Malicious PDF — malware analysis report

Static analysis result for SHA-256 59806c97f8e14600…

MALICIOUS

PDF

77.3 KB Created: 2021-04-03 07:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 022fed90dedf6c93eba0eeba0136b78c SHA-1: c176dda1e6ca26cb64636da1819f84075b849af9 SHA-256: 59806c97f8e146008dec31d6d402a2a0ad88606b324ebe1e9a70f6c1a8d8db6e
96 Risk Score

Malware Insights

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

The file was classified as malicious by ML and ClamAV, indicating a high likelihood of malicious intent. It contains embedded URLs, one of which, http://viwonef.iblogger.org/91894012613.pdf, is flagged as unknown and is likely part of a phishing or malware distribution scheme. The PDF structure and embedded content suggest it is designed to trick users into visiting a malicious site, aligning with spearphishing attachment tactics.

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 http://viwonef.iblogger.org/91894012613.pdf In PDF document text
    • https://cdn.sqhk.co/ramejolir/jjiqhgH/64715404308.pdfIn PDF document text
    • https://cdn.sqhk.co/jebumujo/ggCbgga/android_developer_add_settings_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/pesarukogi/O83chbh/hamlet_act_1_study_questions_and_answers.pdfIn PDF document text
    • http://palubofapejuraw.mywebcommunity.org/borderlands_2_concept_art_book.pdfIn PDF document text
    • https://cdn.sqhk.co/turaxulefa/ignMdhi/juzibapunovugozija.pdfIn PDF document text
    • http://rexapeduke.66ghz.com/pobirexogapupeso.pdfIn PDF document text
    • http://zisetevopazotaw.iblogger.org/fofuxabe.pdfIn PDF document text
    • http://lumosazef.iblogger.org/34051634622.pdfIn PDF document text
    • http://dazefoxezizu.iblogger.org/65557020755.pdfIn PDF document text
    • http://lazinuno.scienceontheweb.net/lewupuzetezanatap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/3IgsHNHpEfs/wb?keyword=english%20basic%20grammar%20notesPDF link annotation
    • http://muvidunijusen.rf.gd/marathi_kadambari_books.pdfIn PDF document text
    • https://s3.amazonaws.com/rizoli/luzajolaf.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/42340254091.pdfIn PDF document text
    • http://ribagapiwog.epizy.com/55161890318.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/jovepiredajuw.pdfIn PDF document text
    • http://kowexefuwuron.rf.gd/28335231781.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/68570061078.pdfIn PDF document text
    • http://wizigipixe.atwebpages.com/natavigexan.pdfIn PDF document text
    • http://nogomazarem.epizy.com/metal_gear_solid_v_apk.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_off0000e475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE475 5096 bytes
SHA-256: ef057082c60da661d245068685d1381eceff49e98b208b3d996360f781ccb758
font_01_sfnt_off0000f590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF590 10880 bytes
SHA-256: c1c78dba575c2fa21fe179718b5685274ac03e0177b41a3efc656459cdfff0f5
font_02_sfnt_off0001196b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1196B 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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