Malicious PDF — malware analysis report

Static analysis result for SHA-256 c652974797e37683…

MALICIOUS

PDF

42.5 KB Created: 2020-10-12 07:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 4d9a354a40b3340bbbe661e66215665d SHA-1: 767bbb2260ea7d43616f8d3f0d4de2d6e242a50c SHA-256: c652974797e3768300081907403cebf16a8e235448046d7e7167558e66841f61
184 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.
  • 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.
  • 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.link/pify?keyword=successfactors+pmgm+implementation+guide In PDF document text
    • http://gudureru.sacovalleygemandmineralclub.org/uploads/1/3/0/8/130813632/liserunufi.pdfIn PDF document text
    • http://xavim.lmsane.org/uploads/1/3/0/9/130969018/9497293.pdfIn PDF document text
    • http://ripaf.franerized.com/uploads/1/3/1/6/131606343/833908.pdfIn PDF document text
    • http://momizavox.hazemazeproduction.com/uploads/1/3/1/6/131606027/fizeduxat.pdfIn PDF document text
    • http://powazo.staffordshirewadoryu.com/uploads/1/3/0/7/130739095/47e396f5f80bb9.pdfIn PDF document text
    • http://files.stephaniebershyoga.com/uploads/1/3/1/3/131379371/1049198.pdfIn PDF document text
    • http://files.mkaracing.com/uploads/1/3/2/6/132695489/f7d8e0b28.pdfIn PDF document text
    • http://joderazig.hypnosismo.com/uploads/1/3/1/4/131410818/vokabogufanawas_sovopu.pdfIn PDF document text
    • http://bekul.rileytechnical.com/uploads/1/3/0/7/130775388/6848814.pdfIn PDF document text
    • http://jobupog.sasquatchcanada.com/uploads/1/3/1/3/131381675/tuvemafamugejobovodu.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/ed1ae809-cd88-489b-ba0a-aa306cadf094/razukus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf34cd39-a51d-4d1c-a30a-ded1c4914caa/88752557948.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33673cfb-775a-4882-b1a9-083ade803868/19618442705.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005af7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF7 5460 bytes
SHA-256: 75973af624f440bd7fbaab5d82ed45302815a4153a67a3f97c2f261f2eeb4f94
font_01_sfnt_off00006d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5C 9768 bytes
SHA-256: 3c9052d0c780bff6b00e3147d443804ebb9b63ad8654639b20d58caf9093f903
font_02_sfnt_off00008ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3