Malicious PDF — malware analysis report

Static analysis result for SHA-256 75fdc9caf4787d4e…

MALICIOUS

PDF

91.2 KB Created: 2021-02-11 22:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2b36386df05e67152875394ea0351535 SHA-1: bef810f80fcc029e33f07281bc8a7ceea59b91a7 SHA-256: 75fdc9caf4787d4eb4750722f98123a421c8c654b87e438e949ae0413643ac36
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of malicious intent, likely for phishing or malware delivery. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users through a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://seumenha.ru/wix?keyword=free+bingo+bash+chips+facebook PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366033/normal_5fc900e5c3bd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408993/normal_6000cd40af0d1.pdfIn PDF document text
    • https://cdn.sqhk.co/ropobemuma/cdgeohc/beautyplus_magical_camera_2016.pdfIn PDF document text
    • https://merelakududeva.weebly.com/uploads/1/3/2/3/132303156/cb1ab6c4f.pdfIn PDF document text
    • http://podjem2.club/bogazoduxe1rm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423133/normal_6005b067a7536.pdfIn PDF document text
    • https://gotowixupin.weebly.com/uploads/1/3/4/3/134393593/lukabopuwibefe.pdfIn PDF document text
    • https://ditoleruv.weebly.com/uploads/1/3/5/3/135345680/80d5ad0d76671.pdfIn PDF document text
    • https://butopejejix.weebly.com/uploads/1/3/2/8/132814220/zivawunugodu-dilogavajarigob-xilutixikel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/sikuva/faxosifusav.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/mimazuzasekepe.pdfIn PDF document text
    • http://dupetomumipur.rf.gd/gefese.pdfIn PDF document text
    • http://jepogedepujadul.rf.gd/marc_fisher_le_millionnaire_tome_2.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/21043541546.pdfIn PDF document text
    • http://zoxutuperovizo.epizy.com/venaseposikab.pdfIn PDF document text
    • http://vaduxovogemuke.epizy.com/33532745338.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/16503720261.pdfIn PDF document text
    • http://zijodere.rf.gd/81145122518.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B3 5112 bytes
SHA-256: 595c9e3e15dd19c77ac0703f39a2a17e33a7b2eb91c367869adeca15915e0533
font_01_sfnt_off0000fafc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAFC 2316 bytes
SHA-256: 5b91c186c0d2506cbb1932d417fe2e40edf424c68f696d43443a27f8f7fee313
font_02_sfnt_off000104ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104EA 18992 bytes
SHA-256: 95c3ec8c31ce22950a03a8f56d34f86350eee68f7abaa04c6fe56c9c912b4cad
font_03_sfnt_off00013a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A7D 16344 bytes
SHA-256: 347d7af464373407f9ff2c498be774ddb16f93f10e640c2479320bd93bf3fbfe
font_04_sfnt_off00015069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15069 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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