Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c10cbff5c0ed6f6…

MALICIOUS

PDF

79.7 KB Created: 2021-05-10 04:20:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 164c96fd792966b402289969904a9730 SHA-1: 108865f348769a3474dfafde0d9b62c2531257d5 SHA-256: 2c10cbff5c0ed6f64dfb51ff0a177bcb19d4a6028e1608aee54d18a7490f090c
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 0.9998

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://kuzutuzo.ru/strik?utm_term=the+magicians+alice+e+quentin PDF link annotation
    • https://cdn.sqhk.co/libegavezu/ziiilyM/20151061798.pdfIn PDF document text
    • https://cdn.sqhk.co/jivonotiso/ZieghaF/rdr2_side_quests_chapter_6.pdfIn PDF document text
    • https://cdn.sqhk.co/zusisoko/bjj0ggz/manchester_medicine_non_academic_information_form.pdfIn PDF document text
    • https://cdn.sqhk.co/sofetarunox/ihFiiid/demo_warlock_pve_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410678/normal_604b39cb13d3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502819/normal_6013b1d4838a3.pdfIn PDF document text
    • http://zarepaputome.iblogger.org/how_to_reset_whirlpool_quiet_wash_plus_dishwasher.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496810/normal_5ff3e4d45bbfb.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwuwulu/cw0jghb/wezipezoremikugori.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3792964-ada9-4e39-8196-6cd2ea758e1f/zaxumulozowoxaxeranajugi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07b25532-32de-43d5-a7d1-0e599b70adce/how_to_tell_if_im_an_infj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/909ca64d-f1cc-4370-bde7-30e3ac60b5fa/fukonor.pdfIn PDF document text
    • http://miwofalixi.rf.gd/pakug.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/xfinity_x1_box_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/fowaruvokudulunisofojosu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1056939a-9391-4cb4-b911-97f2518584ad/kuredi.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/novewawadej.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/finos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fe89675-d837-4ee1-b623-e94ac20668d5/venikabunirivisavekonosu.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_off0000f804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF804 5192 bytes
SHA-256: 98fc0bb7bf985d9390930f6680f244e35c1b3965a0d7b71ecdca136bd021ae44
font_01_sfnt_off0001098a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1098A 12268 bytes
SHA-256: f68c1f7ea66a255366ae0e616f83b5adb3ba0a838e8bd4d3537f483d22ca768c

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