Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e6a5b1be7aa315…

MALICIOUS

PDF

107.0 KB Created: 2021-05-12 23:24:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: dd5796e1c8b10e1091fa1be3ac5717ed SHA-1: 7dc380a26adfaa4bfc11a1ce51b3151c963fd122 SHA-256: 67e6a5b1be7aa315c7691d78cbf51ad5ad6ef650c204a0b569f8ad0a2c5d726c
156 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. The document contains a large number of external links, suggesting a link farm or phishing attempt. One of the primary URLs, https://midufefew.ru/strik?utm_term=marshall+as50d+price+in+india, is likely part of the malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://midufefew.ru/strik?utm_term=marshall+as50d+price+in+india PDF link annotation
    • https://tedawubav.weebly.com/uploads/1/3/4/3/134376018/fojimiwetaju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446942/normal_605bfb4971c40.pdfIn PDF document text
    • http://wuwisometojone.66ghz.com/autocad_2007_for_pc_windows_10.pdfIn PDF document text
    • https://timokejega.weebly.com/uploads/1/3/4/4/134454798/nemibe-dofomalilewak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530910/normal_6036b6e75174a.pdfIn PDF document text
    • https://toxafowusolele.weebly.com/uploads/1/3/2/8/132815148/fuwifojuz-sozepepirinusas-bupuget.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370087/normal_601cbed13c2a7.pdfIn PDF document text
    • https://feraresafobigim.weebly.com/uploads/1/3/0/8/130813798/f4c3059b95.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8ed7b8cb-9bae-4def-ad9b-66b28cd11f91.filesusr.com/ugd/740d8c_6d1ea0240e484552975bb0c2f8a2beff.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/272adb9b-ba22-42bd-991a-48efc088117a/swahili_to_english_dictionary_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/czasy_angielskie_wiczenia_gimnazjum.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/passaggio_da_aeriforme_a_solido.pdfIn PDF document text
    • https://ad9f1622-e3b7-49db-bfef-326c48fb2104.filesusr.com/ugd/a467d2_022cf35b96b3443a995230cd64cd519e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/getizar/4500_ford_backhoe_transmission_problems.pdfIn PDF document text
    • https://944456f3-75eb-4cd6-bbfd-656b3713ada1.filesusr.com/ugd/2c8d66_e63d868714344c83b752c8db39cfc0a3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xelimewat/81156504904.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/how_to_activate_dunkin_donuts_gift_card.pdfIn PDF document text
    • http://fivasire.rf.gd/voped.pdfIn PDF document text
    • http://gelukadusedi.epizy.com/asia_countries_and_capitals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d6207d7-a939-435e-b079-a74b24b7d93f/what_did_nick_nolte_play_in_the_mandalorian.pdfIn PDF document text
    • http://rejefuwozumij.rf.gd/36526134696.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_off0001650a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1650A 5432 bytes
SHA-256: 837cb3e1919dbbb53afc2e536b9fb99ab6dd283aea66e7c5cf50a5a8fe85277b
font_01_sfnt_off00017789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17789 11528 bytes
SHA-256: 4ad48bafab69e78d63e691d1eb250446c8809de1c61af5d2340e8138c2011d2e

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