Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df8d40a3879669f…

MALICIOUS

PDF

67.9 KB Created: 2021-01-18 19:15:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d1d0bbb48f1843e0fe3439fde3f75c69 SHA-1: 78afab66ebc27980613de395accdca8a38b3a30a SHA-256: 2df8d40a3879669f686cee229b4183067efdf94db35d54d9096fbf712674bbc4
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest the document is designed to redirect users to malicious content, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/123?utm_term=water+mold+fire+restoration+reviews In PDF document text
    • https://cdn.sqhk.co/jememobak/hghaLof/monkey_shoulder_cocktail_delivery.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402488/normal_5fb2b5a92d362.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476939/normal_5fddae753b312.pdfIn PDF document text
    • https://cdn.sqhk.co/manaruparil/iTFDghx/my_bowling_3d_full_version_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481999/normal_5fad2dd2311bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365621/normal_5f8fcb07326a7.pdfIn PDF document text
    • https://cdn.sqhk.co/pakiwujipubi/g4oiihj/80279961935.pdfIn PDF document text
    • https://cdn.sqhk.co/gogojelawov/dp4jbgg/80812191389.pdfIn PDF document text
    • https://site-1172017.mozfiles.com/files/1172017/motorcraft_auto_parts_catalog.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417024/normal_5fe272a8bd4ee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nefunupu/25262174699.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/86762926270.pdfIn PDF document text
    • http://woxepakaj.epizy.com/58205308002.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/31138157206.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/rent_lease_agreement_forms_alberta.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_off0000cbe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE5 5216 bytes
SHA-256: a764ceb6b38cf6900551f2c82617698e02cd27d10888d31df3f5ecf942b1b5a7
font_01_sfnt_off0000dda6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA6 10904 bytes
SHA-256: 0ef3c94447b9a3cc226557837c924d4a8b6164cdc7850dec334b5663070735a4

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