Malicious PDF — malware analysis report

Static analysis result for SHA-256 7da4e5f3a5a3e081…

MALICIOUS

PDF

550.5 KB Created: 2021-03-31 13:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 9366606921f17d6c28bc93791656f87f SHA-1: 283c6ef43537ec641360de5e91efd9bc2abdd519 SHA-256: 7da4e5f3a5a3e081bfd4e8de79c3e6623ccd4579a475ad9cd8e732edafc049c9
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. The 'SE_MFA_LURE' heuristic indicates the document is designed to harvest credentials or abuse multi-factor authentication. The embedded URL points to a domain associated with phishing activity, likely serving as the lure to a credential harvesting page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9386

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://ponafet.ru/award?keyword=skf+cylindrical+roller+bearing+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366662/normal_5fd7730d62385.pdfIn PDF document text
    • http://metalllift.ru/software_architecture_document_templatelx5hf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381302/normal_6059e9db3d9c6.pdfIn PDF document text
    • http://fito4ka.xyz/munaranekeviwixojusaragukyj3k.pdfIn PDF document text
    • http://help-bluebadgecustomer.com/499886499maa4t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379971/normal_5fd09b7eda9c0.pdfIn PDF document text
    • https://cdn.sqhk.co/wopiwozaso/jaBNMic/cytoxan_drug_information.pdfIn PDF document text
    • https://cdn.sqhk.co/dodirijobadi/j40ic5b/fikogipawed.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/rabewiruzitewa/6856742862.pdfIn PDF document text
    • http://dulubuli.rf.gd/reportagem_globo_esporte_rs_hoje.pdfIn PDF document text
    • http://sejekowosabukog.epizy.com/infosys_aptitude_questions_and_answers.pdfIn PDF document text
    • https://8964868a-aef6-4da0-9a9b-29de7c28e0c5.filesusr.com/ugd/b910ae_cf989a7383fd4ba8bf5b29077194fa19.pdf?index=trueIn PDF document text
    • https://ede8a7a3-2377-4e09-926a-401222b31c25.filesusr.com/ugd/81c89d_5d36134f0a51412281c5adabc78ac343.pdf?index=trueIn PDF document text
    • https://4edd92ed-4e96-4c3d-a837-a16c7246ae9e.filesusr.com/ugd/7c3149_8be3519ee0784daca5bc40d0cfa40a6d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/wazudezixofatefe.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/sidosedopumuwed.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/2_inch_3_ring_binder_spine_template.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_off0007da70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA70 37248 bytes
SHA-256: c2bf20c7fbaacf4a76c1c1d7aa6947f2187c2030e7060f385825688ecc43bfac
font_01_sfnt_off000849aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849AA 5552 bytes
SHA-256: a74504e13782518e1a11a98ac01a5e65382bd5661f68d92a5a1d89cc9aae41e1
font_02_sfnt_off00085cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CAC 13980 bytes
SHA-256: fad5295b8b31239db2e0a3cfe4770321946719898ea3b02aa6fbfcb31f816b8b

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