Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0150510696fd421…

MALICIOUS

PDF

67.8 KB Created: 2020-11-20 03:22:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c8d869801f3956056373394a0aa50760 SHA-1: 53d67c193207c960ccf6dcd286e492921fe8fbac SHA-256: b0150510696fd4215cb3e6f99413ac6d9d0c0620956078e5d95137af7d6c2170
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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://traffmen.ru/aws?utm_term=christian+worship+powerpoint+templates+free In PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/3257372.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383925/normal_5f8c9a33c9fab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495058/normal_5fb2d74549dc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416513/normal_5fa75f1decf38.pdfIn PDF document text
    • https://bulumivivowusip.weebly.com/uploads/1/3/4/6/134667270/jesesulap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad40f7b9-278e-4688-8ebd-19a602e053be/2490130532.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1da35cb9-3e44-4346-a96a-c34f6b718835/lemexoko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdf125be-4bf5-4ac3-8647-3cc488cf6ff7/pokemon_in_pearl.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/mw2_fov_changer_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/066bf72b-75f6-42cf-84d9-d81c808c7958/54066171824.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/kubosonowinaxezajukifu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC6 5140 bytes
SHA-256: 51910f5280ad5f6c3d14f0c893503b64cd583c510537cab1a1dc922e6bbed86e
font_01_sfnt_off0000de24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE24 10952 bytes
SHA-256: aaf165ff4130a5afa4dbc529ad155baa067c55fff8c2ed8f3041a75d406a0ba2