Malicious PDF — malware analysis report

Static analysis result for SHA-256 7058e26409dd9e7c…

MALICIOUS

PDF

68.7 KB Created: 2021-01-09 16:37:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 3116e3fc93a8e52c64e7b899236d4fb7 SHA-1: 3802ba93b5d1f90b1600d556a7055331177d7a57 SHA-256: 7058e26409dd9e7cea1c8b01e368752a79cb27d39032e12a2cf1b6a33bd558d6
222 Risk Score

Malware Insights

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

The PDF contains multiple links, with one pointing to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and a call-to-action phrase suggests a phishing or malware distribution attempt, likely using a link to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/aws?utm_term=american+english+file+2+answer+key In PDF document text
    • https://cdn.sqhk.co/ranuvore/SFmgroR/guess_the_movie_quiz_and_tv_show_blocks.pdfIn PDF document text
    • https://cdn.sqhk.co/dodagirojep/giijgd3/gopavanadoxuzadetotiw.pdfIn PDF document text
    • https://cdn.sqhk.co/xoradofexul/ibs9BlV/az_screen_recorder_no_root_mod_apk.pdfIn PDF document text
    • https://dozunetad.weebly.com/uploads/1/3/4/4/134472758/7602253.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/aMR9iig/72582808375.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/mesixadelomomo/kasupopurapejowe.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/ridel.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/how_to_turn_webpage_into_chrome.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/wuxazodojawesotige.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bdf01f4-acef-42d2-acd5-8f4b4e52bd8f/daz_loader_windows_7_download.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_off0000c2df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2DF 5272 bytes
SHA-256: ad6064497c04902b2666a6fcdec54a4916f07070955b8ff5a0a2b7a4662511a3
font_01_sfnt_off0000d49d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD49D 10444 bytes
SHA-256: 9b5d823585a7524918488ffec9470dfd2ba16bcd16c8dfa556f958a4d50187dc
font_02_sfnt_off0000f775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF775 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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