Malicious PDF — malware analysis report

Static analysis result for SHA-256 2169c8af806c5a96…

MALICIOUS

PDF

53.0 KB Created: 2020-11-02 10:01:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 5d61517adabae99266bbdda2664db452 SHA-1: 5cb3e15d1e8d4808e6c17083435c1f75350ecc4d SHA-256: 2169c8af806c5a96288198fe4be60155ba63f264d23f897dbe2b079dd981e57b
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/123?keyword=labview+vi+scripting In PDF document text
    • https://turomanusogagi.weebly.com/uploads/1/3/1/4/131453559/peror.pdfIn PDF document text
    • https://fopimakalegej.weebly.com/uploads/1/3/0/7/130738542/91a12.pdfIn PDF document text
    • https://savakorudefipe.weebly.com/uploads/1/3/2/3/132303238/1791736.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389365/normal_5f8f0372e964e.pdfIn PDF document text
    • https://todijaxazifaro.weebly.com/uploads/1/3/4/3/134342800/linazinowifumow_jeduxekorolifuj_kabisapizoboga.pdfIn PDF document text
    • https://xufitagetibo.weebly.com/uploads/1/3/4/4/134486135/vugaz_xuvunaxib.pdfIn PDF document text
    • https://kufofena.weebly.com/uploads/1/3/4/5/134504524/4729046.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/6f051031-1aee-4e13-a1fa-28dc50ce8eb4/15103695180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f43ab5ed-d240-4920-bfa9-e8dcd37d17c5/is_civil_war_always_capitalized.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d781bbc7-3630-4841-a745-0403a13936fb/87609876670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8224/4799/files/skyrim_se_fluffy_snow_footprints.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb99b2f6-71da-4f81-8751-42672e4c7914/65817157186.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7775 4980 bytes
SHA-256: 69da02a0c44f9c125ae61a5b7802eb0444dbbe3b8ab13cc6537b519604a6dc72
font_01_sfnt_off0000887c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x887C 1800 bytes
SHA-256: 6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee
font_02_sfnt_off0000910c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x910C 11612 bytes
SHA-256: 90cff242fe9ef15fd8f73aa76ee18ce4b8948c04dd05234ed76f2b2632658a40
font_03_sfnt_off0000b864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB864 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230