Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffcfab478336ee16…

MALICIOUS

PDF

63.4 KB Created: 2021-01-12 12:32:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 6a47496fa6075430fb03725827b52c61 SHA-1: 4ae439e81f0dde54e08a0c2c315833f1af5076ba SHA-256: ffcfab478336ee168fbda4c837d48637c103953f7c3053d9ab7b8574874aa2c1
184 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically indicating it links to known malicious redirector infrastructure. The embedded URL 'https://traffmen.ru/aws?utm_term=transformers+bumblebee+helmet+for+sale' is a primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and linked URLs strongly suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=transformers+bumblebee+helmet+for+sale In PDF document text
    • https://site-1172046.mozfiles.com/files/1172046/polomegugakamomevomimarek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408991/normal_5ff4ead8e9e26.pdfIn PDF document text
    • https://suxexekara.weebly.com/uploads/1/3/4/6/134635419/3319675.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484612/normal_5fcad6f982326.pdfIn PDF document text
    • https://nexirexosevexos.weebly.com/uploads/1/3/4/5/134500935/362d30.pdfIn PDF document text
    • https://feposejixadolo.weebly.com/uploads/1/3/4/7/134744373/raxidumukuzimafum.pdfIn PDF document text
    • https://jasefeneg.weebly.com/uploads/1/3/4/4/134489721/6137230.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/rBicjgj/beyblade_burst_app_mod_apk_5._0.pdfIn PDF document text
    • https://cdn.sqhk.co/silinetufid/qNigU0T/pudobifabodowedabanaja.pdfIn PDF document text
    • https://cdn.sqhk.co/nugutobudan/IGSgjhi/drum_set_parts.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/mozirolinitaje/13619326312.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/wolfram_mathematica_free_windows_10.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_off0000bcc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCC1 5096 bytes
SHA-256: 404f176021994ac1e4ecb22755cf9085872e25fa976fd2f820cd77d261575f3c
font_01_sfnt_off0000cddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDDF 10308 bytes
SHA-256: 7c46bd9b79995ce248d7a2bcc3834236bd5ca02660f750fd0ee4947d4a936d82

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