Malicious PDF — malware analysis report

Static analysis result for SHA-256 12ac550a5e793d91…

MALICIOUS

PDF

78.6 KB Created: 2021-02-12 18:37:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b2fd0a6f0a5c6c550362c7f32b9de8ba SHA-1: b499c167ce1cb3377895df32c590e4f395a244bc SHA-256: 12ac550a5e793d913980085aecf80b99e641e99493ff137744dc3a25e271ecd6
214 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic further suggests a large number of outbound links, many of which are likely malicious or part of a link farm. The ML_NYX_PDF_MALICIOUS and ClamAV detections confirm the malicious nature of the file, classifying it as a phishing or trojan variant.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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.
  • 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/wix?keyword=bass+guitar+notes+pdf In PDF document text
    • https://fazafunapogaz.weebly.com/uploads/1/3/4/1/134131986/3595943.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481155/normal_601d8342e6da4.pdfIn PDF document text
    • http://gozipoxeget.iblogger.org/gekawepuv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475215/normal_5fefef63b810e.pdfIn PDF document text
    • http://surogufepisim.iblogger.org/abstract_art_vector_free.pdfIn PDF document text
    • https://vibajadulefunuk.weebly.com/uploads/1/3/0/8/130874079/mojubarujaxazel.pdfIn PDF document text
    • https://fokinovev.weebly.com/uploads/1/3/0/7/130775288/8c3cc0.pdfIn PDF document text
    • http://urott-hu.com/salesforce_identity_and_access_management_resource_guidegh9qp.pdfIn PDF document text
    • https://wizugelavuri.weebly.com/uploads/1/3/5/3/135325487/3765682.pdfIn PDF document text
    • http://kartaidatodemeleri.com/diamond_microdermabrasion_manual9b1dj.pdfIn PDF document text
    • http://fb-pageunderreview.com/raanjhanaa_2013_movievaxd4.pdfIn PDF document text
    • http://instofficial.online/26981643764fhba6.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
    • https://s3.amazonaws.com/fezenur/calendario_rusia_2018_para_imprimir.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/covalent_bonding_worksheet_answers.pdfIn PDF document text
    • http://kugofabafomozo.epizy.com/24196899400.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/full_and_final_settlement_agreement_template_nz.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/sheetz_gas_station_apple_pay.pdfIn PDF document text
    • http://sivokag.epizy.com/warner_brothers_studio_tour_guide_jobs.pdfIn PDF document text
    • http://sewoxoxitif.rf.gd/aambala_tamil_song_free.pdfIn PDF document text
    • http://webubekesivamuf.epizy.com/jazarobabofaxitak.pdfIn PDF document text
    • https://s3.amazonaws.com/saziwijaxodav/34701616248.pdfIn PDF document text
    • http://mibelajute.epizy.com/fundraising_chart_thermometer_template_word.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_off0000e973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE973 5108 bytes
SHA-256: 9f20a0aa7764ecd706e935850cc19188010c8edd2a4b436232a488671bb0a8c0
font_01_sfnt_off0000fadc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADC 10592 bytes
SHA-256: e48a59617312e771d5b03fa2eb90f5bb8fdbe0ad811cb41a99785907388dead5
font_02_sfnt_off00011f2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F2B 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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