Malicious PDF — malware analysis report

Static analysis result for SHA-256 005a6159adee2357…

MALICIOUS

PDF

72.1 KB Created: 2021-02-18 03:36:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 2e5b481d9e1d9431de0c9edff99757ca SHA-1: ef8e57158744575f63f9bd1a56dae94a0873101b SHA-256: 005a6159adee2357633ba62f5823a9e6e5be6e955874f5f6fc23434608ac14c3
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support this assessment. Although no scripts were extracted, the presence of a malicious URL and the document's structure suggest it's designed to trick users into visiting a harmful site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=breadman+bread+machine+reviews In PDF document text
    • https://cdn.sqhk.co/giganopof/ieibkdt/pottery_barn_baby_costume_sizing.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500877/normal_5ff915b7871c6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387061/normal_5fc595e0646a1.pdfIn PDF document text
    • http://guviwogorusux.iblogger.org/accounting_balance_sheet_format.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/0JWhdTE/local_bars_in_las_vegas.pdfIn PDF document text
    • https://cdn.sqhk.co/zovaratigu/AibOhei/one_punch_man_characters_villains_season_2.pdfIn PDF document text
    • http://babobekoru.66ghz.com/woolworths_clothing_account_application_form.pdfIn PDF document text
    • https://cdn.sqhk.co/webuzifinuno/d8gfgh6/patamemefikimedu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zunimesigo.rf.gd/cantos_espirituales.pdfIn PDF document text
    • http://jeputujakajaj.epizy.com/zalerefisamifaduvalapi.pdfIn PDF document text
    • http://talulof.epizy.com/fuvumifosukojuzi.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_off0000ddb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB0 5488 bytes
SHA-256: ba689e7897399ba0b93ce6b9b55969a69e820a860b7703db021a782ea2ba0e51
font_01_sfnt_off0000f043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF043 10512 bytes
SHA-256: 87f3e5530bae4ba16d1aab6297fbd3a9a715fba1768d616f9c9124215dbeaf0c

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