Malicious PDF — malware analysis report

Static analysis result for SHA-256 883fadf3019dbcba…

MALICIOUS

PDF

70.9 KB Created: 2021-03-07 01:57:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 760ef1aa919c5969c9b2ef11988d14f2 SHA-1: dbaed5baae6faa098e1ef1702e05c9641282adb1 SHA-256: 883fadf3019dbcba7d91d18a31202558a480c3f83a4dbb70684dcde0358598ea
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://golowaki.ru/wix?keyword=energy+vocabulary+worksheet+answers PDF link annotation
    • https://kofovozeregom.weebly.com/uploads/1/3/4/3/134313602/4b5867759.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwumixe/ipjdtft/knife_hit_the_knife_throwing_game_app.pdfIn PDF document text
    • http://badgesverified.com/ignition_coil_1_primary_circuitqltjn.pdfIn PDF document text
    • https://cdn.sqhk.co/fanoxozowupe/s8iajcr/lagixetinozugamopenunepom.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/80112936270.pdfIn PDF document text
    • http://wugumonisukanib.sportsontheweb.net/penulojiligajunufo.pdfIn PDF document text
    • http://thedopemarketing.com/harry_potter_and_the_philosophers_stone_first_chapterunees.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/bTibA3B/fojulogiwodigajotu.pdfIn PDF document text
    • https://gegiritofizupog.weebly.com/uploads/1/3/4/6/134644009/lajas-fojoge-runefuzulewi.pdfIn PDF document text
    • https://cdn.sqhk.co/nijegonusas/id1rhbR/gupigiri.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/lord_of_the_rings_audiobook_reddit.pdfIn PDF document text
    • https://cdn.sqhk.co/rifusofuwedi/djh4jat/63764671197.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://11ab4cf5-156d-4417-99e9-5039b2a7eb5f.filesusr.com/ugd/82d61e_98876d2750dd419da4585ed35f5e6f6f.pdf?index=trueIn PDF document text
    • https://1923692e-f727-4f58-80a8-3583160180e3.filesusr.com/ugd/c4ccc4_a78630a95b5d4b31a450ec19029b1419.pdf?index=trueIn PDF document text
    • https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_bedd1baf37c643738067703fba838c7a.pdf?index=trueIn PDF document text
    • https://a49a6154-edc8-4132-95a2-c7bb8d673fe9.filesusr.com/ugd/551169_857fbae55f514eb48399dbc33f8fd3de.pdf?index=trueIn PDF document text
    • https://03386fec-e341-46be-bf9f-2f2bd19f9bfe.filesusr.com/ugd/bf57b5_13c56ae6b9dd49869720fa40e8a3a48f.pdf?index=trueIn PDF document text
    • https://fe2b84af-b373-48e0-a714-f820169e3fe9.filesusr.com/ugd/ed1d2e_caaef0443ac14ca88b6883903652750b.pdf?index=trueIn PDF document text
    • http://xowobovu.myartsonline.com/tudemeb.pdfIn PDF document text
    • https://6ba7316d-b84b-4ccb-a32a-103c856d4013.filesusr.com/ugd/91f37e_fc427291cb4246de938866d54a72ea67.pdf?index=trueIn PDF document text
    • https://3a7b682b-4b85-4b21-836a-a34929c8735b.filesusr.com/ugd/0cd3a8_e9df793868914a89a73bd3c6d67b3c19.pdf?index=trueIn PDF document text
    • https://2c5a832e-93c4-4ab0-bef0-969ef348d747.filesusr.com/ugd/cc5daa_7f0096f28b514db0a5e3b4acac1123af.pdf?index=trueIn PDF document text
    • https://cb0920a4-0dfc-4587-8161-bd3bf883b043.filesusr.com/ugd/df391a_3aa6c98704624ca180c847fd62103380.pdf?index=trueIn PDF document text
    • http://bokepomi.onlinewebshop.net/dujotufakapipirisupix.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_off0000d845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD845 5476 bytes
SHA-256: 8cab5134059c9fe933e36d6b1ae55e4a3930ae8f094cc6654c2e20c434b06386
font_01_sfnt_off0000eb05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB05 10132 bytes
SHA-256: 0a14f9b636847580b54778bac6a35b237b9dff63ea5228bf8baf8298906ed120