Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ec042f8ec2c8cd9…

MALICIOUS

PDF

73.1 KB Created: 2021-03-16 18:02:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: a6e28770833cfa10cc3bff06f3cfbe4a SHA-1: d7c2db3db61effe9b11a26d35adb41145f6d0291 SHA-256: 0ec042f8ec2c8cd9865cb87c4fb63e596bf606065952a08c9fdf895fdcc4f282
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://zajinet.ru/award?keyword=international+public+financial+management+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476946/normal_601a640c3818a.pdfIn PDF document text
    • https://cdn.sqhk.co/dewavasese/ry8vxhh/cute_ice_bear_wallpapers.pdfIn PDF document text
    • https://cdn.sqhk.co/rajunakeb/khjjdhb/70173472846.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/YjhOgdn/kuzagekegibubegera.pdfIn PDF document text
    • http://gepavozo.mygamesonline.org/how_many_catalytic_converters_are_in_a_nissan_murano.pdfIn PDF document text
    • https://cdn.sqhk.co/xejadukoxeta/a8jT1ii/sutimoderupone.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/98691056582.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500674/normal_602a593471fb1.pdfIn PDF document text
    • https://cdn.sqhk.co/nowovadizeb/gDNXYif/binefegebopofuwevezi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371786/normal_601789de117d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409258/normal_6013258943230.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/330e2ab2-143c-49a7-8663-8a7a3815b12c/what_is_psychology_of_religion_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/75150025443.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/80190442312.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4deeb40a-c034-4c62-8d0d-84c7003bbce4/ariens_ax254_engine_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/773d6add-9840-49c9-a650-1400f5dff384/47850356525.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/zagavozoduxilat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0c0d710-f5a3-4f68-9462-9db23dc590b3/is_flowers_for_algernon_a_childrens_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a2393ad-88e3-4796-8c34-185e957cb311/how_to_do_a_two_tailed_z_test_in_excel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/671c8f5c-1e99-4ca8-9afd-987c0add5a5f/79195381015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e01a2cd-1712-43a7-b14d-561f628c109c/which_of_the_following_is_an_example_of_heat_transfer_by_radiation_brainly.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_off0000e0ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0ED 5376 bytes
SHA-256: b346964a0d93a1c433e68e93802860cbe188f04717e5765c07092a85040f252f
font_01_sfnt_off0000f317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF317 10408 bytes
SHA-256: 7e239a576139d39c8a5b637ed6668323efa3819991d8bcb9e03af81242531990