Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30d344c39f293f5…

MALICIOUS

PDF

74.7 KB Created: 2021-01-25 10:44:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 03efce8900d1c1f7c3bf3f774dfff5ea SHA-1: 7988ff22994d0da70fd2fc10ebdbc595d220e0cc SHA-256: e30d344c39f293f53ed49116d1a4781d720833b012bfe15a153e899061163a84
94 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector. The embedded content, though heavily obfuscated, suggests an attempt to disguise the malicious link as a game. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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://crophysi.ru/wb?keyword=rollercoaster%20mania%20play%20online In PDF document text
    • https://lugekovatisemo.weebly.com/uploads/1/3/5/3/135337030/8b88fdc.pdfIn PDF document text
    • https://wugeneziwepuzi.weebly.com/uploads/1/3/4/4/134494794/fozoluz-wekufetofe-zisokakekonezow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377125/normal_5fecc99532a62.pdfIn PDF document text
    • https://cdn.sqhk.co/mitugejaxel/geoiijj/16284297366.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496828/normal_6008e99cb4a3b.pdfIn PDF document text
    • https://cdn.sqhk.co/devurekon/UntlRgs/kevuzotesimodapituzebe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412763/normal_5fe388a19a1b3.pdfIn PDF document text
    • https://jijaxiwiruba.weebly.com/uploads/1/3/5/3/135333012/3bf60.pdfIn PDF document text
    • https://cdn.sqhk.co/nagubeze/gwXogeb/sebibet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497695/normal_5ff110216acac.pdfIn PDF document text
    • https://wuduzavuvavazi.weebly.com/uploads/1/3/4/6/134618101/xineguvokiro.pdfIn PDF document text
    • https://zipuwuxa.weebly.com/uploads/1/3/4/3/134376087/biwimilu_ruwapidowaser_loxatup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459469/normal_5fcbd7dc9fbeb.pdfIn PDF document text
    • https://cdn.sqhk.co/penomufepuk/1jjanid/online_marketing_strategy_sample.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/fomaralunex/goxozizopubupigovisok.pdfIn PDF document text
    • http://rubabup.epizy.com/traffic_report_on_m4_west.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/write_byte_array_to_file_java.pdfIn PDF document text
    • http://tefolinum.epizy.com/role_and_responsibility_matrix_template.pdfIn PDF document text
    • http://sobogasitizi.epizy.com/54135886084.pdfIn PDF document text
    • http://nonosolagosev.epizy.com/25949043285.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/kudupaganowigivu.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_off0000e8ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8CA 5188 bytes
SHA-256: ae46e7eda517bd6afa38732c1838227806827fdaf9556cc8b3c63af863e60f58
font_01_sfnt_off0000fa65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA65 10216 bytes
SHA-256: bd08102fde5bf09493c9450a2d70fb257809b89fa4fd1f79f57e541fb55c97ef

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