Malicious PDF — malware analysis report

Static analysis result for SHA-256 3582546fe52c331c…

MALICIOUS

PDF

72.4 KB Created: 2021-02-26 18:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: dd153979ab03fe9a8d159e8cdb002c30 SHA-1: 1a1ebd386aaf9d4e3ecaf177ccfecb527f258b68 SHA-256: 3582546fe52c331c3963ba97cefd200c9e1067a45138b0c530298631c9049250
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI that directs users to a URL designed to mimic search results, likely as a lure. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest it functions as a phishing or malware delivery mechanism.

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://leonvi.ru/wix?keyword=the+odyssey+part+2+coming+home+comic+strip+answers PDF link annotation
    • https://cdn.sqhk.co/kavejufa/gw9henV/getty_images_pricing_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzukada/gDIjaja/pajumogudabo.pdfIn PDF document text
    • https://cdn.sqhk.co/rozopebak/ujcjfjf/54010354528.pdfIn PDF document text
    • https://cdn.sqhk.co/wevavagu/5ghhd7q/gusoninabemejidejo.pdfIn PDF document text
    • https://cdn.sqhk.co/fexejikexew/jghj4Ez/dune_2000_steam.pdfIn PDF document text
    • http://dfwshootersupply.com/xufatumas6231q.pdfIn PDF document text
    • https://cdn.sqhk.co/nufesewepi/iff0ij8/asphalt_xtreme_rally_racing_mod_apk_data.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/tetofamuxulil/rufivakepox.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/ego_lawn_mower_blade_home_depot.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/bpsc_gov_bd_notice.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/37076008545.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/12510939917.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/asthma_attack_nhs_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/99726963861.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_off0000de3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE3A 5732 bytes
SHA-256: ae83306793965fc9caea263f130fb5ca215c4b26ee88d1b454bc554cdb3ea3f2
font_01_sfnt_off0000f1a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A4 10184 bytes
SHA-256: b921de3d993c12140eb979d328036b33d6bc24601877b2602586253683a19f9f