Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c0eb8df1d9fe5b…

MALICIOUS

PDF

73.3 KB Created: 2021-03-23 16:54:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0699c49435802cb16751b4fdeb2b1398 SHA-1: 10c968deb3018be367590620a3a44dfdfda1ebac SHA-256: e6c0eb8df1d9fe5bf91494bed61c9498d2ac775aa3fbf8cc1758a16e23589744
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/strik?utm_term=weekly+homework+sheet+q3+3 PDF link annotation
    • https://kexowepapu.weebly.com/uploads/1/3/2/8/132815076/312809.pdfIn PDF document text
    • https://podetixado.weebly.com/uploads/1/3/0/7/130739559/takuwudesuduwipag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408858/normal_5fe931caeaa2c.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/rVMdWgh/game_crazy_rush_io.pdfIn PDF document text
    • https://cdn.sqhk.co/zidomirit/iRgtElC/offroad_driving_3d_android_games.pdfIn PDF document text
    • https://cdn.sqhk.co/lewulula/fzZibAk/path_through_the_forest_clifford_t_ward.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470016/normal_6055b84c4d325.pdfIn PDF document text
    • https://viremekim.weebly.com/uploads/1/3/1/4/131407965/vudene.pdfIn PDF document text
    • https://jupojunidukeze.weebly.com/uploads/1/3/4/0/134012404/8010494.pdfIn PDF document text
    • https://ketevifut.weebly.com/uploads/1/3/1/4/131453005/6380494.pdfIn PDF document text
    • https://dosedupuwosiwoz.weebly.com/uploads/1/3/0/7/130776272/ea520c57f.pdfIn PDF document text
    • https://lopodegif.weebly.com/uploads/1/3/2/6/132695694/bobet_dilitazasolezur_mowez_dusabemu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499995/normal_6040f697d5650.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://uploads.strikinglycdn.com/files/aefee815-37fc-4f01-9950-9faf78bcefe2/tactics_ogre_let_us_cling_together_tips.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/wizard_of_legend_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/48096331696.pdfIn PDF document text
    • https://s3.amazonaws.com/kotidox/what_are_the_rings_inside_of_a_tree_trunk_called.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e5b7c0f-90d5-440b-a01f-ff70be05e91c/81808110422.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/hazardous_waste_guidelines_ontario.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd7d496f-f96d-454f-8e50-0c5ba48654df/1_8th_inch_graph_paper.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_off0000d5d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D5 4912 bytes
SHA-256: 20f1140d663649c8ea1f65617adf7ddd93964f6d1526fb0d9e6e700d4b386890
font_01_sfnt_off0000e6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AC 10376 bytes
SHA-256: 55fed6a86d9194a0e37320eea8d88debbbb88a026d959517e763087c6955e2b9
font_02_sfnt_off000109ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109FF 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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