Malicious PDF — malware analysis report

Static analysis result for SHA-256 c269d1897ed13742…

MALICIOUS

PDF

73.7 KB Created: 2021-04-08 19:14:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: e112aea6ad2b890497b701638dfdacac SHA-1: 27a4bf4be4e5798dc899d50b840f7a500221e433 SHA-256: c269d1897ed13742511fe9e6db51bcf66e3988b0219534de52814ecfff708dd4
186 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to drive traffic or distribute malware. The presence of a lure related to "Madden mobile hack" indicates a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of malicious intent, likely leading to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://jacksth.ru/strik?utm_term=madden+mobile+hack+no+human+verification+or+survey+2020 PDF link annotation
    • https://cdn.sqhk.co/mujawiru/h7ie0ia/office_last_working_day_quotes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453906/normal_60159d15310a6.pdfIn PDF document text
    • https://gigufeti.weebly.com/uploads/1/3/4/6/134633464/a8236256e6bb9b.pdfIn PDF document text
    • https://ruworelolovifuf.weebly.com/uploads/1/3/4/4/134462917/7c019858b1e53b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367287/normal_5fc93251cb2f3.pdfIn PDF document text
    • https://vugijivanapuxa.weebly.com/uploads/1/3/4/7/134742443/muvit.pdfIn PDF document text
    • https://cdn.sqhk.co/poronujefino/hj8avge/53914434148.pdfIn PDF document text
    • https://wodanosivowifig.weebly.com/uploads/1/3/4/5/134593279/e8798.pdfIn PDF document text
    • https://ravixibede.weebly.com/uploads/1/3/4/5/134584659/vevifelud.pdfIn PDF document text
    • https://nutagabe.weebly.com/uploads/1/3/5/3/135325028/816994.pdfIn PDF document text
    • https://cdn.sqhk.co/xusozapovu/Z4TqUge/fonobej.pdfIn PDF document text
    • https://cdn.sqhk.co/bililusele/jjtJMhc/investigative_reporting_in_a_sentence.pdfIn PDF document text
    • https://xunumiselodaz.weebly.com/uploads/1/3/0/7/130775676/8689409.pdfIn PDF document text
    • https://dipakinujudisil.weebly.com/uploads/1/3/4/4/134468351/juneb-lokazerewapejob-turapoki.pdfIn PDF document text
    • https://cdn.sqhk.co/nimuxugemu/C0riahe/dunwoody_united_methodist_church_consignment_sale_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/nujorazaje/iaDgcgf/17404903832.pdfIn PDF document text
    • https://cdn.sqhk.co/goxoxasopus/Jnhhbgg/kofukezujululera.pdfIn PDF document text
    • https://cdn.sqhk.co/mowasikuso/9jCFgea/best_characters_warriors_orochi_4.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://a3de454e-1598-42bb-a259-4eb69c42f179.filesusr.com/ugd/fb5067_e66a25fafbec46f3a97b79fffc238f2e.pdf?index=trueIn PDF document text
    • https://6f847715-c85a-45d9-ae5c-7c68cc800588.filesusr.com/ugd/6e100b_5b6ad05e8e6d439ca8087b339b4cd26b.pdf?index=trueIn PDF document text
    • https://e3e1c2aa-7f41-47b0-8c2f-d823cb48b857.filesusr.com/ugd/7598fa_45ea262584314d6bbcd6f11c9bae7dad.pdf?index=trueIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F1 5788 bytes
SHA-256: 697d1065a6d29776541348f26e1039e79a82fdf8c40ad1b61924043bc745bbd0
font_01_sfnt_off0000dc6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6E 2092 bytes
SHA-256: 13678a14b930e6d42e11b2ac41b13981c2c7f5938cc30cfb194ad51886f1f1dd
font_02_sfnt_off0000e613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE613 10796 bytes
SHA-256: d743e8baac6cf5d03b3e5acc52f977e0d88209dba2ecdee5fb3ce91a0484d6fe
font_03_sfnt_off00010a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A13 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34