Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d7a3000ea26b879…

MALICIOUS

PDF

80.6 KB Created: 2021-03-10 12:26:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ff21c1729eaaedcf7397c8f73fab12dd SHA-1: 15fb9ceafe5343f7fe5f0c74968819aa04f919a1 SHA-256: 7d7a3000ea26b8794c2cfe81738e0e6d04f064a6d7395c9ade098788d936f5bf
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/123?utm_term=ghana+calendar+2019+with+holidays+pdf PDF link annotation
    • https://cdn.sqhk.co/janezewufaj/tgejfja/colonizer_meaning_synonym.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488090/normal_603031ece0844.pdfIn PDF document text
    • https://cdn.sqhk.co/negolura/jcjdiel/safeway_delivery_pick_up.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495241/normal_6017336fc8055.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384325/normal_6002834ab7998.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385847/normal_603b5fff8d937.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373509/normal_5fd3511c1c5b0.pdfIn PDF document text
    • https://cdn.sqhk.co/mudebijutene/ibN7xgh/reverse_story_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406166/normal_6009eb95760b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426944/normal_6022d1ed6f40a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387050/normal_6043ea1915057.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/0e75c118-7386-4ba2-ae45-347fe67482b2/87347964810.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/75860874416.pdfIn PDF document text
    • http://nobelajojobe.rf.gd/soporuwubupakezulasesu.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/rule_utilitarianism.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bf87331-f89a-40ff-9ad5-ffc40c0fdeaf/canon_ds126_181.pdfIn PDF document text
    • http://karedewig.epizy.com/55220904433.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE540 2900 bytes
SHA-256: 10a07fc969e6c8cf41398fcfefa625e426b29a45b33f3716d0886db1405c0d2a
font_01_sfnt_off0000ef83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF83 5948 bytes
SHA-256: 9cb7544bb76176004bc3d1e8164558b7bbba1f2e862b80bacbb519cfb2d12523
font_02_sfnt_off000103cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103CB 2292 bytes
SHA-256: 904588aed0987a99af5d8ca239364e36acb4b993f847a710ad2ee89eaaba15db
font_03_sfnt_off00010e2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2C 11240 bytes
SHA-256: 54b13f85afdd8d6f14d1677b8acf97fafc84837adb3b479278e1a6688d2c9c98