Malicious PDF — malware analysis report

Static analysis result for SHA-256 0274c86f71f19abb…

MALICIOUS

PDF

72.4 KB Created: 2021-02-20 19:46:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0520dffc3c6e5e2ccad438e1ac8b8e3c SHA-1: 2b52afe4e38903434cbac939fad4849f129140d8 SHA-256: 0274c86f71f19abb885d2b3ca0fc9018bab1bbd0690fc8767a21693659b329eb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://druttle.ru/wix?keyword=eclipsecrossword.com+answers+sejarah+tingkatan+5 PDF link annotation
    • https://cdn.sqhk.co/dodamewope/PHgifig/bawakosem.pdfIn PDF document text
    • https://jesipawuba.weebly.com/uploads/1/3/0/8/130874316/pukulefuw.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/zjfXhdA/smd_components_packages_list.pdfIn PDF document text
    • https://cdn.sqhk.co/bobavijiwoba/OihchfP/kogalerexun.pdfIn PDF document text
    • http://doucheop.xyz/computational_fluid_dynamics_and_heat_transfer_andersonw767r.pdfIn PDF document text
    • https://jitegolugitu.weebly.com/uploads/1/3/4/6/134643776/zafanobatefojir-dibak-temezezow.pdfIn PDF document text
    • http://reduslimitaly-official.website/pejatoripuma0h7ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408997/normal_602d5d5fc8f33.pdfIn PDF document text
    • http://azorocheat1.xyz/jawipawozepizuu4zx2.pdfIn PDF document text
    • http://trokot-shopnew.online/69082046553h423z.pdfIn PDF document text
    • https://pazonijozofax.weebly.com/uploads/1/3/1/6/131606668/kotezepasenifatopa.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/lonozote/70559120826.pdfIn PDF document text
    • http://gotenekopibijo.epizy.com/avg_free_voor_android_tablet.pdfIn PDF document text
    • http://nalakakowim.epizy.com/19907078888.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_off0000dc22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC22 5832 bytes
SHA-256: eef08f4cb5cedde4c469fa8eb68118bcc4dc5db0f00afedf01db1d24da02efef
font_01_sfnt_off0000effa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFA 10764 bytes
SHA-256: 443f697ddaa8b3f0a7d477bb3d37d7c7d0f655e0744aa6b2975470c147b30eeb