Malicious PDF — malware analysis report

Static analysis result for SHA-256 07eae294353caba9…

MALICIOUS

PDF

64.9 KB Created: 2020-11-24 07:59:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 12d775cee842ce7c6097994da120f117 SHA-1: 6edc04e388485146727a84768fca4a53fbe34481 SHA-256: 07eae294353caba98cf1fd14daeed4c4491f497c09f2c44495d452b44ac6e8dd
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains a large number of embedded links, many of which are designed to appear as legitimate PDF documents. However, one of the primary links, 'https://traffmen.ru/aws?utm_term=photoshop+actions+free++psd', is identified as a known malicious redirector. This suggests the document is part of a phishing or scam campaign, aiming to direct users to malicious infrastructure. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffmen.ru/aws?utm_term=photoshop+actions+free++psd In PDF document text
    • https://cdn-cms.f-static.net/uploads/4390366/normal_5f9f33f066c6f.pdfIn PDF document text
    • https://rubosesizip.weebly.com/uploads/1/3/4/7/134744628/kigafarexobo.pdfIn PDF document text
    • https://zafojepomekosax.weebly.com/uploads/1/3/4/3/134352399/xinodi.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/mamibis/barood_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/bemifetuxowesiko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5bc9832-2112-4e5c-ab7f-3b8892af7a83/geico_employee_handbook.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/mayora_indah_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/war_against_all_puerto_ricans_book.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/iti_admission_form_2019_up_date_ts.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_off0000c1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1AC 5212 bytes
SHA-256: 4ca43e7d739a1ca77bdddfa16e7c438fdda520b4229f56a53f68e1d05f04a606
font_01_sfnt_off0000d362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD362 10568 bytes
SHA-256: 90aa3ec46bbc02b71d4998d8c97fa8f405bd045759e015d8b6bcad314cc2fd04

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