Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb4a97c81e9f991b…

MALICIOUS

PDF

73.0 KB Created: 2021-03-06 02:50:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: ef1c5860a5de95778971ee1403d885a2 SHA-1: bbc5de26cbd19322d5b237bd495c60fbeabe0dff SHA-256: eb4a97c81e9f991b445beb84bd332abc9f88a42c95d4e4b8aa7d833625e0a5b6
156 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 phishing or trojan threat. It contains a large number of external links, suggesting a link farm or phishing campaign. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to malicious sites, potentially for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://golowaki.ru/wix?keyword=word+cookies+answers+ginger+level+4 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4482406/normal_5fe1b5bfd02f7.pdfIn PDF document text
    • https://jepejopik.weebly.com/uploads/1/3/4/6/134610321/fudexajolagipolup.pdfIn PDF document text
    • https://daxokubazab.weebly.com/uploads/1/3/1/4/131406800/6683428.pdfIn PDF document text
    • https://vumokaxizojomij.weebly.com/uploads/1/3/2/6/132680848/nigutadititugu_nezojilipipuf.pdfIn PDF document text
    • https://fevebelok.weebly.com/uploads/1/3/4/0/134012800/5189435.pdfIn PDF document text
    • https://beweluka.weebly.com/uploads/1/3/4/6/134694692/070d146d0ca3f.pdfIn PDF document text
    • https://rubosesizip.weebly.com/uploads/1/3/4/7/134744628/8dc42d964088d54.pdfIn PDF document text
    • https://nedidibizexoba.weebly.com/uploads/1/3/0/9/130969065/33352.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485809/normal_5fdd16999dcc4.pdfIn PDF document text
    • https://bejamipoxef.weebly.com/uploads/1/3/5/3/135318713/jakatidojomumikogak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385620/normal_5ff471f70d86a.pdfIn PDF document text
    • http://jazesenebadajak.iblogger.org/nuxivevav.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/furunumaroxun/html5_responsive_web_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/answer_meaning_in_english.pdfIn PDF document text
    • https://fdb4f28e-c637-431f-967d-457feef73efb.filesusr.com/ugd/cf5aa9_c33560b3ae8043389b0daf414fa93caf.pdf?index=trueIn PDF document text
    • https://37bdae34-bb2f-403f-997c-54a7c09d9c06.filesusr.com/ugd/dc98cc_1e3d618e937648408d6b173d9fd0d259.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mejifavo/canon_eos_rebel_t6_guide.pdfIn PDF document text
    • https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_458e1149ff9f434d8d66c51073fbefcb.pdf?index=trueIn PDF document text
    • http://vinodek.epizy.com/31173279888.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/high_tech_bed_sheets.pdfIn PDF document text
    • http://limizepafut.epizy.com/cadillacs_and_dinosaurs_java_game_128x160.pdfIn PDF document text
    • https://e082b6be-64c0-45f6-a8ff-82b9c6f476f0.filesusr.com/ugd/1479de_a458fa5c28de4f0c81767b7b205a4497.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/7798323291.pdfIn PDF document text
    • http://lujolugajejizog.epizy.com/xijaxalerexezuxa.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_off0000e0a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A3 5424 bytes
SHA-256: 1298188bd8c615d18433765d6d5825ee165bfd4b088f8e32fbf482637f6e758e
font_01_sfnt_off0000f34e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34E 10196 bytes
SHA-256: 05d858a2dc44496b9dbd82ddbc29fdbe496ecabdc35cc0ccbc186d3c418625aa

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