Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac4bd0b27c39f4f4…

MALICIOUS

PDF

75.9 KB Created: 2021-01-06 01:43:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 0a32790ecf808b9da437896873fbd934 SHA-1: 1792022ef215fae83f87e1c712c44d9ac63622ff SHA-256: ac4bd0b27c39f4f4f2cb3f56ade822f0b6ebce935f314a466616b7b97ccd2d57
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, traffnew.ru, which is likely used to host a malicious payload or redirect to a phishing page. The document body, though heavily obfuscated, contains references that may be used for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/123?utm_term=zeus+percy+jackson+actor PDF link annotation
    • https://cdn.sqhk.co/bajilevone/ggdhjsi/hit_it_fergie_everytime_i_turn_around.pdfIn PDF document text
    • https://goxapumub.weebly.com/uploads/1/3/4/8/134884232/25f621f6b1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420451/normal_5fd9f6d2acf49.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444095/normal_5ff209f8f2e5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456391/normal_5fa62d379ad30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454973/normal_5fe646248e24e.pdfIn PDF document text
    • https://redodire.weebly.com/uploads/1/3/1/4/131408340/mosewugawezewe.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/otTe7hd/buguzarojafedotosebotu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462046/normal_5feaffeb0abef.pdfIn PDF document text
    • https://widunamaki.weebly.com/uploads/1/3/4/8/134886597/4345787.pdfIn PDF document text
    • https://girejegi.weebly.com/uploads/1/3/4/4/134490844/tixan.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/gerisibanifulilezus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jipowumat/christ_college_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/letter_writing_template_ks2_twinkl.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/background_ppt_biologi.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/mulobagozesolukidum.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0A 4928 bytes
SHA-256: 765b299491c2fcf129e8dddc11859b466359f8c62eb127d5e86e0e438324adac
font_01_sfnt_off0000eff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF6 10576 bytes
SHA-256: 3d5afe6bbb64f93a6657fa3bfec8ae3847c4c1923adfeec779448edddcd620fc
font_02_sfnt_off0001143e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1143E 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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