Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8e808aee2dd855…

MALICIOUS

PDF

57.2 KB Created: 2020-11-07 23:00:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: ac437a4229c11833816578e7b03df60f SHA-1: 2525972c2367cfbc296765d5a43f8c55831903a5 SHA-256: 2c8e808aee2dd8559b37e19049edbe34c80e4dc89d7221c9b620659758ca3e35
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/123?keyword=free+games+downloads+apk PDF link annotation
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/vamixas.pdfIn PDF document text
    • https://fopimakalegej.weebly.com/uploads/1/3/0/7/130738542/sipajejojagox.pdfIn PDF document text
    • https://jewadasin.weebly.com/uploads/1/3/4/6/134604584/kemomexipu.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/1021114.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
    • https://nigokozop.weebly.com/uploads/1/3/4/4/134436215/dukedolanowewosa.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/xuvizilutozakuli.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
    • https://uploads.strikinglycdn.com/files/4458ac49-5d87-494d-a906-d697fd844218/oracle_corporation_universal_serial.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/what_are_the_3_worldview_tests.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/gozasuwinik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d216e90c-dd71-451f-8a49-434e6000a32a/xaronedawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72ee884c-5ae5-49f3-9f9e-b46a7cbc5869/55848119421.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ffd17d5-818a-480f-a566-5fb1bd6d7554/62944572081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3135e398-93b9-4adc-bcb3-cbf74bcf5a90/scrap_metal_6_poki.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE7 5052 bytes
SHA-256: ea4523f3a557daac4e1e2c63f0c64343990ae99ece31c16d4058f5056bfa91da
font_01_sfnt_off00007c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C04 2988 bytes
SHA-256: b3d3a31ddb86880b42d32bc181ae49b93639243d918d9418e6175c16e63f043c
font_02_sfnt_off000088af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88AF 12044 bytes
SHA-256: e639c604461cbfe36b7a8f3ad496090e9d60331394e10b6b3fdbd4687351f60f
font_03_sfnt_off0000b020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB020 17036 bytes
SHA-256: a5ae56760f831e0ad12bd90265b30caf04d23a9c2af51d5f28e9ea21035d2384
font_04_sfnt_off0000c879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC879 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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