Malicious PDF — malware analysis report

Static analysis result for SHA-256 005571772dcc55c9…

MALICIOUS

PDF

79.5 KB Created: 2021-03-22 09:05:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 5ed88427556decc0aae80802d348ec49 SHA-1: 2a551c00c3b810f8544afe1d0a61afb8344e09ee SHA-256: 005571772dcc55c9d561753ce73824acc93ce2649a7360fb014170105cad9a3e
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a primary suspicious URL pointing to a domain associated with phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to a 'metal detector' which likely serves as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://botokaw.ru/strik?utm_term=bounty+hunter+discovery+1100+metal+detector+gold PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4471240/normal_602869f27611d.pdfIn PDF document text
    • http://newutatokulu.getenjoyment.net/amniotomia_tecnica.pdfIn PDF document text
    • https://xemilesexevig.weebly.com/uploads/1/3/4/2/134266110/128373.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491688/normal_6033d0ff7f23b.pdfIn PDF document text
    • http://narezekopalezi.iblogger.org/chaffoteaux_inoa_25_ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489429/normal_5ff658a4c318a.pdfIn PDF document text
    • http://tulalenabeparuk.iblogger.org/37412288127.pdfIn PDF document text
    • https://wajirabipuxu.weebly.com/uploads/1/3/0/8/130874591/puxefe.pdfIn PDF document text
    • http://kimugifogetami.medianewsonline.com/25257244752.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501777/normal_5fd171847c311.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420025/normal_604f7631a9c54.pdfIn PDF document text
    • https://vaxevadokipab.weebly.com/uploads/1/3/4/6/134610393/b0e03.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zenuvivasefum.epizy.com/defender_of_the_crown_dos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26b64b2c-2ea9-466c-9b3b-0c31457c5674/2013_dodge_charger_se_engine_for_sale.pdfIn PDF document text
    • http://suvemavukefejig.epizy.com/91778554793.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/124ead73-ad23-4724-87b9-c3ceaac5d78b/disable_hands_free_mode_samsung_galaxy_s4.pdfIn PDF document text
    • https://85fc0914-20e3-4f1c-be8c-de7e6f89f47e.filesusr.com/ugd/a44510_2daeb969978a4c5aa0e642abd43b7c46.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5543e658-ca22-4cb1-a63f-e95d56226ebe/2003_honda_rancher_350_es_oil_change.pdfIn PDF document text
    • https://36071b1a-d853-4ad1-bccf-0ed894d94038.filesusr.com/ugd/906e9f_ecc28c351cf84d7e9a90479e9d24cc7c.pdf?index=trueIn PDF document text
    • http://juborekif.atwebpages.com/darazifuwerinuwajijokikif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfc344c2-013e-413d-b8e9-f0aaba556067/73320930131.pdfIn PDF document text
    • http://nikadukukoz.rf.gd/89264888156.pdfIn PDF document text
    • https://61090d85-22e6-4724-b969-52a17785150c.filesusr.com/ugd/952c2e_6130a88c1d7a47bdbda601b71329544d.pdf?index=trueIn 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_off0000f68b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF68B 5756 bytes
SHA-256: 5e30565fb8eb257e13509196d255c1ae7f50dd972872bf7cceb66d61fa7cdf36
font_01_sfnt_off00010a08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A08 11044 bytes
SHA-256: 4841e145e0718b2bb63497451904aa99f4badd39a70c502cd218e8f8b1ec3314