Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c0a43d24dbab8de…

MALICIOUS

PDF

64.2 KB Created: 2020-11-20 05:10:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1afc21038d3458b70a60a1b7080d722d SHA-1: bfa2c1df477ba8cb8e02d6a2388cd71d75d4c846 SHA-256: 7c0a43d24dbab8dec52ab46ae45542052e24209a96e2866e44fcab554d847da2
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 0.9997

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://trafftec.ru/strik?utm_term=patron+mutlu+son+istiyor+full+tek+par%25C3%25A7a PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410730/normal_5fb257fe53b44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408188/normal_5f9293f9d5e8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420747/normal_5f9d22f627414.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408976/normal_5fa67a834e8ac.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/liwafo/biology_1_fall_semester_final_exam_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f4b822e-2475-4455-ba84-076bac597493/puredaxumaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e97e170f-e683-4829-ae9a-58b0f0a153ba/33665858574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/405d1c44-653e-4416-88eb-3f0f79e0382b/xudipesajizovirigidedimuk.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/lagu_ceria_j-_rocks_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/monster_of_the_week_monster_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/chr_hansen_holding_annual_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f178db5-49c1-4859-bf22-861d1f23451a/xprivacy_pro_licence_fetcher_apk.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_off0000ba67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA67 5396 bytes
SHA-256: acaf13ddfeaddb06207b668104087b0941a17e2a48fe6c5de876e50c34c3d69c
font_01_sfnt_off0000ccb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB8 11928 bytes
SHA-256: 8c2f93eb667adc8268948fab1cf48e930e69d890c4ef5e3165744cf04dbfe280