Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b92233d62dafce…

MALICIOUS

PDF

75.8 KB Created: 2021-02-07 18:39:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 29e22126f8d0f64d375e44940cb836f8 SHA-1: bd4c5cc60feea462062cf77952e872fa67d8bf45 SHA-256: 97b92233d62dafce83f12266f12dd4c341afb4994f9840434dae3add02253d4c
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Android one devices under 15000' and embeds external URLs, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing lure designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wb?keyword=android%20one%20devices%20under%2015000 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4409607/normal_60030eb690d47.pdfIn PDF document text
    • https://cdn.sqhk.co/tukawezezo/0jcgjiX/51524470939.pdfIn PDF document text
    • http://gufutaca5.xyz/all_quiet_on_the_western_front4lxe6.pdfIn PDF document text
    • http://pumba-timon.space/adobe_photoshop_lightroom_cc_apk_app_downloadq96w6.pdfIn PDF document text
    • https://cdn.sqhk.co/gewanunu/ZC9jahe/41432024099.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422897/normal_6017adc1c7d54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450350/normal_601bfccc1b890.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460686/normal_5ffdb5593d683.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480581/normal_601dc7231ff66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470222/normal_600fc8edade7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451045/normal_5fd92df20e533.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384036/normal_600f2a73435a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388165/normal_5fd0b7ded0a2b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413851/normal_6007cd81d39d5.pdfIn PDF document text
    • https://cdn.sqhk.co/vatuliwa/VdkLJOB/mafia_city_ads.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413575/normal_5ff7af840581b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426551/normal_601f104bb8663.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ed96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED96 5060 bytes
SHA-256: bca4602d0dedccde70f232f179ba7f81846202702efcd14ad16cc03d5ee59338
font_01_sfnt_off0000fef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF2 10276 bytes
SHA-256: c78e56702406653225d38ca26348690f3cd94600ac35b084271220aa0f1dbb69

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