Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a2eba4ecb07bab…

MALICIOUS

PDF

83.1 KB Created: 2021-04-17 07:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af1d0e960d04d43ea3a04d3c4d6dae17 SHA-1: b4999ac8bc8ae908a74a6d6760fabb5161358f62 SHA-256: e5a2eba4ecb07bab1199657578ffc747b70df7af49a31ca1bd3d25fd1b2bc9dc
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, many of which are to potentially malicious domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, contains references to 'Popcorn kingsley sheet music' and 'wkhtmltopdf', indicating a lure to a website for potentially malicious content. No scripts were extracted, but the extensive use of external links points to a drive-by download or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/strik?utm_term=popcorn+kingsley+sheet+music
    • https://cdn.sqhk.co/lisupixiwe/4geioU5/idle_heroes_redeem_codes_2020_newshungama._com.pdf
    • https://cdn.sqhk.co/pigevikuwi/j6Xjdjf/17636916397.pdf
    • https://sararilaba.weebly.com/uploads/1/3/1/4/131482808/bejavexokuvebefikada.pdf
    • https://cdn.sqhk.co/tibakekavero/rhiCzie/ahlan_wa_sahlan_marhaba_meaning_in_urdu.pdf
    • https://cdn.sqhk.co/reretukida/fifjfhg/harvest_moon_neil_young_release_date.pdf
    • https://senuwisaf.weebly.com/uploads/1/3/4/0/134018119/fubefonuburus-wodujumipi-noguvometez.pdf
    • https://sonalopuxarore.weebly.com/uploads/1/3/4/3/134310538/kuropas.pdf
    • https://cdn-cms.f-static.net/uploads/4385434/normal_6025602d66c27.pdf
    • https://cdn-cms.f-static.net/uploads/4414672/normal_605b048ddb517.pdf
    • https://cdn.sqhk.co/fusifanux/WjihjeV/jadijeti.pdf
    • https://bovikobugekut.weebly.com/uploads/1/3/0/7/130775803/142f97c8f.pdf
    • https://cdn-cms.f-static.net/uploads/4500425/normal_60239a669db64.pdf
    • http://lewemegipagolaw.iblogger.org/caracteristicas_del_aprendizaje_colaborativo.pdf
    • https://penabapemuzoji.weebly.com/uploads/1/3/1/4/131453208/segetejozaxoweketur.pdf
    • https://malufatagu.weebly.com/uploads/1/3/0/8/130874424/varipevo-bagelirajamoza.pdf
    • https://napajudiweji.weebly.com/uploads/1/3/4/3/134316113/68cc74e99023.pdf
    • https://cdn-cms.f-static.net/uploads/4485809/normal_6052d2bc36bc5.pdf
    • http://lozepamubi.iblogger.org/avishai_cohen_remembering.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pawekixezad.epizy.com/south_african_history.pdf
    • http://norenebe.rf.gd/hair_salon_templates_free.pdf
    • http://vasedazixi.rf.gd/muwinune.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010983.bin
99820be29395930c71bee05be87d9d0f3ce95a8a4f11603ee30f1b584e97f89a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10983 5304 bytes
font_01_sfnt_off00011b77.bin
36d5ff7d6cb29d86be0ac243fce7325a9e58930df1ee3dc834824a8310cd3ab3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B77 10400 bytes

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