Malicious PDF — malware analysis report

Static analysis result for SHA-256 c810e75c62ccff0b…

MALICIOUS

PDF

71.0 KB Created: 2021-02-20 22:47:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 11a234bf4bf6384e4fc98abf1ed6c0e2 SHA-1: 9f7ce32ec632eb06ac030aafb6eda9ca87521375 SHA-256: c810e75c62ccff0bfa28a4367ce53f579bd42babab7ec23a28e6d2cf786aae7d
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'jottigo.ru' suggests the document is designed to redirect users to a potentially harmful website. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt, likely using a social engineering lure.

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
  • 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://jottigo.ru/wix?keyword=letter+from+birmingham+jail+rhetorical+analysis+prezi PDF link annotation
    • https://cdn.sqhk.co/bujavenizake/jgWjbp9/42527700303.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391634/normal_5fd2c8a1d00e0.pdfIn PDF document text
    • http://interstart.online/16942674617iyp8m.pdfIn PDF document text
    • http://kieverts.xyz/kopebovozojisuxakanol2fa8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417029/normal_5ff22035a7932.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460972/normal_5ff2115a66085.pdfIn PDF document text
    • https://cdn.sqhk.co/kujotukil/ajbgjhf/93471274680.pdfIn PDF document text
    • https://cdn.sqhk.co/somufegojaru/zlBjgTg/baby_sleep_sounds_ocean.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392661/normal_5fe52f6c7bda6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463538/normal_60120a426faa0.pdfIn PDF document text
    • http://nesobaka3.xyz/mabisedudigewavoroditumit5beh0.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/hd92jam/cedar_swing_sets_near_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498376/normal_5fcf4561c7e82.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464739/normal_5fc7f97b09c61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478125/normal_601b4971e4f53.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418365/normal_5fc73db2e1203.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/wunojipu/gepugigudavowekiru.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_off0000d7ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FF 5740 bytes
SHA-256: 22fc96a7b5c2c6b3f022aa0ecd090520853a40d6e17384e7eb0593e7496b015e
font_01_sfnt_off0000eb7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB7E 10196 bytes
SHA-256: c1ada4221a016d3ccab61b1e352e84adc3741b5357f25544ced6215ec6bdec9b

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