Malicious PDF — malware analysis report

Static analysis result for SHA-256 66e69a9054c13822…

MALICIOUS

PDF

78.6 KB Created: 2021-06-10 09:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd564b2ceee6d12423c138b3791d2fb6 SHA-1: c3c0811dd9cafb6aa3e1f5b3013863439657d197 SHA-256: 66e69a9054c13822b620ca7ebe57bc0a2041e565771fb2be1d5f321eeb4bd61d
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for link farms or phishing sites, and is flagged by ClamAV as a phishing trojan. The ML classifier also strongly indicates maliciousness. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic suggest an attempt to direct users to malicious or deceptive content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://garglob.ru/pbw?utm_term=blue+streak+full+movie+in+english
    • https://cdn-cms.f-static.net/uploads/4366665/normal_605dade7256b4.pdf
    • https://static.s123-cdn-static.com/uploads/4471948/normal_60048eb168295.pdf
    • https://cdn-cms.f-static.net/uploads/4500893/normal_602b131e91a11.pdf
    • https://cdn-cms.f-static.net/uploads/4375087/normal_600e047c45c38.pdf
    • https://gawubodukajine.weebly.com/uploads/1/3/0/9/130969599/vewakimagakizugoni.pdf
    • https://cdn-cms.f-static.net/uploads/4484355/normal_602091a8abef7.pdf
    • https://cdn-cms.f-static.net/uploads/4459321/normal_60c12f662f955.pdf
    • https://gozekukapitob.weebly.com/uploads/1/3/4/4/134443516/damijosutut-turukenafolidum.pdf
    • https://static.s123-cdn-static-d.com/uploads/4471236/normal_60b555ea7ecf4.pdf
    • https://static.s123-cdn-static.com/uploads/4477369/normal_6004955e25791.pdf
    • https://gifezimudafero.weebly.com/uploads/1/3/4/3/134312010/lidusulov.pdf
    • https://cdn-cms.f-static.net/uploads/4491159/normal_603a198b28e67.pdf
    • https://lefakapuwowe.weebly.com/uploads/1/3/4/3/134353253/7420180.pdf
    • https://static.s123-cdn-static.com/uploads/4455660/normal_5fec8c3e43d5a.pdf
    • https://cdn-cms.f-static.net/uploads/4379487/normal_604bb25ca8dde.pdf
    • https://cdn-cms.f-static.net/uploads/4476577/normal_606e20c254224.pdf
    • https://cdn-cms.f-static.net/uploads/4372967/normal_6023a68c05f42.pdf
    • https://cdn-cms.f-static.net/uploads/4408991/normal_60421d841165e.pdf
    • https://koreperuk.weebly.com/uploads/1/3/2/6/132680900/421c616a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/af72e7f3-f9da-4e9f-b222-419cc405c5e6/dekozijimuwi.pdf
    • http://jesababa.pbworks.com/f/57051225860.pdf
    • https://uploads.strikinglycdn.com/files/23e1a676-0975-4d9a-9152-bd5c1a42adef/best_planners_for_2021_with_budget.pdf
    • http://tujedet.pbworks.com/w/file/fetch/144548619/komeg.pdf
    • http://daridameku.pbworks.com/f/litezaxavifuw.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7fc.bin
ebd1cdd5608ee098ffd4fa165ce2f9f8c72d9d99fce441d3bc414466548e1a73		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7FC 5236 bytes
font_01_sfnt_off0000f9a8.bin
6e6b6ebd01c14c1b1b5cc3b96e84b7674b5b716c65e1aece358d5d065cfb1528		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A8 10848 bytes
font_02_sfnt_off00011ed6.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED6 4324 bytes

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