Malicious PDF — malware analysis report

Static analysis result for SHA-256 69f26065da32b7ac…

MALICIOUS

PDF

82.6 KB Created: 2021-05-25 03:29:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8340328d8e80d876d40b7364f7416bbb SHA-1: ce863b04794ec86539ba98538bae55852f632d61 SHA-256: 69f26065da32b7ac57c5192a9575ed43fd752428dcc5af0137d6c3b028f3b6fc
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs, such as 'https://xezojetit.ru/strik?utm_term=how+to+transition+from+training+potty+to+toilet', are likely used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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.
  • 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://xezojetit.ru/strik?utm_term=how+to+transition+from+training+potty+to+toilet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404739/normal_5fdc43d474692.pdfIn PDF document text
    • https://jutoxanifi.weebly.com/uploads/1/3/5/3/135321179/kalosixe_defebo_lijaxisul.pdfIn PDF document text
    • https://mulofujuxemo.weebly.com/uploads/1/3/0/8/130874025/pareg-tagavireni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389366/normal_6018b9e6dd432.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369903/normal_604e73b09e9a4.pdfIn PDF document text
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/metivigaropo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456999/normal_602212795ca8f.pdfIn PDF document text
    • https://zapineri.weebly.com/uploads/1/3/4/7/134707132/kozaxepagesixefadija.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393033/normal_6011d0a165edf.pdfIn PDF document text
    • https://modefijibig.weebly.com/uploads/1/3/6/0/136011483/xodozarum_lipuwesizal_furumule.pdfIn PDF document text
    • https://nokajadum.weebly.com/uploads/1/3/4/8/134887388/86976f519.pdfIn PDF document text
    • https://supagerafigi.weebly.com/uploads/1/3/0/8/130874211/lisavifilu_sivovunov_gorapusedifaj_kuzetanuxaj.pdfIn PDF document text
    • https://norofuzalugegok.weebly.com/uploads/1/3/4/8/134882219/805f73bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421966/normal_606605f33eb87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481841/normal_60471e3a29572.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5df320e-c43c-4e1b-bb11-28f81006fabd/55066012926.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/free_advertising_templates_for_photographers.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/79907060087.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba742913-5e17-433a-955e-f4648b550351/89505851622.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acfd2d20-cd7a-44a8-9305-0ca354d8e60b/how_to_use_scapy_in_python.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_off00010635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10635 5376 bytes
SHA-256: c2e21e4250cbc48892e891e6ca0c168865d3ed3ca7113d28dfbd3c04a6f622f3
font_01_sfnt_off00011881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11881 10584 bytes
SHA-256: a59fbdec84b3323a09393607891e199dc0f3290d1470dd864317edc36dc8c3fe

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