Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14f22b2283f18c6…

MALICIOUS

PDF

69.7 KB Created: 2021-02-11 17:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2086c89053f6204696065199c4766547 SHA-1: b61f2f4a61be80a3b6144d57afa9f8d91c9c1ebe SHA-256: c14f22b2283f18c66b9fff4c77ca0ae6db88ba0597d332ea5124ec119e5c872e
184 Risk Score

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://crophysi.ru/wix?keyword=chicco+keyfit+30+car+seat+strap+covers In PDF document text
    • https://subokolabipu.weebly.com/uploads/1/3/2/3/132303028/zekoxuragane-dumezerebo-zidukiju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489409/normal_601fcddd7a8ee.pdfIn PDF document text
    • https://mimevomakiket.weebly.com/uploads/1/3/4/6/134693464/62d927d.pdfIn PDF document text
    • http://normaa-id.com/lao_alphabet1h25b.pdfIn PDF document text
    • http://homeolimp.com/lajibamebexewupapadqey3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411512/normal_600ff58fb821f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454682/normal_5fee3ebc705d4.pdfIn PDF document text
    • http://alexsaf.ru/lekavojivinexadorudujsrpf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421629/normal_601f3066c54bd.pdfIn PDF document text
    • http://fruitslope.online/aahar_jharkhand_pds_reportj1b30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459182/normal_5ff134105d24d.pdfIn PDF document text
    • https://zunejafeg.weebly.com/uploads/1/3/4/3/134382709/367311.pdfIn PDF document text
    • http://filemarker.store/lubopekixowivomuxosva1yx.pdfIn PDF document text
    • http://anarchymedya.com/emergency_evacuation_plan_templates8mgqa.pdfIn PDF document text
    • http://gratoramaa.website/afternoon_with_irish_cows_literary_devicesry3te.pdfIn PDF document text
    • https://sukorajonivo.weebly.com/uploads/1/3/4/1/134108587/porozazafij.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495395/normal_5fc834d7c9c92.pdfIn PDF document text
    • http://mini-cam1.club/gojexukigavibivewufunotanvc092.pdfIn PDF document text
    • http://artyom.guru/barcode_generator_software_free_mac1e1i2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d0ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0CA 5508 bytes
SHA-256: fd600bc0412843edcc86b4ea293c7ec3eb0851aec1e58474b4ef14547702ca44
font_01_sfnt_off0000e393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE393 11580 bytes
SHA-256: cb7ab2fe147950bbf8550e3d6561a70bd4311972db80d53be543a8eced63335e

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