Malicious PDF — malware analysis report

Static analysis result for SHA-256 865bfe094791a096…

MALICIOUS

PDF

78.8 KB Created: 2020-12-17 20:11:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 591483351d860f2ad946158bad30507f SHA-1: 9153f46e56765bb60c89752d9395a253f0db154f SHA-256: 865bfe094791a09661b30f96f0d0cead7c545d22033250abf3ed19840ca16fbb
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it redirects to known malicious infrastructure. The embedded URL `https://traffking.ru/aws?utm_term=crystal+report+13.+0+2` is identified as a malicious redirector. ClamAV also detected this file as `Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0`. The primary attack pattern is likely phishing or malware delivery via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffking.ru/aws?utm_term=crystal+report+13.+0+2 In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://static1.squarespace.com/static/5fc0e9eb3398ff75152e2002/t/5fcaff40da45e86cca9b6271/1607139136227/wunetawedowedelanajuj.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57d743dfdd95b60f42251/t/5fd70138b1c3f31c7a984423/1607926073078/mewawigidibewosiluxaguvi.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/list_of_important_days_in.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/19639795441.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/lab_table_minecraft.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/noodle_st_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/illustrator_template_scientific_poster.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/gipiregejezudozorukegu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3703b8ef7301f8b20f9e5/t/5fc816f013f8d93bf2f6534c/1606948593639/learn_drawing_online_step_by_step.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1619768612547ed61873d/t/5fc7fd9a3c4d2a09b19be198/1606942110348/74330572385.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/busavorog.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc158a49698b02c7f23b694/t/5fc5ba2918e72e5fdb9dd9eb/1606793775102/standard_handbook_for_civil_engineers_4th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a396daa8-59c5-419f-a9c3-19afb5fccf8c/discernimiento_que_es.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://www.gnu.org/licenses/gpl.htmlIn 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_off0000c2b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2B1 2948 bytes
SHA-256: 6193ae5e1ba9309bf1242d6e0a406601078bce13db99ffdf9b0cff6bbb146ce8
font_01_sfnt_off0000cd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD36 5344 bytes
SHA-256: 8a0330b90b9e19eff123813573780de15c0afa8cafdafe4026ff6a191f5ac8d1
font_02_sfnt_off0000df72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF72 7508 bytes
SHA-256: 9d52bbe4912e80c09c63333ac02d011a8d48b1abae0a499f6dedc7201df134c1
font_03_sfnt_off0000f396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF396 10868 bytes
SHA-256: 1736fb439997856f36fde13ea5ac03e4adcb9897ea432c3068fc3269969e724b
font_04_sfnt_off00011843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11843 16224 bytes
SHA-256: 1c17671fdb71884e9f81320ad22bd52d44677ebfe0e89e1da73fe2eadff84207

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