Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcb0d89824688428…

MALICIOUS

PDF

62.9 KB Created: 2020-10-25 11:11:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 86596d0547a40d1d0a4d800520640abb SHA-1: a81607bf59bfe218ea10939f86a64f21b2c11e23 SHA-256: bcb0d89824688428a5301d65d7e8aef6dfe2e722aff8955c4feff6160ef008b7
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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://ttraff.me/pify?keyword=banking+chronicle+magazine+pdf+april+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_5f8872d40ff1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393515/normal_5f950884b363c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368246/normal_5f88248a88b0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392869/normal_5f94293e07ea1.pdfIn PDF document text
    • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/662261.pdfIn PDF document text
    • https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/toniviboful.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/fexemolenale.pdfIn PDF document text
    • https://fosogaji.weebly.com/uploads/1/3/1/4/131455903/vovovi.pdfIn PDF document text
    • https://biwefixosepow.weebly.com/uploads/1/3/4/3/134334309/56ded5e26e.pdfIn PDF document text
    • https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/96b45a7f16.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
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/61ec1d70-d750-4ca9-823d-a42e8dda0b5d/hero_s_choice_chest.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4ed4bf8-38c0-4ee2-8fe7-5f2a5f6d0576/53488391006.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c0fc39b-b775-4000-9827-307e4e2fb551/beats_studio_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa8c942a-4609-4f93-b725-01ad8f1665f6/ponowomivelurigiva.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/word_meaning_hindi_to_english_dictionary.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/suzufisufa.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/vabalogasejutilotugubik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/7313/4492/files/41253504571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7481/7693/files/bibufasotikem.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000a649.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA649 16824 bytes
SHA-256: 987a4f74cab6b8f3cb35d28e4a74e585a77a10d32f84642a1e99baa705893965
font_00_sfnt_off000064a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A8 5536 bytes
SHA-256: 5583a3429552b315c1692c2aaf687ea843f5a43d79975bf4f9513843590f8b03
font_01_sfnt_off00007743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7743 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off000082a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A6 10436 bytes
SHA-256: fc32d5de27f324fe7b957ea48910be9ffbea959b3cb98b19a19663595597e3a4
font_04_sfnt_off0000bdb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDB2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
font_05_sfnt_off0000cbb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBB5 10140 bytes
SHA-256: d8c33b9dbe3f52627a36f1a505de7b4419e91ebb2e844ee7c955e7e8b54c4405

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