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ggtraff.ru/aws?utm_term=animal+crossing+new+leaf+rare+fish+guide In PDF document text
    • https://xisaluzesa.weebly.com/uploads/1/3/4/6/134602292/tezuzegomelawe_rovapexe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383300/normal_5fb5e547535dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372972/normal_5f949554004f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f89f9015bb15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449783/normal_5fa2ae735a658.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489404/normal_5fc5fe1ed4b5e.pdfIn PDF document text
    • https://kowevufewes.weebly.com/uploads/1/3/4/3/134388306/tobazitaxewena-woralapa-powulinore-vikewevu.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/75kgj1F/warriors_of_kingdom_revenge_fight_mod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393180/normal_5fc6b3c59e56a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467032/normal_5fc79ac6e70a3.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
    • https://uploads.strikinglycdn.com/files/1f0fe65f-e84a-4b6c-acc0-138b4b753071/49582602631.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/wiluzibegexunokixeti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/999bdf9c-9250-4417-98dc-6c9629c0d337/98207421414.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ad35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AD35 5316 bytes
SHA-256: 11f9a7fa27f8c9ee28f598c50d9081a86768c4e26eb7b9cfee851ccd998fa986
font_01_sfnt_off0001bf0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BF0D 11504 bytes
SHA-256: 18fefb37de1d4364b9fbf66a75eb275c746d3b6d68c55f75cff0c303d2210e30
font_02_sfnt_off0001e596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E596 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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