Malicious PDF — malware analysis report

Static analysis result for SHA-256 d014d1a1ffc3cc5c…

MALICIOUS

PDF

112.2 KB Created: 2021-03-22 17:10:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 7ccdf14a32b6a1ca52b87e85933d105d SHA-1: 4a14da9ef1ba3282cfbd5e7395d05cf8c104c1bd SHA-256: d014d1a1ffc3cc5c2fca56c2f3a8086da38e76eeae36cdd3dae41bd4e511a9f5
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, suggesting it functions as a link farm or phishing lure, directing users to sites like 'xezojetit.ru' and 'segway-wheelchair.ru'. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it is designed to exploit users by redirecting them to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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://xezojetit.ru/wix?keyword=fondy+unblocked+games PDF link annotation
    • http://segway-wheelchair.ru/7133170572a1c14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486566/normal_6025c8d0c5a07.pdfIn PDF document text
    • https://nitiruminaxodax.weebly.com/uploads/1/3/0/7/130738633/danotezili_kasalolikejata_segigozi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377125/normal_5fe6feeb215ac.pdfIn PDF document text
    • https://vegekonewipure.weebly.com/uploads/1/3/5/9/135964828/rukuxekomufazu_pamoliriwezefov.pdfIn PDF document text
    • https://cdn.sqhk.co/detazido/Gwhdgd5/pulirojefezigu.pdfIn PDF document text
    • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/lovitixabuvubo-rerawe-kawadulobi-bumopixa.pdfIn PDF document text
    • https://sivitudogadix.weebly.com/uploads/1/3/4/1/134108631/gademojali.pdfIn PDF document text
    • http://my-favshopd.online/how_many_sweet_potatoes_is_3_poundshpnry.pdfIn PDF document text
    • http://cucoupon.info/panasonic_kx-tga660_factory_resetfk98r.pdfIn PDF document text
    • http://fullstacket.online/774292577317rcj4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415783/normal_60167e1395514.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418385/normal_5fdae1c9cb1e1.pdfIn PDF document text
    • https://vixeweno.weebly.com/uploads/1/3/6/0/136049701/ritowar_jikekubofomati.pdfIn PDF document text
    • https://cdn.sqhk.co/kutajanode/icjatjd/xamaram.pdfIn PDF document text
    • https://cdn.sqhk.co/nazopekujavi/jfgcIie/xekexetupuxalakedeniwanaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406820/normal_6003e8dbc46d8.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/lotibabakuj/74787315995.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/us_army_field_desk_vintage.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/jeux_de_carte_solitaire_regle.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/william_faulkner_as_i_lay_dying_audiobook.pdfIn PDF document text
    • https://s3.amazonaws.com/fexuror/powerpoint_circle_chart_template.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/12427859103.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/39346147981.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/what_the_baby_girl_names_that_start_with_m.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15ED7 5424 bytes
SHA-256: f17a6baea1a81ffc5275070f95cf0ee820cc7f144538d34f0c1733fe2e88bc0f
font_01_sfnt_off0001714d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1714D 13244 bytes
SHA-256: 3153110257c6d87cfd3e41b4238e4b5588ce1479556fd54b88348a13148a1b70
font_02_sfnt_off00019d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19D3E 16036 bytes
SHA-256: 149cab45689013e99d1aa520d2e5234663aa5d8577b6aae5e423b5d60aeda4c1